Unlikely Trio Linked to Hack of AT&T Data, Attempt to Sell It

Connor Moucka, a Canadian, dropped out of high school and lived with his grandfather. John Binns, an American living in Turkey, feared the FBI and CIA were tracking him. Cameron Wagenius, a US soldier, allegedly Googled how to defect to Russia.

That unlikely trio now faces charges related to an extensive hacking spree that resulted in millions of dollars in ransom payments, a massive cache of stolen mobile phone records, and a warning from FBI leaders that the theft could expose communications between agents and secret sources.

Moucka, 25, and Binns, 25, who is being held in a Turkish prison, ...