Читать книгу Cryptocurrency All-in-One For Dummies онлайн
139 страница из 200
Here are some of the misconceptions you might have heard about Bitcoin:
Bitcoin was hacked. There was one known instance in 2011 where someone double-spent their Bitcoin, but it was resolved within an hour. Since this issue, there have been no known successful attacks on the Bitcoin blockchain that resulted in stolen Bitcoins. However, many central systems that use Bitcoin have been hacked. And wallets and Bitcoin exchanges are often hacked due to inadequate security. The Bitcoin community has fought back by developing elegant solutions to keep their coins safe, including wallet encryption, multiple signatures, offline wallets, paper wallets, and hardware wallets, just to name a few.
Bitcoin is used to extort people. Because of the semi-anonymous nature of Bitcoin, it’s used in ransomware attacks. Hackers breach networks and hold them hostage until payment is made to them. Hospitals and schools have been victims of these types of attacks. However, unlike cash, which was favored by thieves in the past, Bitcoin always leaves a trail in the blockchain that investigators can follow.