Shin Bet Shin Bet The Israel Security Agency (ISA, "Sherut ha-Bitaẖon haKlali" "General Security Service"; ), better known by the acronym Shabak (, , ) or the Shin Bet (a two-letter Hebrew abbreviation of the name), is Israel's internal security service. Its motto is ""Magen veLo Yera'e"" (, lit. "Defender that shall not be seen" or "The unseen shield"). It is one of three principal organizations of the Israeli intelligence community, alongside Aman (military intelligence) and the Mossad (foreign intelligence service). Shabak is believed to have three operational wings: The counter-terrorist unit Yamas is directly subordinate to Shin Bet. Although a security
Chief of the Secret Intelligence Service of the service. One tradition that was not maintained was the selection of the Chief from the ranks of the Royal Navy. Although Smith-Cumming and Sinclair both had long Navy careers, Army veteran Stewart Menzies was appointed over naval officer (and Churchill's preferred candidate) Gerard Muirhead-Gould. Plans to rotate the selection of Chief among the various branches of military service were considered, but most subsequent Chiefs have been career intelligence officers. Although the existence of the Secret Intelligence Service, much less its Chief, was not officially acknowledged until 1992, the role's reality was an open secret for many years. In