Nothing is safe as long as they are under cryptocurrency
Stop blabbering, crypto currency is not an authority to say there is something under them and the term crypto currency is generally used to address the decentralized peer to peer mode of transaction which is completely safe no matter what.
Stable coins aren't really a cryptocurrency they are using blockchain technology but hold high risk than fiat.
. Except there is no security in any of these projects. I will not talk about LUNA. But BNB and ETH can block your funds, so using stablecoins cannot be called safe for any of us.