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Hackers breached over 270 Zimbra servers in ongoing attacks | CyberBlackmail

Zero-Day

Hackers breached over 270 Zimbra servers in ongoing attacks

Threat actors have already compromised over 270 Zimbra instances in remote code execution attacks targeting a high-severity Zimbra Collaboration Suite (ZCS) vulnerability.

BleepingComputer·Aug 25, 2026·3 min read

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