Ransomware Operators Disable EDR, Backup Software and Windows Telemetry Before Encryption

Ransomware crews are increasingly trying to blind a victim before they encrypt anything. Analysis shows that attackers can disable endpoint detection and response tools, interrupt Windows telemetry, and target backup services to reduce the chance that defenders spot or contain the intrusion in time. The findings focus on ten ransomware families that were least often prevented in 2026 testing data. Play had the lowest prevention score at 13 percent, followed by BlackByte at 25 percent, while LockBit, BabLock, Magniber, FAUST, Sodinokibi or REvil, Hive, BlackKingdom, and Maori also featured in the group. Analysts at Picus Security identified a shared pattern: ransomware operators rely on stealth and defense-impairment methods...

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