The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German milita...

Lapsus$ and the group behind the SolarWinds hack have utilized prompt bombing to defeat weaker MFA protections in recent months. One technique involves sending a bunch of MFA requests and hoping the target accepts one to make the notifications stop.