Yankee was a mailswapper and diskmagazine writer. Following his busting for mailswapping in november 1988, Yankee ceased all activity and thereby contributed to the demise of The Mysterious Team, which he was a member of at the time. According to an interview in Hack-Mag 1 (august 1990), he then spent a short time in Shining 8, before founding Curity with some other people. He left that group after just one week, and went into Brainstorm. After some animosity here, he was asked to leave and decided to form his own group; Addonic.

R.A.W 2 (february 1992) reported that Yankee had left the group he helped form, Addonic, to join D-Tect.