Security News
Russian state-sponsored actors have staged NT LAN Manager (NTLM) v2 hash relay attacks through various methods from April 2022 to November 2023, targeting high-value targets worldwide. The...
A now-patched security flaw in Microsoft Outlook could be exploited by threat actors to access NT LAN Manager (NTLM) v2 hashed passwords when opening a specially crafted file. The issue, tracked...
Beyond blockchain: Strategies for seamless digital asset integrationIn this Help Net Security interview, Jean-Philippe Aumasson, CSO at Taurus, emphasizes the often-overlooked complexities of key generation, storage, and distribution, underlining the necessity for a high level of security maturity in handling digital assets. Attackers can steal NTLM password hashes via calendar invitesA recently patched vulnerability in Microsoft Outlook that can be used by attackers to steal users' NTLM v2 hashes can be exploited by adding two headers to an email carrying a specially crafted file, security researcher Dolev Taler has shared on Friday.
A recently patched vulnerability in Microsoft Outlook that can be used by attackers to steal users' NTLM v2 hashes can be exploited by adding two headers to an email carrying a specially crafted file, security researcher Dolev Taler has shared on Friday. He and his colleagues from Varonis Threat Labs have revealed two additional ways attackers can get users' NTLM v2 hashes and use them for offline brute-force or authentication relay attacks.
Cybersecurity researchers have discovered a case of "forced authentication" that could be exploited to leak a Windows user's NT LAN Manager (NTLM) tokens by tricking a victim into opening a...
Now Microsoft plans to extend Kerberos in the versions of Windows and Windows Server that will ship in the next two years to help organizations move off NTLM. Here's what will change and how to prepare. How can I get ready to move off NTLM? Just over half of NTLM usage is for applications that hardcode in using NTLM. If you've done that in your own applications, you'll need to update the application: There aren't any shims or workarounds that Microsoft can do in Windows.
Microsoft has announced that it plans to eliminate NT LAN Manager (NTLM) in Windows 11 in the future, as it pivots to alternative methods for authentication and bolster security. "The focus is on...
Microsoft announced earlier this week that the NTLM authentication protocol will be killed off in Windows 11 in the future. [...]
Microsoft added a new security feature to Windows 11 that lets admins block NTLM over SMB to prevent pass-the-hash, NTLM relay, or password-cracking attacks. This will modify the legacy approach where Kerberos and NTLM authentication negotiations with destination servers would be powered by Windows SPNEGO. When connecting to a remote SMB share, Windows will try to negotiate authentication with the remote computer by performing an NTLM challenge response.
Microsoft says SMB signing will be required by default for all connections to defend against NTLM relay attacks, starting with today's Windows build rolling out to Insiders in the Canary Channel. "This changes legacy behavior, where Windows 10 and 11 required SMB signing by default only when connecting to shares named SYSVOL and NETLOGON and where Active Directory domain controllers required SMB signing when any client connected to them," Microsoft said.