Blockchain is a system that does not use such third parties. In essence, records of transactions that have occurred, stored by many computers scattered in the network itself. So it would be harder to hack a system of hundreds or thousands of computers, and chances are small for all of those computers to be interrupted at the same time.

And what I learned about bitcoin and altcoins is knowing bitcoin as a digital currency and altcoins following behind it, I am grateful to have known cryptocurrency.
Because of this cryptocurrency I can make money without having to work overtime and waste of sweat.