This autumn, the Secret Communication exhibition will open its doors for the fifth time in Duivendrecht, a town just outside Amsterdam. If you have an interest in cryptography, this event is well worth a visit.

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On September 3, 2026, US researcher Eric Lu announced that he had successfully factored RSA-260, an RSA challenge number consisting of 260 decimal digits or 862 bits. This surpasses the previous factoring record, RSA-250 (829 bits), which dated back to 2020. The achievement marks the largest RSA challenge number ever factored.

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