Powerful attacks on blockchains are increasing. So far this year, hackers have executed a minimum of five separate “51-percent attacks” on cryptocurrency projects, with profits amounting to almost $20 million. This represents an annual success rate increase of at least 500 percent, after renowned cybersecurity firm Group-IB recorded no successful 51-percent attacks last year. Group-IB has just released the full version of its annual report on trends in high-tech crime. It shows that between April and June of this year, cryptocurrency hackers went on a veritable rampage. Since 2017, hackers have pocketed $19.5 million worth of cryptocurrency and caused havoc for fledgling blockchains.…
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