BlueHammer Vulnerability Exploited in Ransomware Attacks

Multiple high-impact security incidents and research items were reported: Microsoft Defender 'BlueHammer' (CVE-2026-33825) was exploited in the wild as a zero-day and used in ransomware attacks; exploitation of a recent critical Oracle E-Business Suite flaw has begun allowing unauthenticated takeover of the Payments product; a critical SimpleHelp vulnerability is being abused to deliver malware and harvest credentials, SSH keys, crypto wallets and developer tooling; Aflac Japan suffered a data breach affecting ~4.38 million policyholders after repeated portal access; Nissan employee data was 1