"We have no evidence that the Russian state intends to suborn Russian commercial products and services to cause damage to UK interests, but the absence of evidence is not evidence of absence. The war has proven many widely-held beliefs wrong and the situation remains highly unpredictable. In our view, it would be prudent to plan for the possibility that this could happen. In times of such uncertainty, the best approach is to make sure your systems are as resilient as you can reasonably make them.
...
Individuals using Kaspersky AV
We've had enquiries from people worried about their home IT. It almost certainly remains the case that nearly all
individuals in the UK (and many enterprises) are
not going to be targeted by Russian cyber attack, regardless of whether they use Russian products and services.
If your personal laptop uses Kaspersky AV (or other products):
- it's highly unlikely to be directly targeted
- it’s safe to turn on and use at the moment
However, you may need to move to a new AV product if Kaspersky itself becomes subject to sanctions, since the AV product would likely stop getting updates (and AV software is only effective if
it's updated regularly)."