Practical advice for cloud data protection ulf mattsson - oracle nyoug sep 2014
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The document discusses practical advice for cloud data protection, highlighting concerns such as data loss, insecure interfaces, and lack of confidence in cloud services. It emphasizes the need for robust data security measures, including encryption, tokenization, and data anonymization, to ensure sensitive information is protected throughout its lifecycle in the cloud. The content also outlines the various cloud computing models and governance, risk management, and compliance considerations relevant to organizations adopting cloud solutions.
Practical advice for cloud data protection ulf mattsson - oracle nyoug sep 2014
- 1. Practical Advice for Cloud Data Protection Ulf Mattsson CTO, Protegrity Ulf.Mattsson@protegrity.com
- 2. Ulf Mattsson, Protegrity CTO Cloud Security Alliance (CSA) PCI Security Standards Council • Cloud & Virtualization SIGs • Encryption Task Force • Tokenization Task Force ANSI X9 • American National Standard for Financial Services IFIP WG 11.3 Data and Application Security • International Federation for Information Processing ISACA (Information Systems Audit and Control Association) ISSA (Information Systems Security Association) 2
- 3. Security - We Are Losing Ground “It’s clear the bad guys are winning at a faster rate than the good guys 3 are winning, and we’ve got to solve that.” - 2014 Verizon Data Breach Investigations Report Source: searchsecurity.techtarget.com/news/2240215422/In-2014-DBIR-preview-Verizon-says-data-breach-response-gap-widening
- 4. Security - We Are Losing Ground – Cloud is Next “…Even though security is improving, things are getting worse faster, so 4 we're losing ground even as we improve.” - Security expert Bruce Schneier Source: http://www.businessinsider.com/bruce-schneier-apple-google-smartphone-security-2012-11
- 5. Key Topics What are the Concerns with Cloud? What is the Guidance for Cloud Data Security? What New Data Security Technologies are Available for Cloud? How can Cloud Data Security work in Context to the Enterprise? What are the Common Use Cases? How can Search and Indexing be Performed? 5
- 6. What are the Concerns with Cloud? 6
- 7. What Is Your No. 1 Issue Slowing Adoption of Public Cloud Computing? 7
- 8. Sensitive Data in the Cloud 8 Of organizations currently (or plan to) transfer sensitive/confidential data to the cloud in the next 24 mo.
- 9. Lack of Cloud Confidence 9 Number of survey respondents that either agree or are unsure that the cloud services used by their organization are NOT thoroughly vetted for security.
- 10. Stopped or Slowed Adoption Source: The State of Cloud Security 10 Blue: Most recent data
- 11. Data Loss & Insecure Interfaces Number of Cloud Vulnerability Incidents by Threat Category 11
- 12. What is Cloud Computing? Computing as a Service: • Software as a Service (SaaS) • Platform as a Service (PaaS) • Infrastructure as a Service (IaaS) Delivered Internally or Externally to the Enterprise: • Public • Private • Community • Hybrid 12
- 13. Public Cloud 13
- 14. Public Cloud 14
- 15. Private Cloud Outsourced Private Cloud 15 On-site Private Cloud
- 16. On-site Community Cloud 16
- 17. Outsourced Community Cloud 17
- 18. Hybrid Cloud 18
- 19. Software as a Service (SaaS) Typically web accessed internet-based applications (“on-demand software”) Platform as a Service (PaaS) An internet-based computing platform and solution stack. Facilitates deployment of Service Orchestration Applications Databases Storage 19 applications at much lower cost and complexity Infrastructure as a Service (IaaS) Delivers computer infrastructure (typically a virtualized environment) along with raw storage and networking built-in
- 20. The Conceptual Reference Model 20
- 21. Governance, Risk Management and Compliance 21
- 22. Trust vs. Elasticity Corporate Network Trust Private Cloud 022 Elasticity Public Cloud
- 23. Public Cloud – No Control 23 Consumers have no control over security once data is inside the public cloud. Completely reliant on provider for application and storage security.
- 24. Private Cloud – Limited Control Outsourced Private Cloud Consumer has limited capability to manage security within outsourced 24 On-site Private Cloud IaaS private cloud.
