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Unpatched bug allows takeover of Horde webmail accounts, servers
Brief Unpatched bug allows takeover of Horde webmail accounts, servers

Catalin Cimpanu February 22, 2022

European governments targeted by Chinese hackers with a Zimbra webmail zero-day

Catalin Cimpanu February 3, 2022

European governments targeted by Chinese hackers with a Zimbra webmail zero-day
Hackers breach corporate email servers to send spam to employees
Brief Hackers breach corporate email servers to send spam to employees

Catalin Cimpanu November 22, 2021

Official FBI email server hacked, used to send fake threat

Catalin Cimpanu November 13, 2021

Official FBI email server hacked, used to send fake threat
Microsoft adds novel feature to Exchange servers to allow it to deploy emergency temporary fixes
Brief Microsoft adds novel feature to Exchange servers to allow it to deploy emergency temporary fixes

Catalin Cimpanu September 27, 2021

Microsoft Exchange Autodiscover bug leaks hundreds of thousands of domain credentials

Catalin Cimpanu September 22, 2021

Microsoft Exchange Autodiscover bug leaks hundreds of thousands of domain credentials
ProxyToken vulnerability can modify Exchange server configs
Brief ProxyToken vulnerability can modify Exchange server configs

Catalin Cimpanu August 30, 2021

STARTTLS implementations in email clients & servers plagued by 40+ vulnerabilities

Catalin Cimpanu August 18, 2021

STARTTLS implementations in email clients & servers plagued by 40+ vulnerabilities
Poland says recent attacks on local politicians originated from Russia

Catalin Cimpanu June 18, 2021

Poland says recent attacks on local politicians originated from Russia
21Nails vulnerabilities impact 60% of the internet’s email servers

Catalin Cimpanu May 4, 2021

21Nails vulnerabilities impact 60% of the internet’s email servers
Microsoft Exchange servers targeted by second ransomware group

Catalin Cimpanu March 23, 2021

Microsoft Exchange servers targeted by second ransomware group
Microsoft: 92% of all Exchange servers have been patched or received mitigations for the ProxyLogon bugs

Catalin Cimpanu March 22, 2021

Microsoft: 92% of all Exchange servers have been patched or received mitigations for the ProxyLogon bugs