Intrusion Countermeasures Electronics

Intrusion Countermeasures Electronics (abbr: ICE) is a type of Net security in the Cyberpunk universe.

Overview
ICE is a hardware layer that protects individuals or infrastructures from being breached.

Trivia

 * Intrusion Countermeasures Electronics was first popularized by William Gibson in several of his novels and short stories, but the term originates from Tom Maddox who let Gibson use the term after reading it in an unpublished manuscript.