Jon Callas, who as co-founder and chief technologist of PGP helped bring strong encryption to the masses, has taken a job with Apple working on operating-system security.
His move around the beginning of the year was confirmed by two of his long-time friends and this brief bio, which says Callas remains on PGP's technical advisory board. He previously served as CTO and CISO of PGP Corporation since its founding in 2002.

Callas is the latest celebrity researcher to join Apple's security team. Last month, former Mozilla security boss Window Snyder, credited with making Firefox's security response more professional, took a job in Cupertino's security department. And in May 2009, One Laptop Per Child's top security architect, Ivan Krstic, signed on to Apple, with the title of "Security Samurai, Core OS."

Callas didn't respond to an email and phone call seeking details. His Linked profile lists his position as "Cryptographer at I Could Tell You But Then I'd Have To Kill You and Associates." His move marks the second time he's been employed at Apple, having worked as a "software developer and researcher focused on new networking and collaboration products" from 1995 to 1997, according to his resume (PDF).

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