- 25. Threat Vector Inheritance 25
- 26. Virtualization Concerns in Cloud Virtual machine guest hardening Hypervisor security Inter-VM attacks and blind spots Performance concerns Operational complexity from VM sprawl Instant-on gaps Virtual machine encryption Data comingling Virtual machine data destruction Virtual machine image tampering In-motion virtual machines 26
- 27. 27
- 28. Mapping the Cloud Model to Security Control & Compliance AAAApppppppplllliiiiccccaaaattttiiiioooonnnnssss DDDDaaaattttaaaa 28
- 29. Governance, Risk Management and Compliance 29
- 30. Data Protection Solutions 30
- 31. Cloud Gateways Provide Enterprise Control Cloud Encryption Gateways • SaaS encryption Cloud Security Gateways • Policy enforcement Cloud Access Security Brokers (CASBs) Cloud Services Brokerage (CSB) Secure Email Gateways Secure Web gateway 31
- 32. Public Cloud Gateway – SaaS Example Cloud 032 Gateway
- 33. Security Gateway Deployment – Application Example Corporate Network Backend System Cloud Gateway External Service 033 Enterprise Security Administrator Security Officer
- 34. Example of Cloud Security Gateway Features High-Performance Gateway Architecture Enterprise-extensible platform Tokenization and encryption Enterprise-grade key management Flexible policy controls • File or Field Security • Advanced function & usability preservation Comprehensive activity monitoring & reporting Support for internal, remote & mobile users Multiple deployment options 34
- 35. Security Gateway Deployment – Database Example Corporate Network Backend System Cloud Gateway RDBMS 035 Enterprise Security Administrator Security Officer
- 36. Security Gateway Deployment – Indexing Corporate Network Backend System Cloud Gateway RDBMS Query re-write 036 Enterprise Security Administrator Security Officer Index Index
- 37. Security Gateway Deployment – Search Corporate Network Backend System Cloud Gateway RDBMS Query re-write 037 Enterprise Security Administrator Security Officer Order preserving encryption
- 38. Where is Encryption Applied to Protect Data in Cloud? 38
- 39. How Data-Centric Protection Increases Security in Cloud Computing and Virtualization Rather than making the protection platform based, the security is applied directly to the data, protecting it wherever it goes, in any environment Cloud environments by nature have more access points and cannot be disconnected – data-centric protection reduces the reliance on controlling the high number of access points 39
- 40. Encryption Guidance from CSA Encrypting the transfer of data to the cloud does not ensure the data is protected in the cloud Once data arrives in the cloud, it should remain protected both at rest and in use Do not forget to protect files that are often overlooked, but which frequently include sensitive information • Log files and metadata can be avenues for data leakage Encrypt using sufficiently durable encryption strengths (such as AES-256) Use open, validated formats and avoid proprietary encryption formats wherever possible 40
- 41. CSA: Look at Alternatives to Encryption Data Anonymization and De-identification • This is where (for example) Personally Identifiable Information (PII) and Sensitive are stripped before processing. Utilizing access controls built into the database 41
- 42. De-identification / Anonymization Field Real Data Tokenized / Pseudonymized Name Joe Smith csu wusoj Address 100 Main Street, Pleasantville, CA 476 srta coetse, cysieondusbak, CA Date of Birth 12/25/1966 01/02/1966 Telephone 760-278-3389 760-389-2289 E-Mail Address joe.smith@surferdude.org eoe.nwuer@beusorpdqo.org SSN 076-39-2778 076-28-3390 CC Number 3678 2289 3907 3378 3846 2290 3371 3378 Business URL www.surferdude.com www.sheyinctao.com Fingerprint Encrypted Photo Encrypted X-Ray Encrypted Healthcare / Financial Services Dr. visits, prescriptions, hospital stays and discharges, clinical, billing, etc. Financial Services Consumer Products and activities Protection methods can be equally applied to the actual data, but not needed with de-identification 42
- 43. Data Tokenization De-identification / Pseudonomization / Anonymization Replaces real data with fake data – “Tokens” Data is protected before it goes to the cloud Benefits: • Eliminates data residency issues • Data remains usable in applications without modification • Vaultless tokenization • No data replication/collision issues, • High scalability 43
- 44. Significantly Different Tokenization Approaches Vault-based Vaultless Property Dynamic Pre-generated 44
- 45. Risk Adjusted Protection Data Protection Methods Scalability Storage Security Transparency System without data protection Weak Encryption (1:1 mapping) Searchable Gateway Index (IV) Vault-less Tokenization Vault-based Tokenization Partial Encryption Data Type Preservation Encryption Strong Encryption (AES CBC, IV) Best Worst 45
- 46. Use Case - Commercial Information and Business Insight Company The company received trade files from customers daily, containing sensitive Card Holder Data (CHD), making them subject to Payment Card Industry Data Security Standard (PCI DSS) regulations. 46
- 47. Use Case - Increasing Pressure from International Data Protection Regulations
- 48. Enterprise Data Security Policy What is the sensitive data that needs to be protected. How you want to protect and present sensitive data. There are several methods for protecting sensitive data. Encryption, tokenization, monitoring, etc. Who should have access to sensitive data and who should not. Security access control. Roles & Users What How Who 48 When should sensitive data access be granted to those who have access. Day of week, time of day. Where is the sensitive data stored? This will be where the policy is enforced. Audit authorized or un-authorized access to sensitive data. When Where Audit
- 49. Centralized Policy Management - Example Application RDBMS MPP Audit Log Audit Log Audit Log Enterprise Security Administrator Policy Cloud Security Officer Audit Log Audit Log Audit Log 49 File Servers Big Data Gateway Servers HP NonStop Base24 IBM Mainframe Protector Audit Log Audit Log Audit Log Audit Log Protection Servers Audit Log Audit Log
- 50. Summary What are the Concerns with Cloud? How is Cloud Computing Defined? What is the Guidance for Cloud Data Security? What New Data Security Technologies are Available for Cloud? 50 How can Cloud Data Security work in Context to the Enterprise?
- 51. Thank you! Questions? Please contact us for more information www.protegrity.com Ulf.Mattsson@protegrity.com