▽MS セキュリティブログ(Japan Security Team) ●12/11 20:53 Mitigating NTLM Relay Attacks by DefaultMonday, December 09, 2024Introduction In February 2024, we released an update to Exchange Server which contained a security improvement referenced by CVE-2024-21410 that enabled Extended Protection for Authentication (EPA) by default for new and existing installs of Exchange 2019. While we’re currently unaware of any active threat campaigns involving NTLM