In August of last year, Sophos X-Ops unveiled its approach to attribution: Rather than focusing on the “who” of attacks, Sophos X-Ops focuses on the “how.” By analyzing highly specific behavioral clues left behind by the attackers, we can find new links between threat activity clusters (TACs) to shorten two of the most critical pieces of responding to an attack: time to detect and time to respond.
On Monday this week, Sophos X-Ops' Morgan Demboski presented our threat activity cluster system at the SANS Cyber Threat Intelligence Summit, specifically as it relates to unraveling the complex underground ransomware network.
https://news.sophos.com/en-us/2023/08/08/enough-attribution-to-count/