According to Moscow based Russian security firm Group-IB’s research, since February 2017 hackers have stolen $882 million from crypto exchanges, ehtereumworldnews reports.
The group also warns that in 2019 exchanges will be under hackers’ crossfire again and attacks will become more severe.
‘51%’ attacks, when hackers get access to the majority of network nodes and manipulate blockchain on their own, will grow in number as well.
Group-IB identifies that the North Korean state-backed hacker group “Lazarus” is responsible for $571 million of the $882 million total.
Just like Lazarus, there are other hacker groups (MoneyTaker, and Cobalt for example) that are now very experienced in stealing cryptocurrencies by different attacking methods.
It looks like hackers choose their targets among Japanese and South Korean crypto exchanges mostly.
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