The Petya ransomware is still spreading globally, and a kill switch has yet to be found. However, researcher Amit Serper may have found a vaccine for uninfected computers. By creating a read-only file in the Windows folder, the virus will exit and not encrypt the computer. This is a preventative measure, not a permanent solution. Those already infected will likely not be able to retrieve their files.

The trust deficit in CNI: How to address a growing concern
The growing integration of digital systems into critical infrastructure opens up new vulnerabilities to cyber threats. High interconnectivity between various national infrastructure systems (transport, healthcare,