Server Message Block (SMB) is a foundational service that has been used for many years. This internet standard protocol enables Windows to share files, printers and serial ports. SMB v1 has been in use since Windows 95, and in 2019, its still often found and abused in networks. It can be used in blended attacks that might include ransomware and other malware. You might find that older copiers and printers or older network-accessible storage still depends on SMB to be functional.”]