The
Israel Security Agency (
ISA,
Sherut haBitaẖon 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 (similar to the British
MI5 or the American
FBI). Its
motto is "
Magen veLo Yera'e" (, lit. "Defender that shall not be seen" or "The unseen shield").