MySign is a digital signature app developed by VIETTEL TELECOM for Android devices. It is a part of the Viettel-CA remote digital signature solution, allowing customers to easily and safely authenticate and authorize various document signing and transactional activities from anywhere, anytime using their smartphones or tablets. MySign conforms to the European eIDAS standard for remote digital signatures, and fully complies with Vietnamese legal requirements for digital signatures.

One of the main features of MySign is the ability to sign documents directly on mobile devices, tablets, and the customer's own app. The app is easy to use, flexible, and can be accessed anytime, anywhere.