While the ethics committee exists to ensure that no cherub is placed in excessive danger, some risk is inherent in the nature of every undercover mission.

Four cherubs have died on missions. Jason Lennox and Johan Urminski in 1954, Katherine Field in 1967 and Thomas Webb in 1982. The fact that there have been no deaths for over twenty years reflects the close scrutiny the ethics committee now puts every CHERUB mission under before it is approved.

There have been a few serious injuries to CHERUB agents over the sixty years the organisation has been in existence. However, injuries are more common on training exercises on campus than on undercover missions themselves.