Cephalus ransomware: What you need to know www.fortra.com/blog/ceph…

Cephalus is a relatively new ransomware operation that emerged in mid-2025, and has already been linked to a wave of high-profile data leaks.

Like many other ransomware attacks, Cephalus not only encrypts but also steals sensitive data - with victims named-and-shamed on a dedicated leak site hosted on the dark web.