Information Systems Security: An Overview
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The document provides an overview of information systems security. It discusses what information systems security entails, including prevention of system-level attacks, network-level attacks, physical attacks, and attacks using modified hardware. It also describes what system security and network security aim to protect. Examples of famous hackers are given to illustrate different types of attacks. Finally, some basic hacking terminology is defined.
![Introduction System Protection Malware Cyber-security Finale
What IS security does include?
Prevention of
System level security (e.g., OS attacks, application overflow,
etc.);
Network level security (e.g., network data evesdroping,
machine impersonization, etc.);
Physical attacks (e.g., boot computer with OS DVD);
IS attacks via modified hardware [e.g., Mifare attacks (RFID
systems), etc.] and](https://image.slidesharecdn.com/cybersecurity-160116155006/85/Information-Systems-Security-An-Overview-13-320.jpg)
![Introduction System Protection Malware Cyber-security Finale
What IS security does include?
Prevention of
System level security (e.g., OS attacks, application overflow,
etc.);
Network level security (e.g., network data evesdroping,
machine impersonization, etc.);
Physical attacks (e.g., boot computer with OS DVD);
IS attacks via modified hardware [e.g., Mifare attacks (RFID
systems), etc.] and
IS malfunction via Hardware I/O attacks (e.g., USB device
plugged into a system).](https://image.slidesharecdn.com/cybersecurity-160116155006/85/Information-Systems-Security-An-Overview-14-320.jpg)
Information Systems Security: An Overview
- 1. Information Systems Security: An Overview Sotirios Kontogiannis1 and Apostolos Syropoulos2 1Western Macedonia University of Applied Sciences Grevena, Greece skontog@ee.duth.gr 2Independent scholar Xanthi, Greece asyropoulos@yahoo.com January 13, 2016 Xanthi
- 2. Introduction System Protection Malware Cyber-security Finale Presentation Overview 1 Introduction 2 System Protection 3 Malware 4 Cyber-security 5 Finale
- 3. Introduction System Protection Malware Cyber-security Finale What is IS Security?
- 4. Introduction System Protection Malware Cyber-security Finale What is IS Security? Information system security is the software and hardware mechanisms that prevent access to certain system resources:
- 5. Introduction System Protection Malware Cyber-security Finale What is IS Security? Information system security is the software and hardware mechanisms that prevent access to certain system resources: Access Control and restrictions per user per role;
- 6. Introduction System Protection Malware Cyber-security Finale What is IS Security? Information system security is the software and hardware mechanisms that prevent access to certain system resources: Access Control and restrictions per user per role; System policy and restrictions; and
- 7. Introduction System Protection Malware Cyber-security Finale What is IS Security? Information system security is the software and hardware mechanisms that prevent access to certain system resources: Access Control and restrictions per user per role; System policy and restrictions; and Access Control and restriction per network/machine per role.
- 8. Introduction System Protection Malware Cyber-security Finale What IS security does include?
- 9. Introduction System Protection Malware Cyber-security Finale What IS security does include? Prevention of
- 10. Introduction System Protection Malware Cyber-security Finale What IS security does include? Prevention of System level security (e.g., OS attacks, application overflow, etc.);
- 11. Introduction System Protection Malware Cyber-security Finale What IS security does include? Prevention of System level security (e.g., OS attacks, application overflow, etc.); Network level security (e.g., network data evesdroping, machine impersonization, etc.);
- 12. Introduction System Protection Malware Cyber-security Finale What IS security does include? Prevention of System level security (e.g., OS attacks, application overflow, etc.); Network level security (e.g., network data evesdroping, machine impersonization, etc.); Physical attacks (e.g., boot computer with OS DVD);
- 13. Introduction System Protection Malware Cyber-security Finale What IS security does include? Prevention of System level security (e.g., OS attacks, application overflow, etc.); Network level security (e.g., network data evesdroping, machine impersonization, etc.); Physical attacks (e.g., boot computer with OS DVD); IS attacks via modified hardware [e.g., Mifare attacks (RFID systems), etc.] and
- 14. Introduction System Protection Malware Cyber-security Finale What IS security does include? Prevention of System level security (e.g., OS attacks, application overflow, etc.); Network level security (e.g., network data evesdroping, machine impersonization, etc.); Physical attacks (e.g., boot computer with OS DVD); IS attacks via modified hardware [e.g., Mifare attacks (RFID systems), etc.] and IS malfunction via Hardware I/O attacks (e.g., USB device plugged into a system).
