Is blockchain really safe?

Blockchain technology is secure as it is decentralised and distributed. There is no single point of failure, which makes it much harder to corrupt. Hacking into one part of the system cannot affect other parts. … This restricts users from making changes to the ledger.

Is blockchain network trustable if so why?

Today, there are more than 10,000 other cryptocurrency systems running on blockchain. But it turns out that blockchain is actually a reliable way of storing data about other types of transactions as well.