https://macrosec.tech/index.php/2021/05/17/capturing-netntlm-v2-hahes-via-outlook-signatures/
Capturing NetNTLM V2 hashes Via Outlook Signatures — MacroSEC
May 24, 2021 - Today, it is possible to craft a malicious email that allows an adversary to capture NetNTLMV2 hashes without requiring any form of interaction with the user....
capturinghashesviaoutlooksignatures