www.novinky.cz Russian Hackers Target Zimbra Users, Compromise Hundreds of Emails
Article Content
- •Laundry Bear, a Russian hacker group, has compromised hundreds of Zimbra email accounts.
- •The attack initially targeted Ukraine before expanding to NATO countries, raising security concerns.
- •CISA and NÚKIB issued a joint warning about the cyber espionage campaign.
A coordinated cyber espionage campaign by the Russian hacker group Laundry Bear has led to the theft of hundreds of emails from Zimbra users. The campaign, which initially focused on Ukraine, has since expanded to include users in the USA and other NATO member countries. The attack was confirmed by multiple intelligence agencies from the USA, Netherlands, Canada, and other nations. The US Cybersecurity and Infrastructure Security Agency (CISA) and the Czech National Cyber and Information Security Agency (NÚKIB) issued a joint warning regarding the breach. British Security Minister Dan Jarvis expressed concern over the hackers testing their methods on Ukrainian victims before targeting NATO members. The Russian embassy in Washington did not respond to requests for comments, and Moscow typically denies such cyberattack allegations. Zimbra and its parent company, Synacor, have not yet provided statements on the incident.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (4)
Following this threat?
Track Laundry Bear and Synacor in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Continue Reading
Critical BeyondTrust 9.3 Vulnerability Actively Exploited by Threat Actor A critical vulnerability (CVE-2026-102764) in BeyondTrust Remote Support has been discovered and is actively being exploited by the threat group ARMORY CASTLE, reportedly linked to China. The vulnerability, which has a CVSS score of 9.3, allows unauthenticated attackers to upload files and potentially compromise host…
Lazarus APT Launches Operation FlashHole Using AI and Post-Quantum Cryptography Kaspersky has identified a cyberespionage campaign, dubbed Operation FlashHole, attributed to the Lazarus APT group, active since July 2025. The campaign has targeted at least three organizations in South Korea's construction, software, and wire-communication sectors. Attack methods include spear-phishing emails…