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 ...

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 ...

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 ...

Microsoft's position on Server Message Block version 1 (SMB 1) in Windows systems is that organizations should just get rid of it. Essentially, the 30-year-old SMB 1 protocol permits man-in-the-middle ...

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 ...

Proof-of-concept code for a zero-day in the SMB (Server Message Block) protocol that affects several Windows versions has been published online today, sending sysadmins into a frenzy to protect ...

It places a digital signature into each server message block, which is used by both SMB clients and servers to prevent so-called “man-in-the-middle” attacks and guarantee that SMB communications are ...

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 ...

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 ...