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#DeleteWhatsAppDay: More Relevant Than Ever

Five years ago today, on May 15, 2021, WhatsApp’s controversial new privacy policy came into effect. The update sparked global criticism and raised public awareness of the economic incentives behind data-driven online platforms. With users spending more time online, ever-growing volumes of data, and powerful new AI systems, the concerns raised back then are now even more justified than in 2021.

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Threema Private

#DeleteWhatsAppDay: More Relevant Than Ever

Five years ago today, on May 15, 2021, WhatsApp’s controversial new privacy policy came into effect. The update sparked global criticism and raised public awareness of the economic incentives behind data-driven online platforms. With users spending more time online, ever-growing volumes of data, and powerful new AI systems, the concerns raised back then are now even more justified than in 2021.
Android mascot beside a secure vault with lock and key icons.
Threema Private

Local Data Security with Android Keystore

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 offers a system-level solution for securely managing cryptographic keys.
Threema Private

Cyberattack on Politicians: Security Is More Than Encryption

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 why both takes fall short.
Hand holding a smartphone with a chat app, connected to a server interface, both protected by shield icons with a key symbol.
Threema Work

Protected Data Even if a Device Is Lost

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.
Smartphone displaying a chat conversation with text, voice message, image, and location, featuring the new Liquid Glass design.
Threema Private

Liquid Glass and a More Modern UI in Threema for iOS

New design, redesigned workflows, and additional features: Threema 7.1 for iOS offers more than just Liquid Glass.
Speech bubbles with exclamation and question marks on a green background with Easter eggs.
Threema Private

Get the Message? Of Ghosting, Dry Texting, and Left on Read

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 slang terms and concepts relating to instant messaging.
iPhone screen showing a message that screenshots are disabled by the administrator, with a large red X over a sample screenshot and the label “Prevent Screenshots on iOS.”.
Threema Work

Prevent Screenshots in Threema Work

Business communication belongs in secure channels, not in the photo gallery of personal smartphones. With the latest update of Threema Work and Threema OnPrem for iOS, screenshots of chat histories can now be prevented.
Illustration of a Zero Trust security model with a central lock labeled “Zero Trust,” connected to icons representing databases, users, identity, cloud, devices, and network.
Threema Work

Zero Trust: Rethinking Security in a Connected World

Today’s digital environments are more connected and distributed than ever. Traditional security models built around a trusted network perimeter are no longer sufficient. As cloud services, remote work, and mobile devices blur the boundaries of corporate networks, a new guiding principle has emerged: Zero Trust.
Hand holding a keyring with a key and the Threema icon.
Threema Private

Why There’s No Such Thing as a Threema User Account

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 – and therefore with strong data protection. Another is the risk of user accounts being hijacked through identity spoofing, which current events have brought back into focus.
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