The Hacker NewsAug 18, 2025highHackers Target Over 70 Microsoft Exchange Servers to Steal Credentials via Keyloggers4 min readcve-2014-4078cve-2020-07963
The Hacker NewsMar 7, 2025criticalChina-Linked Silk Typhoon Expands Cyber Attacks to IT Supply Chains for Initial AccessExploited4 min readcve-2025-0282cve-2024-34002
Infosecurity MagazineSep 24, 2024critical14 Million Patients Impacted by US Healthcare Data Breaches in 20242 min readcve-2021-34473cve-2021-345232
Palo Alto Unit 42Jun 6, 2024criticalActor Exploits Microsoft Exchange Server Vulnerabilities, Cortex XDR Blocks Harvesting of CredentialsExploited13 min readcve-2021-26855cve-2021-268571
Kaspersky SecurelistSep 11, 2023highAnalysis of Cuba ransomware gang activity and tooling15 min readcve-2021-31207cve-2021-344731
The RecordJan 30, 2023criticalMicrosoft: Chinese APT Targeted Exchange Servers With Four Zero2 min readcve-2021-26855cve-2021-268574
The RecordJan 17, 2023highGerman government warns of APT27 activity targeting local companies2 min readcve-2021-40539cve-2021-268552
The RecordJan 10, 2023criticalCISA: Multiple government hacking groups had ‘long4 min readcve-2021-26855cve-2021-268572
Security AffairsJan 4, 2022criticalThe worst cyber attacks of 2021Exploited4 min readcve-2021-26855cve-2021-268573
The Hacker NewsAug 15, 2021highHackers Actively Searching for Unpatched Microsoft Exchange ServersExploited3 min readcve-2021-26855cve-2021-270652
The Hacker NewsAug 13, 2021criticalMicrosoft Issues Security Patches for 89 Flaws — IE 0Exploited3 min readcve-2021-26855cve-2021-268574
Security AffairsJul 28, 2021US, UK, and Australian agencies warn of top routinely exploited issues2 min readcve-2021-26855cve-2021-268572
Kaspersky SecurelistJun 17, 2021criticalBlack Kingdom ransomware11 min readcve-2021-27065cve-2019-115102
Cisco TalosJun 10, 2021criticalQuarterly Report: Incident Response trends from Spring 20218 min readcve-2021-26855cve-2021-268572
Help Net SecurityJun 8, 2021criticalMarch 2021 Patch Tuesday forecast: Off to an early start3 min readcve-2021-26855cve-2021-268572
Kaspersky SecurelistMay 31, 2021criticalIT threat evolution Q1 2021Exploited15 min readcve-2021-26855cve-2021-268572
Kaspersky SecurelistMay 26, 2021criticalKaspersky Security Bulletin 2020Exploited15 min readcve-2020-1380cve-2020-09862
Cisco TalosMay 7, 2021criticalLemon Duck spreads its wings: Actors target Microsoft Exchange servers, incorporate new TTPs15 min readcve-2021-26855cve-2021-268574
Security AffairsApr 14, 2021criticalFBI silently removed web shells planted on Microsoft Exchange serversExploited3 min readcve-2021-26855cve-2021-268572
Security AffairsMar 25, 2021critical62,000 Microsoft Exchange Servers potentially left unpatchedExploited3 min readcve-2021-26855cve-2021-268572
Security AffairsMar 24, 2021critical92% of worldwide Microsoft Exchange IPs are now patched or mitigatedExploited2 min readcve-2021-26855cve-2021-268572
Help Net SecurityMar 19, 2021highAutomatically mitigate ProxyLogon, detect IoCs associated with SolarWinds attackers' activities3 min readcve-2021-26855cve-2021-268572
Security AffairsMar 16, 2021criticalMicrosoft releases On-premises Mitigation Tool (EOMT) tool to fix ProxyLogon issuesExploited4 min readcve-2021-26855cve-2021-268572