Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite


A group of Russian state-supported cyber actors has been targeting and compromising various Western government and commercial organizations using the Zimbra Collaboration Suite (ZCS) software since at least July 2025. The Russian state supported advanced persistent threat (APT) group’s activity is tracked in the cybersecurity community under several names (see Cybersecurity industry tracking), primarily as “LAUNDRY BEAR,” a name initially coined by the Netherlands General Intelligence and Security Service (AIVD) and Defence Intelligence and Security Service (MIVD).

Read more…
Source: U.S. Federal Bureau of Investigation Cyber Division


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • CISA orders feds to patch Oracle Identity Manager zero-day after signs of abuse

    November 24, 2025

    CISA has ordered US federal agencies to patch against an actively exploited Oracle Identity Manager (OIM) flaw within three weeks – a scramble made more urgent by evidence that attackers may have been abusing the bug months before a fix was released. The flaw, tracked as CVE-2025-61757 and now sitting in CISA’s Known Exploited Vulnerabilities catalog, ...

  • CrowdStrike fires ‘suspicious insider’ who passed information to hackers

    November 21, 2025

    Cybersecurity giant CrowdStrike has confirmed firing a “suspicious insider” last month who allegedly fed information about the company to a notorious hacking group. A hacking collective known as Scattered Lapsus$ Hunters published screenshots late Thursday and Friday morning in a public Telegram channel that allegedly showed insider access to CrowdStrike systems. The screenshots, which TechCrunch has ...

  • WhatsApp security flaw lets experts scrape 3.5 billion user numbers

    November 21, 2025

    WhatsApp users may need to take extra steps to protect their account information following a potentially concerning discovery. A study by researchers at the University of Vienna revealed the app’s contact-discovery system enabled the collection of extensive WhatsApp user data at an unprecedented scale due to insufficient rate-limiting across global endpoints. The researchers were able to ...

  • Logitech Confirms Data Breach After Cl0p, Linked to Oracle E-Business Suite Exploits, Takes Responsibility

    November 20, 2025

    Hardware and software solutions company Logitech has disclosed a data breach that exposed employee, customer, and supplier information. “Logitech International S.A. (“Logitech”) recently experienced a cybersecurity incident relating to the exfiltration of data,” the company stated. Read more… Source: CPO Magazine News Sign up for the Cyber Security Review Newsletter The latest cyber security news and insights delivered right to ...

  • Mac users warned about new DigitStealer information stealer

    November 19, 2025

    This variant comes with advanced detection-evasion techniques and a multi-stage attack chain. Most infostealers go after the same types of data and use similar methods to get it, but DigitStealer is different enough to warrant attention. A few things make it stand out: platform-specific targeting, fileless operation, and anti-analysis techniques. Together, they pose relatively new challenges ...

  • Understanding the future of offensive AI in cybersecurity

    November 19, 2025

    As we step into an era where artificial intelligence (AI) plays an increasingly significant role in cybersecurity, discussions surrounding its offensive capabilities are becoming more prominent. A recent report by Anthropic—a leading AI research lab—has sparked the latest conversation on this topic, with questions raised about their claim that an AI-assisted attack they observed was ...