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Microsoft warns of Exchange zero-day flaw exploited in attacks

… In October, weeks after Exchange 2016 and 2019 reached the end of support , the Cybersecurity and Infrastructure Security Agency CISA and the National Security Agency NSA released guidance to help IT admins harden Microsoft Exchange servers against attacks. …

May 15, 2026 · Sergiu Gatlan

bleepingcomputer.com › news › security

OpenClaw AI agent found falling for phishing attacks, spills user data

… For high-risk actions such as credential sharing, financial data requests, and first-time communications, human approval should be requested. Test every layer before attackers do Security teams log 54% of successful attacks and alert on just 14%. …

Jun 9, 2026 · Bill Toulas