If you want to block NTLM attacks over SMB in Windows 11, here is how you can do that. An administrator can block all the NTLM attacks over Server Message Block with the help of the Local Group Policy ...

Server 2008 R2 defaults to a maximum 1-megabyte MTU (Maximum Transmission Unit), but the protocol specification permits even higher values. Microsoft estimates a 30% to 40% gain versus SMB 2.0 in file ...

One of the ways in which Server 2008’s new version of the Server Message Block protocol improves performance over the original version of SMB is through something called “opportunistic locking,” or ...

SMB was originally developed for Windows OS but a later software implementation called Samba made it possible for SMB to be used on Mac OSs or UNIX. Server message blocks run on top of TCP/IP, via ...

Early versions of Server Message Block are still present on many Windows networks and devices, leaving them open to attack. Here's how to detect and disable them. Server Message Block (SMB) is a ...

Microsoft explained in a Wednesday announcement that it didn't actually remove Server Message Block 1 (SMB1) from Windows releases. SMB1 is a deprecated and insecure Windows component still used by ...

Microsoft released the KB4551762 security update to patch the pre-auth RCE Windows 10 vulnerability found in Microsoft Server Message Block 3.1.1 (SMBv3), two days after details regarding the flaw ...

Functional proof-of-concept code for a Server Message Block (SMB) 3.1.1 vulnerability in newer Windows systems has been published, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) ...

Microsoft today released security updates to fix at least 67 vulnerabilities in its Windows operating systems and software. Redmond warns that one of the flaws is already under active attack, and that ...

Microsoft has not completely scrubbed Windows of Server Message Block 1 (SMB1), the company said this week, counter to its previously stated plans. SMB1 is a deprecated and insecure Windows component ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday warned that functional proof-of-concept code for a Server Message Block (SMB) 3.1.1 vulnerability in newer Windows systems ...

After an Internet-wide scan, researchers at cybersecurity firm Kryptos Logic discovered roughly 48,000 Windows 10 hosts vulnerable to attacks targeting the pre-auth remote code execution CVE-2020-0796 ...