According to statistics, over 90% of private key theft cases are actually caused by simple reasons—phishing attacks targeting individuals.

The issue is clear: as long as a private key has been exported or imported, the risk of exposure always exists. In plain terms, the moment you handle it, you have already planted a hidden danger.

So what should you do? The most straightforward defense is actually to stop messing around—neither export nor import the private key. This is the most effective way to eliminate the root cause.

However, there is a misconception that needs to be clarified: whether you choose a custodial or non-custodial wallet ultimately does not change the fundamental issue of personal security. No matter how good the wallet or how advanced the technology stack, it cannot outweigh poor security habits. Ultimately, self-protection is the last line of defense.