NEW YORK (Reuters) - A computer hacker pleaded guilty to helping write malicious code that let him breach AT&T Inc servers and steal personal data belonging to 120,000 Apple Inc iPad subscribers, U.S. prosecutors said. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=--fzdQvyjCE:Ub69lyOpfGE:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=--fzdQvyjCE:Ub69lyOpfGE:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/--fzdQvyjCE)