The Hacker News·Jun 27, 2026 criticalNew SharkLoader Malware Deploys Cobalt Strike in StrikeShark Cyberattacks#cve-2016-4437#cve-2021-26855#cve-2021-36260 5 min1
Kaspersky Securelist·Jun 24, 2026 highStrikeShark: a new campaign involving a custom SharkLoader and Cobalt Strike Beacon#cve-2016-4437#cve-2021-26855#cve-2021-36260 15 min
The Hacker News·May 21, 2026 highShowboat Linux Malware Hits Middle East Telecom with SOCKS5 Proxy Backdoor#cve-2021-26855#malware 4 min1
The Record·Jan 8, 2026 highCISA sunsets 10 emergency directives thanks to evolution of exploited vulnerabilities catalog#cve-2020-0601#cve-2020-1350#cve-2020-1472 in the wild 2 min1
The Hacker News·Aug 18, 2025 highHackers Target Over 70 Microsoft Exchange Servers to Steal Credentials via Keyloggers#cve-2014-4078#cve-2020-0796#cve-2021-26855 4 min1
The Hacker News·Jul 30, 2025 criticalChinese Hacker Xu Zewei Arrested for Ties to Silk Typhoon Group and U.S. Cyber Attacks#cve-2021-26855#policy-legal 4 min
Recorded Future·Jun 27, 2025 criticalDiscovering Exchange Servers: Leveling the Field Using Attack Surface Intelligence#cve-2021-26855#vulnerability 7 min
Help Net Security·Jun 17, 2025Researchers unearth keyloggers on Outlook login pages#cve-2021-26855#cve-2021-34473#cve-2021-34523 2 min1
The Hacker News·Apr 3, 2025 highKaspersky Links Head Mare to Twelve, Targeting Russian Entities via Shared C2 Servers#cve-2023-38831#cve-2021-26855#ransomware 4 min2
Kaspersky Securelist·Mar 13, 2025 highHead Mare and Twelve: Joint attacks on Russian entities#cve-2023-38831#cve-2021-26855#ransomware 15 min1
The Hacker News·Mar 7, 2025 criticalChina-Linked Silk Typhoon Expands Cyber Attacks to IT Supply Chains for Initial Access#cve-2025-0282#cve-2024-3400#cve-2023-3519 in the wild 4 min1
The Hacker News·Jan 7, 2025 highNew EAGERBEE Variant Targets ISPs and Governments with Advanced Backdoor Capabilities#cve-2021-26855#malware 3 min
Security Affairs·Jan 7, 2025 highEagerbee backdoor targets govt entities and ISPs in Middle East#cve-2021-26855#malware 3 min
The Hacker News·Nov 28, 2024 highChinese Hackers Use GHOSTSPIDER Malware to Hack Telecoms Across 12+ Countries#cve-2023-46805#cve-2024-21887#cve-2023-48788 3 min
CyberScoop·Nov 26, 2024 criticalMalware linked to Salt Typhoon used to hack telcos around the world#cve-2023-46805#cve-2024-21887#cve-2023-48788 in the wild 4 min1
Infosecurity Magazine·Sep 24, 2024 critical14 Million Patients Impacted by US Healthcare Data Breaches in 2024#cve-2021-34473#cve-2021-34523#cve-2021-31207 2 min1
The Hacker News·Jun 20, 2024 criticalChinese Cyber Espionage Targets Telecom Operators in Asia Since 2021#cve-2021-26855#threat-actor 2 min
Palo Alto Unit 42·Jun 6, 2024 criticalActor Exploits Microsoft Exchange Server Vulnerabilities, Cortex XDR Blocks Harvesting of Credentials#cve-2021-26855#cve-2021-26857#cve-2021-26858 in the wild 13 min
Palo Alto Unit 42·Jun 6, 2024 criticalTHOR: Previously Unseen PlugX Variant Deployed During Microsoft Exchange Server Attacks by PKPLUG Group#cve-2021-26855#cve-2021-27065#vulnerability 15 min1
Kaspersky Securelist·Sep 11, 2023 highAnalysis of Cuba ransomware gang activity and tooling#cve-2021-31207#cve-2021-34473#cve-2021-34523 15 min
The Record·Feb 3, 2023 criticalMicrosoft Exchange bugs top list of exploited vulnerabilities affecting financial sector#cve-2015-1635#cve-2021-31206#cve-2021-34523 2 min
The Record·Jan 30, 2023 criticalMicrosoft: Chinese APT Targeted Exchange Servers With Four Zero#cve-2021-26855#cve-2021-26857#cve-2021-26858 2 min
The Record·Jan 24, 2023 highMicrosoft shares one-click ProxyLogon mitigation tool for Exchange servers#cve-2021-26855#ransomware 2 min
The Record·Jan 17, 2023 highGerman government warns of APT27 activity targeting local companies#cve-2021-40539#cve-2021-26855#cve-2021-26857 2 min