- 15. Introduction System Protection Malware Cyber-security Finale What does System Security protects?
- 16. Introduction System Protection Malware Cyber-security Finale What does System Security protects? The system hardware, which must be protected physically. Maxim: Protect thy console before thy self!
- 17. Introduction System Protection Malware Cyber-security Finale What does System Security protects? The system hardware, which must be protected physically. Maxim: Protect thy console before thy self! The system’s OS and software resources. Also, users’ files and per user OS restrictions.
- 18. Introduction System Protection Malware Cyber-security Finale What does System Security protects? The system hardware, which must be protected physically. Maxim: Protect thy console before thy self! The system’s OS and software resources. Also, users’ files and per user OS restrictions. The system’s local services (e.g., shared service resources).
- 19. Introduction System Protection Malware Cyber-security Finale What does Network Security protects?
- 20. Introduction System Protection Malware Cyber-security Finale What does Network Security protects? System services available to end users via the Internet or Local network.
- 21. Introduction System Protection Malware Cyber-security Finale What does Network Security protects? System services available to end users via the Internet or Local network. The data that traverses through the network.
- 22. Introduction System Protection Malware Cyber-security Finale What does Network Security protects? System services available to end users via the Internet or Local network. The data that traverses through the network. The machine network information and the levels of per machine (pc) access on network resources (provided from other machines).
- 23. Introduction System Protection Malware Cyber-security Finale Hackers…
- 24. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc.
- 25. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems.
- 26. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994).
- 27. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994). Michael Calce: Yahoo hack (2000).
- 28. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994). Michael Calce: Yahoo hack (2000). David Smith: Melisa e-mail clone virus (2000).
- 29. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994). Michael Calce: Yahoo hack (2000). David Smith: Melisa e-mail clone virus (2000). Adrian Lamo: The homeless hacker of Microsoft, New York Times and Yahoo! (2000).
- 30. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994). Michael Calce: Yahoo hack (2000). David Smith: Melisa e-mail clone virus (2000). Adrian Lamo: The homeless hacker of Microsoft, New York Times and Yahoo! (2000). Jonathan James: US department of defence hacker-spy.
- 31. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994). Michael Calce: Yahoo hack (2000). David Smith: Melisa e-mail clone virus (2000). Adrian Lamo: The homeless hacker of Microsoft, New York Times and Yahoo! (2000). Jonathan James: US department of defence hacker-spy. Gary Mckinnon: US Air Force, US Navy, and NASA systems hacker.
- 32. Introduction System Protection Malware Cyber-security Finale Hackers… A person who secretly gets access to a computer system in order to get information, cause damage, etc. Robert Tapan Morris: He released a worm that took down one-tenth of the Internet, crippling 6,000 plus computer systems. Vladimir Levin: Citybank hacker (1994). Michael Calce: Yahoo hack (2000). David Smith: Melisa e-mail clone virus (2000). Adrian Lamo: The homeless hacker of Microsoft, New York Times and Yahoo! (2000). Jonathan James: US department of defence hacker-spy. Gary Mckinnon: US Air Force, US Navy, and NASA systems hacker. Kevin Mitnick: switching system (PBX) phreacker (one who gains illegal access to the telephone system).
- 33. Introduction System Protection Malware Cyber-security Finale Vocabulary PART I
- 34. Introduction System Protection Malware Cyber-security Finale Vocabulary PART I noob Someone who knows little and has no will to learn any more.
- 35. Introduction System Protection Malware Cyber-security Finale Vocabulary PART I noob Someone who knows little and has no will to learn any more. script kiddie Someone who relies on premade exploit programs and files (”scripts”) to conduct his hacking, and refuses to bother to learn how they work.
- 36. Introduction System Protection Malware Cyber-security Finale Vocabulary PART I noob Someone who knows little and has no will to learn any more. script kiddie Someone who relies on premade exploit programs and files (”scripts”) to conduct his hacking, and refuses to bother to learn how they work. lamer A person who knows little and uses nukes to do his work
- 37. Introduction System Protection Malware Cyber-security Finale Vocabulary PART I noob Someone who knows little and has no will to learn any more. script kiddie Someone who relies on premade exploit programs and files (”scripts”) to conduct his hacking, and refuses to bother to learn how they work. lamer A person who knows little and uses nukes to do his work cracker Someone who uses software cracking to modify a program.
