Peter Thiel’s Palantir Says Rogue Employee Engaged With Cambridge Analytica

Palantir Technologies Inc., the closely held data-mining startup founded by billionaire Peter Thiel, said it never engaged with political analysis firm Cambridge Analytica but discovered one of its employees had.

Cambridge Analytica is the U.K. firm that harvested data from 50 million unwitting Facebook Inc. users to target voters and help elect Donald Trump. That sparked a firestorm around the social networking firm’s failure to protect personal data and raised larger questions about who owns user information. More details have emerged since that initial revelation, with former Cambridge Analytica employee-turned-whistleblower Chris Wylie testifying Tuesday to U.K. lawmakers that Palantir helped Cambridge Analytica by building algorithms using the Facebook data.