Microsoft has announced that the phase-out of NT LAN Manager (NTLM) is now moving to the next phase, which includes disabling the protocol by default. This is in an effort to increase security in Windows 11 and Windows Server.
NTLM is a series of security protocols introduced in the 1990s, but since Kerberos became the default protocol in Windows 2000, its use has declined.
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However, many legacy enterprise systems still support or use NTLM, making them vulnerable to attacks NTLM relay. And while Microsoft administrators have been preparing for the removal of NTLM for years, many are still struggling to rid their networks of the protocol.
In recent years, hackers have exploited NTLM vulnerabilities to gain full access to networks, so the disadvantages of supporting it outweigh the advantages. Microsoft now considers NTLM obsolete. A timeline for the deactivation can be found on the Windows IT Pro Blog.
Disable NTLM for Windows security
Microsoft's decision to disable NTLM by default is an important step towards strengthening system security.
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NTLM has been the target of many attacks, as attackers exploit its weaknesses to gain unauthorized access to sensitive data. Disabling the protocol will significantly reduce the attack surface for hackers, making systems more secure. At the same time, Microsoft encourages system administrators to switch to more modern and secure protocols, such as Kerberos, which offers better protection and has been proven to be more resistant to attacks.
This transition requires careful planning and execution, as many legacy systems may face compatibility issues. However, the long-term security of systems and data is paramount , and Microsoft's effort is a step in the right direction. System administrators are urged to update their networks and ensure that all systems are compliant with the new security standards.
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Microsoft is providing guidance and tools to help ease this transition, and security experts recommend regularly training and updating IT teams on the latest developments and threats. Disabling NTLM is a significant change that will impact many businesses, but strengthening security is essential to protect data and systems from malicious attacks.
