Learn about the EU Chat Control proposal and contact your representatives to protect digital privacy and encryption.

If you use Threema regularly, you may have noticed that the service was temporarily unavailable or only partially available on Tuesday evening and Wednesday morning. This was due to a series of DDoS a...

A growing coalition of European organisations calling on President von der Leyen to enforce the DMA in full and without delay.

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....

When the calendar emoji shows the correct date, it’s World Emoji Day. 📅 The cute little pictograms are hugely popular and shape the way we communicate in chats. Yet despite – or perhaps because of – t...

More and more messaging apps are introducing usernames, allowing users to communicate without having to share their phone number with everyone. This is certainly a step in the right direction. However...

Learn about the EU Chat Control proposal and contact your representatives to protect digital privacy and encryption.

Do you need advice from a colleague but aren’t sure whether they’re available right now? Or would you like to set your out-of-office message directly in Threema Work? With the new availability status,...

Staatliche Stellen haben letztes Jahr über 35 Millionen Mal abgefragt, wem eine Telefonnummer gehört. Diese Abfragen haben sich innerhalb von fünf Jahren verdoppelt. Auch Inhaber von IP-Adressen werde...

Freie Software, Freie Gesellschaft

To better tailor the Threema app to our users’ needs, we’re introducing a new survey feed in the Threema Channel. In this feed, periodic user surveys will be conducted to help us identify relevant fea...

Protecting locally stored data is a crucial aspect of any secure messaging app, particularly when server-side storage is intentionally avoided, as is the case with Threema. On Android, the Keystore of...

The wave of attacks targeting Signal and WhatsApp users has not only reached top-level politicians in Germany but also sparked confusion: while some speak of a “hack,” others blame the victims. Here’s...

For companies with the highest security requirements, Threema OnPrem offers a sophisticated new feature: thanks to DualLock, chats are now protected even if a mobile device is lost or stolen.

New design, redesigned workflows, and additional features: Threema 7.1 for iOS offers more than just Liquid Glass.

Have you ever heard someone say they were “ghosted” and had no idea what it means? Or are you unsure what “dry texting” and being “left on read” is? In this blog post, we explain some common Internet ...

Several recent news reports have sparked discussion in the IT community and raised questions among some of our users. One topic is the view that paid online services are incompatible with anonymity – ...

Meta recently announced that WhatsApp will start to show ads to its users. We wanted to outline why online ads and data privacy are fundamentally incompatible, but as it turns out, WhatsApp beat us to...

We are joining forces with IBM’s renowned research division to implement post-quantum cryptography in Threema. This collaboration will further strengthen Threema’s exceptional security standards, ensu...

When it comes to data protection on the Internet, security and privacy are often mentioned in the same breath. However, the two terms are not synonymous. We explain the differences.

Today is Data Privacy Day! Are you up to speed when it comes to online privacy? Put your knowledge to the test, and take the privacy quiz in the Threema Channel.