ClearSignal — Mar 23, 2026

CISA ordered U.S. government agencies to patch three iOS vulnerabilities exploited in cryptocurrency theft and cyberespionage attacks using the DarkSword exploit kit. Microsoft is addressing an ongoing service issue that has intermittently prevented users from accessing Exchange Online mailboxes via Outlook mobile and Mac desktop clients since Thursday. The FBI warned network defenders that Iranian hackers linked to Iran's Ministry of Intelligence and Security are using Telegram in malware attacks.

Top 3

  1. CISA orders feds to patch DarkSword iOS flaws exploited attacks — CISA ordered U.S. government agencies to patch three iOS vulnerabilities exploited in cryptocurrency theft and cyberespionage attacks using the DarkSword exploit kit. — bleeping-computer
  2. Microsoft Exchange Online service change causes email access issues — Microsoft is addressing an ongoing service issue that has intermittently prevented users from accessing Exchange Online mailboxes via Outlook mobile and Mac desktop clients since Thursday. — bleeping-computer
  3. FBI warns of Handala hackers using Telegram in malware attacks — The FBI warned network defenders that Iranian hackers linked to Iran’s Ministry of Intelligence and Security are using Telegram in malware attacks. — bleeping-computer

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