Implementing Cyber Security Challenges
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Challenges in implementating cyber security
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Implementing Cyber Security Challenges
- 2. Challenges Environment Info Security Model Risk Management Survivability
- 4. Opportunity for Intrusion Rapid adoption of networks Exploitable vulnerabilities in technology Lack of awareness about info security Shortage of administrators, technical security staff Lack of applicable laws and means of enforcement
- 5. Intruders – Who they are ? Internal vs external Hackers, Crackers and Cyber Criminals Your own IT staff ?
- 8. Info States
- 11. Risk Management
- 12. Overview Risk Risk Constituents Risk Impact Risk Understanding Risk Exposure Risk Assessment Risk Management
- 13. Risk Risk is the possibility of suffering the loss, destruction, modification or denial of availability of an asset
- 15. Risk Impact Loss or compromise of critical information Loss or compromise of key technologies Loss of nations confidence Loss of trust in the network systems Loss of life or property
- 16. Understanding Risk Identifying and prioritising assets Relating threats and vulnerabilities Performing risk analysis Recognised risk must be managed Risk can be mitigated, but can not be eliminated
- 17. Assets Info assets Other supporting assets Critical assets
- 18. Info Assets Info Systems Services and applications People
- 20. Security Requirements Each asset has different requirements of Confidentiality Integrity Availability
- 21. Safeguards, Vulnerabilities and Threats Safeguard Vulnerability Threats Access control Firewalls ACLs Physical security Encryption Technologies Redundancy Software flaws Buffer Overflow Default cofiguration Lack of policies and procedures Intrusions Virus, worms and Trojan Horses DoS Sniffing and Spoofing Single point of failure
- 24. Risk Management ‘Risk Management is the process used to identify, analyse and mitigate the risk and provide strategies for sustaining the security requirements of an info asset’
- 25. Risk Management
- 26. Managing Risk
- 27. OCTAVE
- 28. OCTAVE- A Risk Assessment Method Operationally Critical Threat, Asset and Vulnerability Evaluation (OCTAVE) A Risk-based security assessment and planning technique for security Based on capturing organisations own knowledge of security practices and weaknesses Not executed by an outsider, consultant etc.
- 29. Founding Philosophy You can not mitigate all info security risks You have limited resources You can not prevent all determined incursions Enterprise survivability most imp
- 30. Threat Profile Asset Network Inside Outside Accidental Deliberate Interruption Loss / destruction Modification Disclosure Interruption Loss / destruction Modification Disclosure Asset Access Actor Motive Outcome Physical
- 31. Phase I - Asset What are the critical info assets in the org ? What is the threat to each critical asset ? What is currently being done to protect this asset ? What weaknesses in policy and practice exist in the org ? Asset Identification and Criticality
- 32. Phase II - Vulnerabilities How do people access each critical asset ? What infrastructure component are related to each asset ? What technological weaknesses expose your critical assets to threats ? Vulnerability Evaluation Strategy
- 33. Phase III - Threats What is the impact due to each threat ? What is the highest priority risk ? What policies and practices are needed to address these risks ? What technological weaknesses need to be addressed immediately ? Risk Impact Evaluation Criteria
- 35. Survivability The capability of the system to fulfill its mission, in a timely manner, in the presence of attacks, failure or accidents Survivability provides a new perspective to security From a narrow technical specialty Towards a risk management perspective
- 36. Info Assurance Info operations that protect and defend info and info systems by ensuring their availability, integrity and confidentiality. This includes providing for restoration of info systems by incorporating protection, detection and reaction capability.
- 37. Security vs. Survivability Security Survivability Focus on protecting Info Focus on continuity of operations Systems are bounded Systems are unbounded Considered an overhead expense Considered an investment Narrow technology based solution Part of Risk Management Protect system component Entire mission sustained
- 38. Layered Approach to Survivability Criticality of asset to the mission Identify risk associated with the asset Multiple layers of protections for survivability
- 39. IT Security System and network management System administration tools Monitoring and auditing IT security Authentication and authorisation Vulnerability management Encryption Security architecture and design
- 40. Anticipate Intrusion and Failures Contingency planning Disaster recovery Difference between natural disasters and disruptions due to cyber attacks ?
- 41. Protecting Info Assets- CERT Avoidance Prevention Detection Containment and Response Recovery Improvement
- 42. SKiP- Security Knowledge in Practice
- 43. Administrative Responsibilities Authorisation Authentication Accountability Monitoring Incident Response Damage Assessment and Recovery Analysis System life-cycle management Backup
- 44. Practice Vigilance Test systems before deployment Implement monitoring and logging Check integrity of files and directories Scan for Virus, Trojans and Worms Practice readiness to respond Keep patches up to date Raise user awareness
- 45. 1.POLICY Establish process, standards, and guidelines 2.INVENTORY Discover all assets across the network 3.PRIORITIZE Assign business value to assets 4.VULNERABILITIES Determine vulnerabilities on assets 5.THREATS View potential threats 10.COMPLIANCE Review for policy compliance 9.MEASURE Measure impact of security decisions and actions 8.REMEDIATION Proactively fix vulnerabilities 7.SHIELD Stop intrusion in real-time 6.RISK Determine risk level
- 46. Other Challenges Interoperability Time Synchronisation Crypto Systems Indigenous Operating Systems Own Standards Open Source
- 47. Thank You