“Privacy by Design” means that we view data protection not just as a legal requirement, but as a guiding principle for our products and services. From the outset, we integrate privacy measures into development – so you don’t have to compromise on privacy.
You decide whether and which contact data you want to share. Threema can be fully used without access to your address book. The optional synchronization is carried out exclusively with cryptographic hashes – keeping your contact list confidential yet usable.
Metadata often reveals more than the actual message content. That’s why Threema stores only the absolute minimum: messages are deleted from our servers immediately after delivery, connection information is not logged, and group memberships remain solely on your devices. This way, you leave virtually no digital footprints.
