Microsoft is hoping to address the security issue of emails sent to Exchange online from unsupported and unpatched Exchange Servers by enabling a transport-based enforcement system in Exchange Online that will throttle and then block emails from an unsupported server. The end goal is to encourage Microsoft customers to stop using persistently vulnerable versions of […]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), along with a coalition of U.S. and foreign security and law enforcement agencies, have released a list of the 15 most exploited vulnerabilities from 2021, calling on both public and private organizations to ensure these critical security bugs are mitigated and systems patched. The list, published in a […]
Microsoft says it has fixed an Exchange Server bug that is causing emails for on-premises servers to get stuck in queues due to the change of the new year. According to Microsoft, emails were stuck in transport queues of on-premises Exchange Server 2016 and 2019 due to a date check failure with the change of […]
System administrators and other IT professionals are urged to apply Microsoft’s May 2021 security updates as threat actors are actively exploiting a previous vulnerability in Microsoft Exchange Server. The U.S. Cybersecurity and Infrastructure Security Agency said over the weekend that multiple threat actors are exploiting three ProxyShell Vulnerabilities, which could allow an attacker to install […]
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