A firmware vulnerability in Coldcard hardware wallets, present since March 2021, allowed hackers to steal 1,755 bitcoins from over 5,000 addresses in the first wave of attacks. Coinkite has halted shipments and destroyed vulnerable devices.
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Thirteen-Year-Old Filip from Josipovac Wins European Silver
In just a few weeks, Filip Udovčić secured a silver medal at the European Junior Informatics Olympiad in Kaunas and a fifth national WRO title, earning him a spot at the world finals in Puerto Rico.
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Croatian Juniors Win Gold, Silver, and Bronze at Informatics Olympiad in Kaunas
Gabriel Kos, Filip Udovčić, and Sergej Starešinčić brought medals from EJOI 2026 in Lithuania, with support from the Croatian Informatics Association.
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