I retired (actually now help manage an NGO without pay) after the crypto boom in 2017. Some old co-workers who got into crypto after my bombshell early retirement still ask my opinion on investing in crypto. The answer here is simple and same as it's always been: Not your keys, not your crypto. Keeping money in someone else's hands is inherently risky (as crypto or anything else).
All an exchange needs to do is securely hold customers funds while making money off their trading fees. And yet so many exchanges get greedy and treat customer funds like Ferris Bueller treated his friends' dads sports car. When will people learn?