Apple has agreed to buy fingerprint reader AuthenTec Inc. for approximately $356 million as Apple looks to strengthen its digital security capabilities. The transaction was unanimously approved by AuthenTec's board. It still requires approval from a majority of the holders of AuthenTec stock.

Florida-based AuthenTec develops technology to secure networks and mobile devices using fingerprint sensors and identity management.

AuthenTec's authentication features could be integrated into Apple's iPads, iPhones and potentially as security measures for other features, like non-mobile computer systems or cloud-based networks or services.