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Nalezeno "51% attacks": 434

Bitcoin Gold 51% Attacked – Network Loses $70,000 in Double Spends


The Bitcoin Gold (BTG) network suffered another set of 51% attacks on January 23-24, as roughly 29 blocks were removed in two deep blockchain reorganizations (reorgs). Reports indicate that more than 7,000 BTG was double spent as the chain suffered a loss of $70,000 in two days. Also read: Bitcoin...

Are Attacks Between Rival Blockchains About to Rise?


It's no secret that rival blockchain networks, or to be more precise, the people behind the projects, don't like each other. The Bitcoin community rags on Ethereum, while the EOS community rags on Tron, and so on, in a seemingly endless chain of barbs, criticisms and mockery. But does the war...

HSBC Closes 2 Branches Following New Protests in Hong Kong


HSBC had two of its Hong Kong branches closed on Jan. 2, the first working day of the year, following attacks by protesters during the latest anti-government demonstrations on New Year’s Day. The banking giant also closed seven indoor ATM clusters and announced on Friday it will suspend...

Validate CSP from Command Line


The content security policy spec has been an amazing front-end security tool to help prevent XSS and other types of attacks. I’d go as far to say that every site should implement as specific CSP as possible. If you aren’t familiar with CSPs, here’s a quick example:...

Mystery Surrounds DDoS Attacks That Have Downed the Darknet


If you’ve been struggling to access your favorite darknet market lately, you’re not alone. Ongoing DDoS attacks have rendered marketplaces, forums and other onion sites inaccessible for weeks. Speculation surrounds the attacks, with some blaming law enforcement and others attributing...

Bitcoin Price Might Hit USD 1M Sooner Than a Quantum Computer Attacks


IBM scientist Stefan Filipp, takes a closer look at the dilution refrigerator which will keep qubits at temperatures colder than the deepest parts of outer space. Has Google killed crypto? In a research paper posted to NASA's servers earlier this month and then quickly removed, scientists at...

Bitcoin History Part 16: The First Mt. Gox Hack


No one remembers the first Mt. Gox hack. It was a small sum, even by 2011’s standards, and the exchange reimbursed all users. The incident was to prove significant, however, for it set in motion a string of attacks on other bitcoin platforms that began the very next day. By the time the dust...

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