- 38. Introduction System Protection Malware Cyber-security Finale Vocabulary PART I noob Someone who knows little and has no will to learn any more. script kiddie Someone who relies on premade exploit programs and files (”scripts”) to conduct his hacking, and refuses to bother to learn how they work. lamer A person who knows little and uses nukes to do his work cracker Someone who uses software cracking to modify a program. Warez Copyrighted works distributed without fees or royalties, and may be traded, in general violation of copyright law.
- 39. Introduction System Protection Malware Cyber-security Finale Vocabulary Part II
- 40. Introduction System Protection Malware Cyber-security Finale Vocabulary Part II warez d00dz Are part of the darkest internet subculture. They usually copy the warez from their own software, breaking copy protection if need be.
- 41. Introduction System Protection Malware Cyber-security Finale Vocabulary Part II warez d00dz Are part of the darkest internet subculture. They usually copy the warez from their own software, breaking copy protection if need be. Guru An authority on computers and computing.
- 42. Introduction System Protection Malware Cyber-security Finale Vocabulary Part II warez d00dz Are part of the darkest internet subculture. They usually copy the warez from their own software, breaking copy protection if need be. Guru An authority on computers and computing. Poser One who tries to fit in but with exaggeration; pretends to be someone whose not.
- 43. Introduction System Protection Malware Cyber-security Finale Vocabulary Part II warez d00dz Are part of the darkest internet subculture. They usually copy the warez from their own software, breaking copy protection if need be. Guru An authority on computers and computing. Poser One who tries to fit in but with exaggeration; pretends to be someone whose not. Leecher In the context of to peer to peer file sharing protocols, or networks (e.g., Bittorrent), someone who consumes bandwidth by downloading, yet has no will to upload or give back to a community.
- 44. Introduction System Protection Malware Cyber-security Finale Hackers…
- 45. Introduction System Protection Malware Cyber-security Finale Hackers… The population pyramid of potential Information System attackers AVERAGE NONSKILLED USER NOOB KIDDIE SCRIPTER LAMER CRACKER PHREAKS/WAREZ D00DZ HACKER GURU >25,000 >50,000 <8,000 <3,000 <500 <150 POSER/WANNABEE LEECHER Population/10,000,000
- 46. Introduction System Protection Malware Cyber-security Finale Hacker Manners
- 47. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html).
- 48. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux).
- 49. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux). Always two there are a master and an apprentice (Yoda syntax!).
- 50. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux). Always two there are a master and an apprentice (Yoda syntax!). Exchange knowledge with knowledge or zero date exploits with remote access.
- 51. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux). Always two there are a master and an apprentice (Yoda syntax!). Exchange knowledge with knowledge or zero date exploits with remote access. Follow strategy and protection measures (e.g., connect from owned IP)
- 52. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux). Always two there are a master and an apprentice (Yoda syntax!). Exchange knowledge with knowledge or zero date exploits with remote access. Follow strategy and protection measures (e.g., connect from owned IP) They do not portscan or sniff or expose themselves to danger. They have lamers for this.
- 53. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux). Always two there are a master and an apprentice (Yoda syntax!). Exchange knowledge with knowledge or zero date exploits with remote access. Follow strategy and protection measures (e.g., connect from owned IP) They do not portscan or sniff or expose themselves to danger. They have lamers for this. They never delete systems, only deface and install rootkits or backdoors.
- 54. Introduction System Protection Malware Cyber-security Finale Hacker Manners They use Jargon (http://www.catb.org/jargon/html/go01.html). The use nicknames from irc channesl (#hack or #linux). Always two there are a master and an apprentice (Yoda syntax!). Exchange knowledge with knowledge or zero date exploits with remote access. Follow strategy and protection measures (e.g., connect from owned IP) They do not portscan or sniff or expose themselves to danger. They have lamers for this. They never delete systems, only deface and install rootkits or backdoors. Maintain low profile and utilize social engineering techniques.
- 55. Introduction System Protection Malware Cyber-security Finale Malware or more …ware!
- 56. Introduction System Protection Malware Cyber-security Finale Malware or more …ware! Computer Virus A binary patch set to a system’s executable file “accidentally” by an administrator role.
- 57. Introduction System Protection Malware Cyber-security Finale Malware or more …ware! Computer Virus A binary patch set to a system’s executable file “accidentally” by an administrator role. Worm Something similar to a virus by design and is considered to be a sub-class of a virus. Also, a worm has the capability to travel without any human “intervention.”
