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Privacy Tips from the Threema Team

If you search the Internet for tips on protecting your online privacy, you’ll find plenty: set a unique password for each service, download updates as soon as possible, and use privacy-friendly alternatives to Big Tech. That’s certainly a great start, but there’s more to it. In this post, we’ve compiled some of the best privacy tips from the Threema team – ranging from general advice to very specific measures.

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Chat bubble containing a hand holding a glowing light bulb.
Chat bubble containing a hand holding a glowing light bulb.
Threema Private

Privacy Tips from the Threema Team

If you search the Internet for tips on protecting your online privacy, you’ll find plenty: set a unique password for each service, download updates as soon as possible, and use privacy-friendly alternatives to Big Tech. That’s certainly a great start, but there’s more to it. In this post, we’ve compiled some of the best privacy tips from the Threema team – ranging from general advice to very specific measures.
Illustration of an overloaded server and malfunctioning connected devices.
Threema Private

DDoS Attacks on Threema

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 attacks. Below, we explain what happened and outline the measures we’ve taken.
Two puzzle pieces facing each other that do not fit together on a green background.
Threema Private

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.
A stylized user overview in the Threema Work management cockpit, with a highlighted button for creating a tag.
Threema Work

Easier Tag Management in the Management Cockpit

Are you already using tags in the management cockpit? If so, the latest update is for you, as it makes managing them much easier. If, however, you’re new to tags, here’s how they can help you organize groups and distribution lists more efficiently.
Three emoji faces showing eye-rolling, awkwardness, and frustration on a green background.
Threema Private

World Emoji Day: Our Emoji Pet Peeves

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 – their popularity, they also give rise to a number of minor pet peeves. Here’s a non-exhaustive (and not entirely serious) overview.
Illustration of a project roadmap with colorful timeline bars on a calendar-like grid.
Threema Work

What We’re Working On

As an app development company, we’re busy day in and day out further developing the Threema apps. Here’s a quick look at what we’re currently working on.
Threema Private

Anonymity at the System Level – The Ultimate Privacy Protection

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, it’s not enough to provide comprehensive privacy protection. To protect users’ privacy, anonymity has to be part of the system architecture.
Smartphone chat screen showing a contact marked as unavailable and on vacation until June 21, with the status menu open.
Threema Work

Availability Status in Threema Work

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, you can see at a glance who’s available.
Illustration of a hand holding a smartphone displaying customer satisfaction survey ratings with emoji faces and colored sliders.
Threema Private

Survey Feed: Involving Users in the Development Process

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 features and implement them in the best possible way.
RSS Feed – Private RSS Feed – Work

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