TeamViewer users are being hacked in bulk, and we still don’t know how

The statement went on to announce two measures being introduced in response to the large number of reported TeamViewer hijackings. The first, dubbed “Trusted Devices,” ensures that before a device can access an existing TeamViewer account for the first time, the account holder must explicitly confirm that the new device is trusted. TeamViewer is implementing the measure using an in-app notification that asks account holders to approve the device by clicking a link sent through e-mail. The second measure, called “Data Integrity,” provides automated monitoring that detects when an account has been hacked.