- 58. Introduction System Protection Malware Cyber-security Finale Malware or more …ware! Computer Virus A binary patch set to a system’s executable file “accidentally” by an administrator role. Worm Something similar to a virus by design and is considered to be a sub-class of a virus. Also, a worm has the capability to travel without any human “intervention.” Spyware Software that aims to gather information about a person or force a person visit specific web, view ads using popup windows sites or metasearch engines.
- 59. Introduction System Protection Malware Cyber-security Finale Malware or more …ware! Computer Virus A binary patch set to a system’s executable file “accidentally” by an administrator role. Worm Something similar to a virus by design and is considered to be a sub-class of a virus. Also, a worm has the capability to travel without any human “intervention.” Spyware Software that aims to gather information about a person or force a person visit specific web, view ads using popup windows sites or metasearch engines. Trojans A type of malware that is often disguised as legitimate software. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems.
- 60. Introduction System Protection Malware Cyber-security Finale Malware or more …ware! Computer Virus A binary patch set to a system’s executable file “accidentally” by an administrator role. Worm Something similar to a virus by design and is considered to be a sub-class of a virus. Also, a worm has the capability to travel without any human “intervention.” Spyware Software that aims to gather information about a person or force a person visit specific web, view ads using popup windows sites or metasearch engines. Trojans A type of malware that is often disguised as legitimate software. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Exploit A small program (source code) that uses a system’s vulnerability in order to gain unauthorized access to IS resources
- 61. Introduction System Protection Malware Cyber-security Finale Types of Exploits
- 62. Introduction System Protection Malware Cyber-security Finale Types of Exploits Local exploits Applicable when the program requires local system user access.
- 63. Introduction System Protection Malware Cyber-security Finale Types of Exploits Local exploits Applicable when the program requires local system user access. Remote exploits Applicable when the program requires only service connection or service user access.
- 64. Introduction System Protection Malware Cyber-security Finale Types of Exploits Local exploits Applicable when the program requires local system user access. Remote exploits Applicable when the program requires only service connection or service user access. Zero date When the code is published in the Internet is less that 3 months time.
- 65. Introduction System Protection Malware Cyber-security Finale Types of Trojans
- 66. Introduction System Protection Malware Cyber-security Finale Types of Trojans Root kit A collection of programs that enable administrator-level access to a computer or computer network.
- 67. Introduction System Protection Malware Cyber-security Finale Types of Trojans Root kit A collection of programs that enable administrator-level access to a computer or computer network. Backdoor A method, often secret, of bypassing normal authentication in a product, computer system, cryptosystem or algorithm etc.
- 68. Introduction System Protection Malware Cyber-security Finale Types of Trojans Root kit A collection of programs that enable administrator-level access to a computer or computer network. Backdoor A method, often secret, of bypassing normal authentication in a product, computer system, cryptosystem or algorithm etc. Fake Antivirus It masquerades as legitimate software, but is actually a malicious program that extorts money from you to “fix” your computer.
- 69. Introduction System Protection Malware Cyber-security Finale Types of Trojans Root kit A collection of programs that enable administrator-level access to a computer or computer network. Backdoor A method, often secret, of bypassing normal authentication in a product, computer system, cryptosystem or algorithm etc. Fake Antivirus It masquerades as legitimate software, but is actually a malicious program that extorts money from you to “fix” your computer. Spy Trojans Usaually a standalone program that allows a hacker to monitor user’s activities on an infected computer. Typically, they capture screen, keyboard, I/O operations.
- 70. Introduction System Protection Malware Cyber-security Finale Types of Trojans Root kit A collection of programs that enable administrator-level access to a computer or computer network. Backdoor A method, often secret, of bypassing normal authentication in a product, computer system, cryptosystem or algorithm etc. Fake Antivirus It masquerades as legitimate software, but is actually a malicious program that extorts money from you to “fix” your computer. Spy Trojans Usaually a standalone program that allows a hacker to monitor user’s activities on an infected computer. Typically, they capture screen, keyboard, I/O operations. Trojans to hide Trojans Malicious software that hides itself, so its activity doesn’t appear in the list of processes.
