Proofpoint Research Finds 65% of Organizations Affected by Ransomware Say AI Made Attacks More Effective

Proofpoint published multiple research and news items (Jun–Jul 2026) highlighting a range of active threats and defense developments. Key findings: a Proofpoint study reports 65% of organizations affected by ransomware say AI increased attack effectiveness; attackers are abusing OAuth client ID spoofing and other novel techniques to validate and quietly harvest Microsoft Entra credentials/user data; suspected Chinese actors compromised university Roundcube mailservers; China-linked TA4922 expanded phishing campaigns into the UK, Germany, Italy, and South Africa; suspected North Korean actors l