The Entity is one of the main antagonists (along with Gabriel) of the 2023 spy action film Mission: Impossible – Dead Reckoning Part One. It will return in some capacity in its upcoming 2025 sequel Mission: Impossible – Dead Reckoning Part Two.
It is a mysterious artificial intelligence designed for intel gathering and hacking into enemy systems, that somehow developed sentience and began a campaign of cyberterrorism against the world's various intelligence services.