- 71. Introduction System Protection Malware Cyber-security Finale Types of Trojans Root kit A collection of programs that enable administrator-level access to a computer or computer network. Backdoor A method, often secret, of bypassing normal authentication in a product, computer system, cryptosystem or algorithm etc. Fake Antivirus It masquerades as legitimate software, but is actually a malicious program that extorts money from you to “fix” your computer. Spy Trojans Usaually a standalone program that allows a hacker to monitor user’s activities on an infected computer. Typically, they capture screen, keyboard, I/O operations. Trojans to hide Trojans Malicious software that hides itself, so its activity doesn’t appear in the list of processes. OS kernel module Trojans A kind of Trojan horse which combines with kernel Rootkit technologies.
- 72. Introduction System Protection Malware Cyber-security Finale Network Security Malware
- 73. Introduction System Protection Malware Cyber-security Finale Network Security Malware Port scanners (which posts are open?) and TCP Fingerprinters (Detecting remote OS and its version).
- 74. Introduction System Protection Malware Cyber-security Finale Network Security Malware Port scanners (which posts are open?) and TCP Fingerprinters (Detecting remote OS and its version). Magic Packet Activated Backdoor The backdoor opens a port, executes a signle command, initiates a session or perform some other action when it received a single magic packet.
- 75. Introduction System Protection Malware Cyber-security Finale Network Security Malware Port scanners (which posts are open?) and TCP Fingerprinters (Detecting remote OS and its version). Magic Packet Activated Backdoor The backdoor opens a port, executes a signle command, initiates a session or perform some other action when it received a single magic packet. IP Address Spoofing A hijacking technique in which a cracker masquerades as a trusted host to conceal his identity (e.g., sending e-mail from…NASA!).
- 76. Introduction System Protection Malware Cyber-security Finale Network Security Malware Port scanners (which posts are open?) and TCP Fingerprinters (Detecting remote OS and its version). Magic Packet Activated Backdoor The backdoor opens a port, executes a signle command, initiates a session or perform some other action when it received a single magic packet. IP Address Spoofing A hijacking technique in which a cracker masquerades as a trusted host to conceal his identity (e.g., sending e-mail from…NASA!). Synchronize Packet Flood A cracker sends many connection requests in a rapid pace without responding. This activity leaves the first packet in the buffer so that other legitimate connection requests cannot be completed
- 77. Introduction System Protection Malware Cyber-security Finale Network Security Malware Port scanners (which posts are open?) and TCP Fingerprinters (Detecting remote OS and its version). Magic Packet Activated Backdoor The backdoor opens a port, executes a signle command, initiates a session or perform some other action when it received a single magic packet. IP Address Spoofing A hijacking technique in which a cracker masquerades as a trusted host to conceal his identity (e.g., sending e-mail from…NASA!). Synchronize Packet Flood A cracker sends many connection requests in a rapid pace without responding. This activity leaves the first packet in the buffer so that other legitimate connection requests cannot be completed Sniffer A network sniffers monitors data flowing over computer network links.
- 78. Introduction System Protection Malware Cyber-security Finale Network Security Malware II
- 79. Introduction System Protection Malware Cyber-security Finale Network Security Malware II Man-in-the-middle Attacks type of cyberattack where a malicious actor inserts him/herself into a conversation between two parties, impersonates both parties and gains access to information that the two parties were trying to send to each other.
- 80. Introduction System Protection Malware Cyber-security Finale Network Security Malware II Man-in-the-middle Attacks type of cyberattack where a malicious actor inserts him/herself into a conversation between two parties, impersonates both parties and gains access to information that the two parties were trying to send to each other. Remote xploits Exploits done remotely by a cracker across the Internet or by a user’s having privileges on the system. Example: Fred Durst’s home computer was remotely attacked and someone made a copy of a 2003 three-minute private video in Durst’s possession.
- 81. Introduction System Protection Malware Cyber-security Finale Network Security Malware II Man-in-the-middle Attacks type of cyberattack where a malicious actor inserts him/herself into a conversation between two parties, impersonates both parties and gains access to information that the two parties were trying to send to each other. Remote xploits Exploits done remotely by a cracker across the Internet or by a user’s having privileges on the system. Example: Fred Durst’s home computer was remotely attacked and someone made a copy of a 2003 three-minute private video in Durst’s possession. Denial of Service (DoS) An attacker attempts to prevent legitimate users from accessing information or services. By targeting your computer and its network connection, or the computers and network of the sites you are trying to use, an attacker may be able to prevent you from accessing websites or other services that rely on the affected computer.
- 82. Introduction System Protection Malware Cyber-security Finale What is Cryptography?
