The U.S. Cybersecurity and Infrastructure Security Agency
(CISA) and National Security Agency (NSA), along with international
partners from Australia and Canada, have released guidance to
harden on-premise Microsoft Exchange Server instances from
potential exploitation. "By restricting administrative access,
implementing multi-factor authentication, enforcing strict
transport security
Read more https://thehackernews.com/2025/10/cisa-and-nsa-issue-urgent-guidance-to.html

