Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Information Security Management Goes Global Ted Humphreys XiSEC Business continuity Corporate governance Compliance with legislation Information assets Policy & procedures Management of risk Incident handling Best practice Protecting on-line business Managing 3 rd party access

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Information Security Management Ensuring business continuity These global objectives of information security management are also stated in ISO/IEC Minimise business damage Maximise return on investments Global Business Objectives

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Information Security Management Achieving the objectives by managing the risk

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Assessing the Risk Risk is the potential that a threat will exploit a vulnerability and cause damage or loss to an asset The assessment includes: –the value of the asset –the level of corresponding vulnerabilities –the likelihood of the relevant threats –existing and planned controls which protect the asset

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Managing the Risks Expenditure on information security needs to be balanced against and appropriate to –The business value of the information and other business assets at risk, and –The business harm/impact likely to result from security failures

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Managing the Risk Risk acceptance Ignoring the risks Risk avoidance Risk transfer Risk reduction

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Managing the Risks with Controls Reduce the vulnerabilities –Reduce/eliminate the weaknesses Reduce the likelihood of occurrence –Reduce/eliminate the cause –Minimise the probability by preventative measures Reduce the consequences of impact –Ensuring effective monitoring –Taking steps to prevent, minimise or contain impact.

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Information Security Management Preserving the Confidentiality, Integrity/ authenticity & Availability of information Targets Access control, user identification & authentication, encryption, digital signatures,message authentication, backups, capacity planning, regular maintenance, virus protection software, information handing procedures, physical security etc Means of achieving targets

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys What is ISO/IEC 17799? Its a standard on best practice for information security management A risk based approach for defining policy & procedures & selection of appropriate controls to manage risk NOT IT Security Its about Information Security

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Who looks after ISO/IEC 17799? is managed and maintain by ISO/IEC JTC 1/ SC 27 WG1 WG1 Convenor Ted Humphreys Editors Angelika Plate and Oliver Weissmann

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Some ISO/IEC History BS 7799 Part 1: 1999 BS 7799 Part 1: 1995 ISO/IEC 17799: 2000 WG1 managing 1st revision due 200x

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Whats in ISO/IEC 17799? Security policy Security organisation Asset classification & control Business continuity Personnel security Physical & environmental security Access control Compliance Communications & operations management Systems development & maintenance The Chapters Security policy Security organisation Asset classification & control Business continuity Personnel security Physical & environmental security Access control Compliance Communications & operations management Systems development & maintenance

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Chapter Structure Control Objective Control Implementation Guidance Other Information Control satisfies the requirements of the objective Advice and help on implementation of the control Other supporting help and information

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Control Example External facilities management Control Implementation Guidance Other Information The risks of using external facilities management services should be identified in advance, and appropriate controls agreed with the contractor, and incorporated into the contract. Particular issues that should be addressed include: a) I dentifying sensitive or critical applications better retained in-house, b) O btaining the approval of business application owners, c) I mplications for business continuity plans, d) S ecurity standards to be specified, and the process for measuring compliance, e) A llocation of specific responsibilities and procedures to effectively monitor all relevant security activities,responsibilities and procedures for reporting and handling security incidents The use of an external contractor to manage information processing facilities may introduce potential security exposures, such as the possibility of compromise, damage, or loss of data at the contractors site. See also and 4.3 for guidance on third party contracts involving access to organizational facilities and outsourcing contracts

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Information security policy Access control Use of , Internet services & network connections Use of mobile computing ISO/IEC Policies & Procedures

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Policies & Procedures Security incident handling Business continuity Operational procedures Change control Housekeeping Information handling System acceptance

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Organisational Security To manage information security within the organisation –Security Forum –Allocation of roles and responsibilities –Co-ordination –Security of 3 rd party access Outsourcing, managed services etc Security conditions in contracts

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Asset Control Accountability of assets –To maintain an asset inventory –Information classification –Information handling procedures –Maintain appropriate protection of assets –Asset ownership and security responsibilities Delegation & accountability Outsourcing, managed services etc

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Operations Management Procedures to ensure correct and secure operation –Minimise the risk of system failures –Safeguard the integrity of company information and software –Maintain the integrity and availability of company services

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Ensure the protection of supporting system and networking infrastructures Prevent damage to computer media Incident management procedures System and capacity planning and acceptance Malicious software Backups ISO/IEC Operations Management

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC – Security Incidents Responding to incidents –To minimise the damage from security incidents, system malfunctions, software weaknesses, virus attacks, denial of service attacks, breaches of law, data theft etc –Monitoring, detecting, reporting, responding to and learning from security incidents

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Controlling Access To control access to the companys information based on agreed access control policy and procedures –User access management –User registration –User responsibilities, rights and privileges, review

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Access policy, procedures and technical controls –Network services (internal and external), Web sites etc –Computer systems –Applications –On-site and off-site (remote) access –Monitoring system access and use ISO/IEC Controlling Access

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Systems Dev/Maintenance Building security into the companys systems and processes –Application systems Input/output data validation Internal processing validation Cryptographic mechanisms Non-cryptographic mechanisms

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Building security into the companys systems and processes –System files Control of software and protection of test data –Development and support environments Change control procedures Review of operating system changes Restrictions on software changes ISO/IEC Systems Dev/Maintenance

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Business Continuity To protect critical company processes and assets and to counteract interruptions to business activities from the effects of system failures, serious breaches of security, disasters etc

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys A managed planning process should be in place –Procedures (for handling customers/suppliers, relocation, emergency control, fallback, resumption and recovery etc) should be developed and regularly tested –Plans and procedures should be regularly reviewed and updated as necessary ISO/IEC Business Continuity

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys ISO/IEC Compliance Compliance with legislation and contractual requirements –To avoid breaches of any statutory, criminal or civil obligations and related security requirements

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys In Summary - Why use ISO/IEC 17799? Ensure business continuity Minimise business damage & protect business assets Maximise return on investments & business opportunities Good corporate governance –fit to manage risk

Copyright © XiSEC, All rights reserved, 2002 Secure Computing Best Lifetime Achievement Award 2002 Ted Humphreys Q&A La sécurité informatique Riktlinjer för ledning av informationssäkerhet Leitfaden zum Management von Informationssicherheit Managementsystem voor informatiebeveiliging Gestão da Segurança da Informação