- 83. Introduction System Protection Malware Cyber-security Finale What is Cryptography? Cryptography is the art and science of keeping information secure from unintended audiences.
- 84. Introduction System Protection Malware Cyber-security Finale What is Cryptography? Cryptography is the art and science of keeping information secure from unintended audiences. It is achieved by making information unintelligible.
- 85. Introduction System Protection Malware Cyber-security Finale What is Cryptography? Cryptography is the art and science of keeping information secure from unintended audiences. It is achieved by making information unintelligible. Here is how it works: plaintext encryption ciphertext decryption plaintext Example: Caesar’s cipher is a type of substitution cipher in which each letter in the plaintext is “shifted” a certain number of places down the alphabet. For instance the word “Lillija” is ecrypted as “Uruursj” if we shift 9 places.
- 86. Introduction System Protection Malware Cyber-security Finale What is Cryptography? Cryptography is the art and science of keeping information secure from unintended audiences. It is achieved by making information unintelligible. Here is how it works: plaintext encryption ciphertext decryption plaintext Example: Caesar’s cipher is a type of substitution cipher in which each letter in the plaintext is “shifted” a certain number of places down the alphabet. For instance the word “Lillija” is ecrypted as “Uruursj” if we shift 9 places. Post-quantum cryptography.
- 87. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures
- 88. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date.
- 89. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software.
- 90. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software. Gather Information about zero day threats:
- 91. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software. Gather Information about zero day threats: http://www.symantec.com/security_response/
- 92. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software. Gather Information about zero day threats: http://www.symantec.com/security_response/ http://www.esecurityplanet.com/
- 93. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software. Gather Information about zero day threats: http://www.symantec.com/security_response/ http://www.esecurityplanet.com/ http://www.securityfocus.com/
- 94. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software. Gather Information about zero day threats: http://www.symantec.com/security_response/ http://www.esecurityplanet.com/ http://www.securityfocus.com/ Periodically use vulnerability scanner software:
- 95. Introduction System Protection Malware Cyber-security Finale System Security Countermeasures Keep The Operating System up to date. Depending on your OS install antivirus software. Gather Information about zero day threats: http://www.symantec.com/security_response/ http://www.esecurityplanet.com/ http://www.securityfocus.com/ Periodically use vulnerability scanner software: http://sectools.org/tag/vuln-scanners/
- 96. Introduction System Protection Malware Cyber-security Finale Network Security Countermeasures
- 97. Introduction System Protection Malware Cyber-security Finale Network Security Countermeasures Use custom configured firewall that filters traffic.
- 98. Introduction System Protection Malware Cyber-security Finale Network Security Countermeasures Use custom configured firewall that filters traffic. Use port sensitive sniffers (port sentry) to detect scanners.
- 99. Introduction System Protection Malware Cyber-security Finale Network Security Countermeasures Use custom configured firewall that filters traffic. Use port sensitive sniffers (port sentry) to detect scanners. Check thoroughly network services configuration.
- 100. Introduction System Protection Malware Cyber-security Finale Network Security Countermeasures Use custom configured firewall that filters traffic. Use port sensitive sniffers (port sentry) to detect scanners. Check thoroughly network services configuration. Update services and check shared service resources permissions
- 101. Introduction System Protection Malware Cyber-security Finale Network Security Countermeasures Use custom configured firewall that filters traffic. Use port sensitive sniffers (port sentry) to detect scanners. Check thoroughly network services configuration. Update services and check shared service resources permissions Use Network Intrusion Detection System to catch threats targeting your vulnerable systems.
- 102. Introduction System Protection Malware Cyber-security Finale Finale!
- 103. Introduction System Protection Malware Cyber-security Finale Finale! We presented
- 104. Introduction System Protection Malware Cyber-security Finale Finale! We presented general information about IS;
- 105. Introduction System Protection Malware Cyber-security Finale Finale! We presented general information about IS; what system protection means;
- 106. Introduction System Protection Malware Cyber-security Finale Finale! We presented general information about IS; what system protection means; the various forms of malware;
- 107. Introduction System Protection Malware Cyber-security Finale Finale! We presented general information about IS; what system protection means; the various forms of malware; advice on cyber-security.
- 108. Introduction System Protection Malware Cyber-security Finale Finale! We presented general information about IS; what system protection means; the various forms of malware; advice on cyber-security. Thank you very much for your attension!