A series of so-called “wrench attacks,” violent robberies targeting wealthy cryptocurrency holders, are making headlines after victims in Los Angeles and the Bay Area were targeted, the San Francisco Chronicle reported. On Nov. 22, a San Francisco man was robbed of $13 million in digital currency after thieves posing as pizza delivery drivers forced their way into his home, bound him with duct tape, beat him with a firearm and threatened to cut off his fingers. The victim told investigators he had been expecting a package when a man carrying a white box arrived on the front porch of his...