Powers:

Big Brother is highly skilled in computer and telecommunications sciences, as well as bionics.

Enhanced Abilities: Big Brother has superhuman strength and endurance thanks to an exo-skeleton.

Origins:

The boy who would become Big Brother started his criminal career in a street gang: the Hawks. The fifth time he was tried for a crime he was 16; he was sent to the reformatory for an year. The following time he went in prison for 5 years for armed robbery. In prison he learned to use and program computers, to program and use robots, and to increase his physical strength. He was pardoned. Then he started to use his knowledge in electronics and computer networks and set a criminal organization up.

Notes:

Big Brother at Marvel Universe: The Appendix