The National Cyber Security Centre (NCSC) issued updated guidance urging organisations to bolster their cyber security resilience in response to malicious cyber incidents in Ukraine. Whilst no specific cyber threat to UK organisations in relation to events in Ukraine has yet been identified, the guidance offers a series of actionable steps that companies should take to reduce the likelihood of falling victim to a future attack. A further set of NCSC guidance on maintaining a sustainable, strengthened cyber security posture was issued in July 2022.
NPSA have also compiled the following guides for UK organisations:

Guidance
This guidance can help keep you and your organisations safe during this time of conflict

Guidance
Understand how physical security measures may enhance protection against the threat posed by state actors

Guidance
Useful guidance for organisations to follow during times of political instability and conflict

Information
The following guides provide an overview of the threat that state actors may pose to CNI, which is anticipated to be heightened during this time