Recovery

Backups and incident response for AI-assisted ransomware

The NCSC lists protecting backups and rehearsing incident response among the immediate priorities. Faster attacks leave less room to improvise.

Last reviewed against National Cyber Security Centre, SecurityWeek and Cyber Security News. Sources

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Priorities

What the NCSC lists

Reporting of the review gives the immediate priorities as maintaining an accurate view of systems, patching exposed services, controlling account access, protecting backups and rehearsing incident response [7]. Reporting of the NCSC chief's advice adds that organisations should invest in monitoring so failures are detected early [8].

A rehearsal

Steps to test the plan

  1. 1

    Name the incident lead and a deputy, and record how to reach them out of hours.
  2. 2

    Decide who can authorise taking systems offline.
  3. 3

    Check that a backup exists that your administrator accounts cannot delete.
  4. 4

    Restore one important system from backup and record what went wrong.
  5. 5

    Agree who tells staff, customers, regulators and insurers, and in what order.

Limits

What insurance cannot do

Insurance cannot be your plan. Reporting of the NCSC's advice says organisations should not rely on insurance to cover the consequences of an attack on essential services [8].

Speed is the point

The NCSC says AI is making attacks faster, cheaper and easier to carry out [7]. A plan that depends on working things out during the incident will be slow.

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After the test

Close the gaps

A rehearsal is only useful if its findings are fixed. Share the results with senior leaders in plain language, covering what worked, what failed and what it will cost to correct. Record each gap with an owner and a date, and repeat the exercise when systems or suppliers change. Include your suppliers, since the NCSC asks organisations to be able to deploy fixes across their supply chain [4] and to understand their supplier dependencies [7].

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Related

Where this fits

Recovery is the last of the steps in what to do. The routes that make recovery necessary are in the four routes attackers use.

How CyPro can help

Need a hand getting ready?

Reading the rules is one job. Mapping them to your organisation, closing the gaps and showing the evidence are several more. CyPro's consultants can take any of them off your plate.

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Need to know what this means for you?

The NCSC expects ransomware to get faster and cheaper to run. CyPro can help you plan and rehearse your response before an attack and take charge of containment and recovery if one happens.