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The Boston Globe

Business

Files trace betrayal of a prized China-Mass. partnership

Software theft jolted Mass. firm

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.

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