A recent Kyber ransomware campaign has been targeting Windows systems and VMware ESXi endpoints, with a notable variant incorporating Kyber1024 post-quantum encryption. This development signals a potential shift in ransomware tactics, as threat actors explore the use of advanced encryption methods. The implementation of post-quantum encryption, such as Kyber1024, poses significant challenges for decryption and recovery efforts, underscoring the need for robust operational resilience planning. The Kyber ransomware gang's experimentation with post-quantum encryption on Windows systems highlights the evolving nature of cyber threats and the importance of staying ahead of emerging risks1. As the cybersecurity landscape continues to adapt to new threats, the incorporation of post-quantum encryption by ransomware groups like Kyber serves as a stark reminder of the need for proactive planning and preparedness. This matters to practitioners because it underscores the importance of developing strategies to mitigate the impact of sophisticated ransomware attacks that leverage cutting-edge encryption techniques.