Don't expect all cryptocurrency exchange to be same when it come to it security, some had the money to use while others don't. Mostly, the exchange we should be afraid of are the new cryptocurrency exchange and not some old exchange that has good reputations when talk about security. The likes of Binance and other good exchange should be embrace and use.
They don't hack without a source, those hackers do carryout their dubious actions through compromised emails and systems, many had sometimes given out their social medias handles which had exposed them to hackers, they then use the opportunity to maliciously steal from their victims. To be safe in this cryptocurrency industry, ensure to hide your identities from hackers and always double check your URL before imputing your data.