The agency, known by its German acronym BND, is normally forbidden from eavesdropping on Germans or German companies.
But a former BND lawyer told Parliament this week that Germans aren't protected while working abroad for foreign companies.
The government confirmed Saturday to The Associated Press that work-related calls or emails are attributed to the employer. If the employer is foreign, the BND can intercept them.
Opposition lawmakers have accused Germany's government of feigning outrage over alleged NSA spying while condoning illegal surveillance itself.
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