Blockchains Were Supposed to Be “Unhackable.” Now They’re Getting Hacked.

"Until recently, blockchains were seen as an “unhackable” technology powering and securing cryptocurrencies — but that’s no longer the case.
Hackers have gotten away with nearly $2 billion worth of cryptocurrency since 2017 by attacking the unique vulnerabilities of blockchains, MIT Technology Review reports. In other words, forget what you heard from Bitcoin boosters — just because information or currency is on a blockchain doesn’t necessarily mean that it’s more secure than any other form of storage.
In one recent attack, a hacker was able to gain control over Ethereum Classic’s network and rewrite transaction history. As a result, the attacker was able to “double spend” cryptocurrencies, getting away with some $1.1 million..." Lire la suite