One of blockchains biggest challenges is the security risks from hackers due to lack of identity and trust verifier.
How can this be solve?
There is no blockchain technology or website that does not have anti hackers who help them to protect their website it was then when all this blockchains is being hacked by unknown people so right now everyone is interested in security purpose of the platform is created because any exchange that does not have a higher security protection of its sites nobody would like to invest with them or to give their money with because what other competitors will use against them is that when you invest them they will misplace your funds