Can the employer simply ban Tiktok and Co on company cell phones and other digital company devices? Yes, according to a STANDARD request from the Chamber of Labour. In principle, the employer is responsible for data security on the devices provided by . According to the General Data Protection Regulation (GDPR), it must be ensured that personal data stored on a device or in the associated cloud is protected from unauthorized access. And that doesn’t just apply to e-mail and customer files, but also apps that usually access mailboxes or system programs. In theory, Facebook, Whatsapp and Instagram can also end up on the banned list for business cell phones at any time.