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Security incidents, exploited vulnerabilities, breach reports, malware campaigns, and urgent patch notes arranged for fast daily scanning.

June 25, 2026
GitHub removed the ProxyLogon exploit

Lead story · May 23, 2026

GitHub removed ProxyLogon exploit and has been criticized

The administration of the GitHub service has removed a real working exploit for the ProxyLogon vulnerabilities in Microsoft Exchange, though information security specialists have sharply criticized GitHub. Yesterday we wrote that an independent information…

Latest reports

Report · May 23, 2026

Microsoft has released emergency patches for Exchange

Microsoft has released emergency patches for four 0-day vulnerabilities found in the code of the Exchange mail server (CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065). The…

Report · May 24, 2026

Hackers used Firefox extension to hack Gmail

Proofpoint discovered a campaign in which hackers used a Firefox extension to hack Gmail. The attacks were linked to the Chinese group TA413. According…

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