August's Top Threat Actors: Ransomware, Espionage And Infostealers
Barracuda Networks, Friday, September 5th, 2025
Throughout the year we've observed ransomware attacks, data exfiltration and stealthy state-sponsored espionage. These are some of the most significant threats that surged in August 2025.
Qilin is a ransomware-as-a-service (RaaS) operation that we profiled in July. This Eastern European threat actor has become one of the world's most active and damaging ransomware groups. First observed as 'Agenda' in mid-2022, it was fully rebranded as Qilin by September 2022.