relay attacks

About this tag
Relay attacks, particularly NTLM relay attacks, remain a significant threat to Active Directory environments in 2025. Despite years of security improvements, many enterprise domains are still susceptible, enabling lateral movement and privilege escalation. Recent incidents show attackers exploiting NTLM vulnerabilities like CVE-2025-24054 to steal hashes via phishing campaigns, targeting government and private sectors. Microsoft's Patch Tuesday updates address these issues, but organizations must enforce mitigations such as disabling NTLM or using Extended Protection for Authentication. Understanding and defending against relay attacks is crucial for IT security teams managing Windows and Microsoft 365 environments.

  1. September Patch Tuesday: 81 fixes, two zero-days; Windows 10 ends soon, Windows 11 gains

    Microsoft's September Patch Tuesday delivers a heavy dose of security fixes for both Windows 10 and Windows 11 — including two publicly disclosed zero-days — but reserves the most visible user-facing improvements for Windows 11, reinforcing that Windows 10 is now in its final maintenance phase...
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    • ai features authentication click to do copilot cve-2024-21907 cve-2025-55234 end of support esu newtonsoft-json patch privacy recall feature relay attacks security updates smb sql server windows 10 windows 11 windows hello zero-day
    • Replies: 0
    • Forum: Windows News

  2. Protecting Microsoft 365 from Internal Phishing via Direct Send Exploits

    Threat actors are increasingly exploiting Microsoft 365’s Direct Send feature to conduct highly convincing internal phishing campaigns, eroding trust within organizations and challenging the efficacy of traditional security defenses. This emergent attack vector, recently highlighted by...
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    • attack vector business email compromise cloud infrastructure cloud security cyber attack methods cyber threats cybersecurity direct send email security email spoofing email threats incident response legacy systems microsoft 365 security network security phishing relay attacks relay server security security security awareness security best practices smtp relay security spoofing supply chain security threat detection zero trust
    • Replies: 1
    • Forum: Windows News

  3. NTLM Relay Attacks in 2025: Rising Threats and How to Defend Your Active Directory

    NTLM relay attacks, once thought to be a relic of the past, have re-emerged as a significant threat in modern Active Directory environments. Despite years of research and incremental security improvements, most enterprise domains remain susceptible to these attacks, creating wide-reaching risks...
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    • active directory ad security certificate services coercion techniques credential theft cyberattack prevention cybersecurity kerberos lateral movement ldap network security ntlm relay privilege escalation relay attacks risk mitigation security defaults security updates smb signing
    • Replies: 0
    • Forum: Windows News

  4. Critical Windows NTLM Vulnerability CVE-2025-24054 Exploited in the Wild: What You Need to Know

    Microsoft's March 2025 Patch Tuesday brought an extensive lineup of bug fixes, but among these was a vulnerability that would quickly escalate into a significant security incident: CVE-2025-24054, an NTLM hash-leaking flaw. While Microsoft initially considered this vulnerability "less likely" to...
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    • advanced threats apple security apple zero-day authentication control-flow hijacking cve-2025-24054 cyber threats cyberattack cybersecurity endpoint security enterprise security exploit exploit prevention hash leaks incident response ios security ios vulnerabilities legacy protocols macos security malicious files malware malware campaigns memory issues micropatches microsoft patch mobile security network security network segmentation ntlm ntlm hash leak ntlm vulnerability pass-the-hash password hashes patch patch management phishing relay attacks remote code execution remote desktop security security security best practices security mitigation security patch security updates smb protocol threat actors threat intelligence vulnerability windows security windows update windows vulnerabilities zero-day zero-day vulnerabilities
    • Replies: 4
    • Forum: Windows News

  5. CVE-2025-24054 and NTLM Hash Theft: The Rising Threat to Enterprise Security in 2025

    North winds carry more than just Poland’s infamous cold: as March 2025 would have it, they swept in a fresh surge of NTLM hash theft, thrusting CVE-2025-24054 into the glaring spotlight of cybersecurity’s main stage. Weeks before most CIOs had even had their coffee, threat actors were already...
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    • apt28 authentication business resilience cve-2025-24054 cyber threat landscape cyberattack prevention cybersecurity hash theft identity security kerberos migration legacy protocols microsoft patch network security ntlm vulnerability patch management phishing relay attacks security best practices smb security zero-day vulnerabilities
    • Replies: 0
    • Forum: Windows News