BlackBerry to Buy Germany's Secusmart

German voice and data encryption specialist Secusmart, which helps equip the German government with secure smartphones, says it's being acquired by BlackBerry for an undisclosed sum.

Secusmart said Tuesday that the deal with Canada's BlackBerry Ltd. "will open the global market in secure mobile communications" for the company. The transaction requires regulatory clearance.

Secusmart said it will still be incorporated as a German company following the deal. The firm already offers a security suite for BlackBerry phones.

Allegations of surveillance by the U.S. National Security Agency have made data security a major concern in Germany over the past year.