A former U.S. Secret Service agent named Peter Cavicchia III ran special ops for JPMorgan Chase & Co. His insider threat group ... used computer algorithms to monitor the bank's employees. Aided by as many as 120 forward-deployed engineers" from the data mining company Palantir Technologies Inc., which JPMorgan engaged in 2009, Cavicchia's group vacuumed up emails and browser histories, GPS locations ... and transcripts of digitally recorded phone conversations. It all ended when the bank's senior executives learned that they, too, were being watched. [The] spying scandal ... which has never been reported, also marked an ominous turn for Palantir. An intelligence platform designed for the global War on Terror was weaponized against ordinary Americans at home. Founded in 2004 by Peter Thiel and some fellow PayPal alumni, Palantir cut its teeth working for the Pentagon and the CIA. The U.S. Department of Health and Human Services uses Palantir. The FBI uses it. The Department of Homeland Security deploys it. Police and sheriff's departments in New York, New Orleans, Chicago, and Los Angeles have also used it, frequently ensnaring in the digital dragnet people who aren't suspected of committing any crime. JPMorgan's experience remains instructive. "The world changed when it became clear everyone could be targeted using Palantir," says a former JPMorgan cyber expert who worked with Cavicchia at one point on the insider threat team. "Everyone's a suspect, so we monitored everything."