Threema Secure Messaging Service Hit by Massive DDoS Attack

Threema, a privacy-focused secure messaging service, was hit by a series of large-scale distributed denial-of-service (DDoS attacks) that temporarily disrupted access for users. The incidents affected the platform on Tuesday evening and continued intermittently through Wednesday morning before normal operations were restored. According to Threema, the service was unavailable between 7:30 p.m. and 11:30 p.m. CEST on Tuesday. Users also experienced short, intermittent disruptions on Wednesday morning as the attacks continued and shifted in pattern. Threema confirmed that all services had returned to normal operation by 12:23 p.m. CEST. A distributed denial-of-service attack, commonly known as a DDoS attack, attempts to make an...

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