The reason for blockchain security standards is that it is vulnerable to hacking. While blockchain security is improving, it’s not perfect. It can still be hacked. However, the advantage of blockchain is that it’s still much more secure. Its decentralized nature means that a hacker has to be quite skilled. Within a single ledger, a hacker must be able to control at least 50 percent of connected computers. While not fool-proof, blockchain technology is relatively safe against novice attackers.