The issue of theft in the crypto industry has always been a muddled mess—there’s no way to find the real answer.

Exchanges will absolutely never admit they have a problem; if they did, they might as well not be in business.
Users will also never admit they have a problem—whether they want to “get their money back” or they want to “black” (steal) for themselves, they’ll definitely stick to the story.
At most, no one will be talking about it after 7 days—I've seen this happen more than 100 times.
China’s crypto survival rules: trust only yourself + don’t be greedy for small cheap gains + diversify assets across big platforms + use a cold wallet + manage permissions/approvals carefully + only use Apple devices.