Proof-of-Stake can lead to cryptocurrency hacking

Proof-of-Stake can lead to cryptocurrency hacking

A group of specialists from the Research and Development Department of the University of Illinois (USA) analyzed the work of cryptocurrencies operating on the Proof-of-Stake (PoS) mechanism (evidence of participation in the blockchain). Scientists have discovered two vulnerabilities. It turned out that a user who is not related to a distributed digital asset registry may interfere with its work. The department published the information in the report.



The authors of the study believe that PoS cryptocurrencies need to abandon the use of the UTXO system - unspent transaction outputs. Also, they need to stop using the consensus rule, under which the main chain is the one that is the longest. Otherwise, the security of the cryptocurrency ...
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