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Bleeping Computer
Multiple distributed denial-of-service (DDoS) attacks targeted the Threema secure messaging service earlier this week, causing severe disruptions to communications. [...]
Bleeping Computer
A team of researchers from ETH Zurich has published a paper describing multiple security flaws in Threema, a secure end-to-end encrypted communications app. [...]
The Register
At least the penknives are still secure A supposedly secure messaging app preferred by the Swiss government and army was infested with bugs – possibly for a long time – before an audit by ETH Zurich researchers.…
The Hacker News
A comprehensive analysis of the cryptographic protocols used in the Swiss encrypted messaging application Threema has revealed a number of loopholes that could be exploited to break authentication protections and even recover users' private keys. The seven attacks span three different threat models, according to ETH Zurich researchers Kenneth G. Paterson, Matteo Scarlata, and Kien Tuong Truong,
Bleeping Computer
The Swiss army has banned foreign instant-messaging apps such as Signal, Telegram, and WhatsApp and requires army members to use the locally-developed Threema messaging app instead. [...]