Russian State-Backed Threat Actor Exploits Zimbra Zero-Day To Steal Emails & Authentication Data post, juli 24, 2026juli 27, 2026 A Russian state-supported hacking group has been exploiting a previously unknown vulnerability in Zimbra Collaboration Suite to silently steal emails, passwords, two-factor authentication codes and corporate address books from government and commercial organizations across Western countries. The campaign, attributed to a threat group primarily known as Laundry Bear, has been active since at least July 2025 and represents a significant escalation in the group’s technical capabilities. Unlike conventional phishing attacks, the operation does not require victims to click a malicious link, download an attachment or enter credentials into a fraudulent website. (8) WARNING: Russian State-Backed Threat Actor Exploits Zimbra Zero-Day To Steal Emails & Authentication Data | LinkedIn Lees verder: Russian State-Backed Threat Actor Exploits Zimbra Zero-Day To Steal Emails & Authentication Data datalek malware 2026Russia