The ransomware-as-a-service (RaaS) groups LockBit and ALPHV (aka BlackCat), among others, have been the focus of distributed denial-of-service (DDoS) attacks targeting their data leak sites, causing downtime and outages.

The attacks have been monitored by Cisco Talos since Aug. 20 and include a wide range of other RaaS groups, including Quantum, LV, Hive, Everest, BianLian, Yanluowang, Snatch, and Lorenz.

Forum posts by the LockBit gang’s technical support arm, “LockBitSupp,” indicate that the attacks have had a significant impact on the group’s activities, with nearly 1,000 servers targeting the leak site with close to 400 requests per second, researchers said.