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Bleeping Computer
Microsoft has introduced a new Teams admin policy that allows organizers to prevent third-party bots from joining meetings without approval. [...]
Bleeping Computer
Microsoft has introduced a new Teams admin policy that allows organizers to prevent third-party bots from joining meetings without approval. [...]
Bleeping Computer
Underground Telegram channels shared SmarterMail exploit PoCs and stolen admin credentials within days of disclosure. Flare explains how monitoring these communities reveals rapid weaponization of CVE-2026-24423 and CVE-2026-23760 tied to ransomware activity. [...]
The Hacker News
SmarterTools confirmed last week that the Warlock (aka Storm-2603) ransomware gang breached its network by exploiting an unpatched SmarterMail instance. The incident took place on January 29, 2026, when a mail server that was not updated to the latest version was compromised, the company's Chief Commercial Officer, Derek Curtis, said. "Prior to the breach, we had approximately 30 servers/VMs
Dark Reading
The ransomware group breached SmarterTools through a vulnerability in the company's own SmarterMail product.
Bleeping Computer
SmarterTools confirmed last week that the Warlock ransomware gang breached its network after compromising an email system, but did not impact business applications or account data. [...]
Bleeping Computer
The Cybersecurity & Infrastructure Security Agency (CISA) in the U.S. has issued a warning about CVE-2026-24423, an unauthenticated remote code execution (RCE) flaw in SmarterMail that is used in ransomware attacks. [...]
The Hacker News
SmarterTools has addressed two more security flaws in SmarterMail email software, including one critical security flaw that could result in arbitrary code execution. The vulnerability, tracked as CVE-2026-24423, carries a CVSS score of 9.3 out of 10.0. "SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API
Bleeping Computer
Nonprofit security organization Shadowserver has found over 6,000 SmarterMail servers exposed online and likely vulnerable to attacks exploiting a critical authentication bypass vulnerability. [...]