On a Thursday evening three Junes ago, Dejan Karabasevic desperately needed to contact his former wife. Karabasevic, a top engineer in American Superconductor Corp.’s offices in Klagenfurt, Austria, had been summoned to work, then confronted by police, who suspected him of selling his company’s proprietary software to a Chinese wind turbine maker.
The questioning lasted past midnight. When he finally reached his former wife, he instructed her to delete all the e-mails in his Google account. But authorities stopped her before she could.