Earlier there is a news that Coinex have been hack, where the hacker transfer and drain the wallet, with ETH, Polygon, Tron etc, i think this is the first time this exchange has been hack, i say i have coins there but no value, but if you have lots of eth and others thats is a major concern, since we don't know if they can refund the loses.
Same story we have been hearing since cryptocurrency exchange went mainstream, most exchange aren't worthy of been used because they have zero security features and aren't different from those that have been compromised in the past. Most exchanges just copy codes from other exchange and use for their platforms which means if the copied platforms got exploited, there's every tendency that they'll be exploited as well. Keeping coins on exchanges aren't not wise, this isn't going to be the first time an exchange is getting exploited and it won't be the last because hackers are constantly improviny their skills to steal and the exchanges aren't doing things necessary to keep their platforms safe (because there isn't much they can do since they're already using a centralized server).
Its just wrong on first place , why would you store your valuable asset on exchange , most exhanger are centralized anyways so its not make any sense that you would store an Unregulated asset onto it . doesnt matter how convenient and safe , no one really knows when security breach and other something goes wrong happen. The only right answer was ur own wallet , you get your own private key and full access and control on your own asset .
Both the decentralized exchange aren't recommend to store coins on their platforms. You don't have to store coins on exchanges because most of them are centralized, you don't do that because it isn't safe and exchanges has their own services that they offer which acting as a wallet isn't one of them. Your coins should be store on a wallet that gives you full control. We should be the ones protecting our coins so we can hold ourselves responsible for anything that happens to them and not be in a situation were you lose your coins because of others mistakes. Centralized exchange are always liable to attack because they're perfect target to hackers.