The first time I know blockchain was around the end of 2017, with new terms that I had never heard of, starting from Web3.0, decentralization, blockchain and the coolest thing is not being able to be hacked.
With the extraordinary capabilities possessed by blockchain, this is predicted to be the next web that is freer and not restricted by the government.
Everything is done by consensus and works with coding and algorithms from one node to another, so the chances of data and crypto theft are very unlikely.
Is it really unhackable?
Okay, let's take a look at the news that's trending right now, as quoted from The Verge page, a hacker stole $625 million from the blockchain used by one of the NFT games Axie Infinity.
Roughly $625 million worth of cryptocurrency has been stolen from Ronin, the blockchain underlying the popular crypto game Axie Infinity. Ronin and Axie Infinity operator Sky Mavis revealed the breach on Tuesday and frozen transactions on the Ronin bridge, which allows depositing and withdrawing funds from the company's blockchain.
It is said that this is an external breach, occurring because the attacker uses the private security obtained to validate transactions that occur to and from the Ronin blockchain.
All of this is happening on a blockchain that we know its hard to hack, but it's already happening.
From one article that I read, it is said that this all happens when the centralization of a blockchain is getting stronger, so the opportunity to become a target is easier.
Regardless of what it is, one thing is certain, there is no single safe system in this virtual world, even if a system is made in such a way to be safe, sometimes end-user and social engineering factors can be the entrance.
Not to mention if the attack was carried out by an outcast insider, who had worked together to build the system and then wasted for one reason or another, anything could happen. In conclusion, always be careful in surfing, trust no one.