Ripple (XRP) is proof that cryptocurrency can be centralized as well. But I can't imagine Bitcoin to be centralized. This will never happen.
Yeah centralized exchange already proof their identity and quality I think decentralized exchange is not secure in different sides
My friend wallet hacked and more than recently 2300$ stolen from forkdelta
Definitely happened by forkdelta authority i believe
Centralized exchange strongly secured i think
Because they asking KYC and for more safety purpose
Two factor security is more strong and protect to your wallet
But hacking is possible also in centralized