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On July 8, 2026, Threema GmbH was converted into Threema AG. Previously, the company operated through two legal entities: Threema GmbH and Threema Holding AG. To simplify the corporate structure, these entities were merged into a single company: Threema AG.

This change has no impact on our users. The company’s headquarters will remain in Switzerland. All contracts and obligations of Threema GmbH have been transferred to Threema AG and will remain unchanged.

New article:
Messenger Interoperability: Well-Intended, but Bad for Data Privacy

WhatsApp has been open to third-party messaging services since fall 2025. Under the EU’s Digital Markets Act (DMA), the platform is required to support interoperability with alternative chat services. While we support the DMA’s underlying goals, we have decided not to implement interoperability with WhatsApp for several reasons.

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Two puzzle pieces facing each other that do not fit together on a green background.
Two safes, one with a dial and one with a globe icon – representing local and global data security.
Threema Work

Air Gap: Communication in an Isolated System

If you’ve seen “Mission: Impossible,” you probably remember the iconic vault scene in which Tom Cruise is hanging upside down from the ceiling trying to access secret data. The stunt is nerve-wracking, but he had no other way to access the data: the computer could not simply have been hacked because it was not connected to a network – it was “air-gapped.”
Threema Private

Say No to Mass Surveillance

There are always new attempts by governments to systematically monitor Internet users for no reason. However, mass surveillance is not only unsuitable for fighting crime, it is also completely incompatible with democratic principles and poses a considerable threat to data security.
Threema Work

Data Minimization: The Secret Recipe for Sustainable Digitalization of Universities

Have you ever wondered why you have to provide personal information when shopping online? All too often, information such as the phone number and date of birth is provided without hesitation. But does the online shop really need all this information just to deliver baby diapers, for example?
Threema Private

New Desktop App: Now Available for Threema for Android!

Good news for Android users who like to chat from the computer: the beta version of Threema’s new desktop app (which was already available to iOS users) can now also be linked to Android devices.
Smartphone screen showing Threema.Work contact list with four contacts, avatars, IDs, and status indicators.
Threema Work

The Limits of Encryption

The recent news story about a group chat where military information was leaked to a journalist due to human error shows that strong encryption isn’t sufficient for a corporate – let alone governmental – messaging service.
Illustration of secure Threema.Work messaging: data sent from laptop to smartphone by paper plane.
Threema Work

Send the App Activation Link Directly from the Management Cockpit

Threema Work’s management cockpit has recently received an update: app activation links can now be sent to users directly via email from the management cockpit. This makes it easier for administrators to distribute the Threema Work app to their employees.
Green background with a speech bubble reading 'You can now react to messages with emojis!' and five emoji reactions below.
Threema Private

Emoji reactions are here!

What a nod or a shake of the head conveys in a face-to-face conversation can be replicated in Threema with the agree/disagree feature. Sometimes, however, a “thumbs up” or “thumbs down” isn’t enough to express how we feel about a message. That’s where the new emoji reactions come in.
Blue European Union flag with 12 yellow stars and bold yellow letters “DMA” across the center.
Threema Private

DMA: The EU’s Digital Competitiveness Is at Stake

Nearly a year has passed since the so-called “gatekeepers” had to prove their compliance with the European Union’s Digital Markets Act (DMA). Yet, some of them are still bypassing the law.
Collection of privacy-themed stickers with slogans, icons, and a cartoon padlock on a light gray background.
Threema Private

Data Privacy Day: Show Your Support for Online Privacy

January 28 is Data Privacy Day. To celebrate this awareness day, we’ve created a sticker collection dedicated to online privacy. Show your support for the cause, and personalize your smartphone or laptop with privacy stickers!
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