Basic Computer Security for Doctors
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The document provides an overview of computer viruses, detailing their definition, potential effects, and common entry methods. It emphasizes the importance of antivirus software for protection and offers tips for prevention, as well as recommendations for both free and paid antivirus options. Additionally, it outlines steps for downloading, installing, and utilizing antivirus programs effectively.
Basic Computer Security for Doctors
- 1. Plus91 Technologies Pvt. Ltd. Adding Value to Healthcare Antiviruses & Computer Security 101
- 2. What is a Computer Virus? • A computer program that can replicate itself and spread from one computer to another. • It might corrupt or delete data on your computer • It might use your email program to spread itself to other computer • It may even erase everything on your hard disk.
- 3. Viruses are evil… • Viruses can take control of Your Computers if not guarded against • Such controlled machines are called zombies. • They then try to spread to other computers, creating a network called “botnet” • Over 8 Lakh bot infected computers in India • Botnets are used by cybercriminals to send spam, steal information and launch 'denial of service' attacks, in which all the zombies access one website at once, forcing it offline. 3
- 4. Some terms you may have heard • Probing - Scanning the ports of the computer to find vulnerabilities • Trojans - Software which hides inside known programs and so gets installed/run by the user • Spyware - Software which collects information without the users knowledge • Phishing – Pretending to be a useful /popular digital source so as to trick users into providing sensitive information 4
- 5. Common ways viruses enter your PC? • Infected USB flash drives • Trojans in Freely available software from untrusted sites • Clicking on links in suspicious emails • Clicking on links at untrusted sites especially those catering to lotto, adult content, free downloads for songs, movies, games and TV shows 5
- 6. Indicators that your PC might be infected • The PC runs more slowly than normal • The PC stops responding or freezes often • The PC crashes and restarts every few minutes • The PC restarts on its own and then fails to run normally • Applications on your PC don't work correctly • Disks or disk drives are inaccessible • You can't print correctly • You see unusual error messages • You see distorted menus and dialog boxes 6
- 7. The effect of Viruses on you? • Damage your files leading to Loss of Personal Data • Slows down your PC by eating into the RAM and Processor Time • Uses up internet bandwidth leading to frustration when surfing and checking email • Trojans end up taking control of your PC which may then be used for hacking, terrorist emails, spamming 7
- 8. The effect of Viruses on your Practice • Damaged Files lead to loss of Practice & Patient Data • Slower Access to Hospital/Clinic Software • Spam Sending will ensure that even useful mails send to other doctors and patients will be delivered in their spam folders • Increased cost on IT infrastructure in your practice as regular maintenance of PCs will be required • Random PC behavior will frustrate you and make it impossible for you to work 8
- 9. Simple Prevention Tips • Use an Antivirus • Scan all external devices before use • Avoid downloading files with extensions like .exe, .msi, .bat unless you trust the source • Schedule Anti virus scans to run every week • Update anti virus definitions regularly • Don’t click on links in emails from unknown sources • Use a Firewall • Be careful about what personal information you give out online. 9
- 10. Your friend – The Antivirus • An Antivirus is a computer program which prevents against, detects and removes viruses • It helps to protect computers from both common and rare computer viruses • Also protect against – Worms – Spyware – Trojans – Corrupt Adware
- 11. Which one to use • There are numerous anti viruses in the market • Paid Options as well as Free Options • Qualifying Factors besides Price – Updates – Strength of Protection – Resource Usage – Ease of Use 11
- 12. Our Suggestions Free Options 1. Avast: http://www.avast.com/index 2. Free AVG: http://free.avg.com/in-en/homepage 3. Avira: www.avira.com/en/avira-free-antivirus 4. PC Tools Free: http://www.pctools.com/free-antivirus/index/d/2 5. Windows Security Essentials : http://windows.microsoft.com/mse Paid Options 1. Bit Defender: http://www.bitdefender.in 2. Quick Heal: http://www.quickheal.com/ 3. Kaspersky: http://www.kaspersky.com/ 4. Norton: http://in.norton.com/ 5. Eset Nod32: http://www.esetindia.com/ 12
- 13. TODO: How to use an AntiVirus In the next few slides • Hands on Using a good Free Anti-Virus Avast • Manage regular scans • Download upgrades when prompted to be able to fight even the latest viruses • Follow instructions when deleting corrupt files 13
- 14. TODO: How to download the Anti-virus • Go to URL: http://www.avast.com/free-antivirus- download • Click on Download button under the free option • Follow the steps and complete the download on the CNET site • Go to: http://www.avast.com/registration-free- antivirus.php and register yourself, a key will be emailed to you 14
- 15. TODO: How to install the Anti-virus • Once the download is complete click on setup file • Install the Anti-virus by following the steps, ensure that all the default options are checked • Select the “Silent/Gaming Mode” so that the Anti-virus works only in the background • Ensure the Real-Time Shields are on 15
- 16. TODO: How to use the Anti-virus • Summary gives an overview of the Status of what shields are on and if threats are present • Scan Computer allows you to select and scan: • Quick Scan – Just Core Windows and Document of the PC • Full Scan – Each every file in the PC or drive • Removable Media – Attached Hard Disk, Pen drive, etc • Select Folder – Single Folder in the PC • Real time shields protect the PC on the go, when downloading files, sending emails etc – Unless you’re an expert or need one to be turned off to run a trusted software leave them on! • Maintenance allows you to ensure the software is up to date 16
- 17. TODO: Tips for the Anti-virus • Allow the Anti-virus to update its repository regularly by connecting to the internet • Schedule regular scans: Click -Scan Now then under full system scan click-Settings ,go to “Schedule” • Keep a check on Validity Period and re-register if expired 17
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