The entire premise of using a blockchain is to let everyone, usually people who do not trust each other, share valuable information in a secure manner. The blockchain is assumed to be secure because the records are secured through cryptography. All the participants have their own private keys assigned to each transaction they make and acts as a personal digital signature.
Yet the security of even the best-designed blockchain systems can fail in places where the rules and mathematics are touched by mere mortals (humans). It’s important to remember that all blockchains are not created equal. Whether you’re building your own blockchain or implementing someone else’s, it’s best to have a trusted advisor test the blockchain before you commit dollars and resources to developing or implementing this technology.