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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.
Laptop with red screen showing broken unlocked padlock beside smartphone displaying shield, lock icon and chat bubble.
Threema Work

The Importance of an Out-of-Band Communication Tool

Email, collaboration tool, chat app, telephone: digital infrastructures in companies are becoming increasingly complex. Furthermore, the fact that the number of cyberattacks continues to grow makes having a reliable out-of-band communication tool increasingly urgent – especially in light of the EU’s NIS2 Directive, which is to be transposed into national law by October 17, 2024.
Threema logo next to a document showing pie and bar charts on dark background with Forrester Wave Leader 2024 badge.
Threema Work

Threema Ranked as a Leader in Secure Communications Solutions

The US-based market research company Forrester has published a comprehensive comparison of secure communications solutions. In the 2024 report, Threema is identified as a leader among top vendors on the market.
Smartphone screen showing a sent green message bubble with pencil and trash icons for edit and delete.
Threema Private

Bye-Bye Typos: Edit Sent Messages and Delete Them for Everyone

As the name implies, instant messaging is a fast-paced means of communication. This characteristic has numerous advantages – but also a few disadvantages: due to the fast pace, typos are the rule rather than the exception, and, what’s worse, sometimes messages get sent to the wrong contact in the heat of the moment.
Screenshot of Threema.Work interface showing message list and language flags (German, English, Spanish).
Threema Work

The Management Cockpit Is Now Available in Spanish

The demand for secure corporate communication is increasing across Europe. This is in part because EU regulations such as NIS2 and DORA require companies to have a secure communication channel in place. As a result, more and more companies in the Spanish-speaking market are relying on Threema Work.
Threema Private

Regain Privacy: How to Protect Your Data on the Internet

Preserving privacy on the Internet isn’t easy: advertisers are finding ever more sophisticated ways to collect user data, and new, convenient technology detracts from the negative impact on privacy. The resulting decline in online privacy is further fueled by the fact that online privacy can, due to its abstract nature, be quite hard to grasp.
Laptop displaying six participants in a colorful video conference grid.
Threema Private

Group Calls Are Now Available on the Desktop

Mobile instant messengers became popular as a replacement for SMS messages. Today, they are one of the most widely used Internet services and are no longer limited to written communication – voice messages and video calls are now just as much a part of chat apps as text messages.
Threema Private

Data Security of Threema for Desktop

As highlighted by recent news stories and social media posts, the desktop apps of some messaging services are affected by a long-standing security issue. We’ve been asked whether Threema’s desktop client also suffers from this or any similar flaw. The short answer: No. Threema users don’t need to take any precautions and can continue to use the desktop app. The longer, more explanatory answer:
Blue isometric graphic showing a monitor with 42% shield, server rack, magnifying glass and security alert icons.
Threema Work

Cybersecurity Study: Do companies take data protection and security seriously?

The number of cyber incidents has been rising for years, and attacks on companies are becoming more aggressive and increasingly sophisticated. These worrying trends pose new organizational and financial challenges for companies.
Threema Private

Chat Control Must Be Stopped – Now!

With its legislative proposal known as “Chat Control,” the EU Commission is trying to establish an unprecedented mass-surveillance apparatus of Orwellian proportions in the European Union. If EU citizens don’t stand up for privacy now, it may be too late.
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