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Almost three months ago the massive cyberattack WannaCry, which caused Telefónica to close its intranet, as well as numerous companies around the world. The attack has had significant costs for many companies, although not all of them have decided to pay to recover the data: they have only managed to collect 140,000 dollars. The way … Read moreBitcoin is not so anonymous and the creators of WannaCry have realized it quickly