My back really went cold. The day before yesterday, I witnessed a case of "Invisible Coin Theft" firsthand.

A friend of mine transferred 200U to someone using the recipient's provided address, but the funds didn't arrive for a long time. After double-checking, we found out—the address had been tampered with! The money went directly into the hacker's account and could never be recovered. Luckily, the amount wasn't large; if it had been a big sum, it would have been terrifying.

This incident made me realize a serious problem: many people click on unknown links, and viruses are planted on their phones. It may not be noticeable at first, but once you copy a cryptocurrency address, the virus quietly replaces it in the background with the hacker's address. You appear to be operating normally, but in reality, the money is gone.

Android systems are especially risky; due to Apple's closed system, the chance of infection is lower. However, that doesn't mean Apple is completely safe—awareness and caution are key.

So how to protect yourself? Here are a few must-remember tips:

**Before transferring, always verify the first and last few characters of the address.** Don’t just look at the middle part; viruses often modify that. For important transfers, use QR code scanning and try to avoid manual typing or pasting directly.

**Regularly scan and clean your Android phone.** Never click on unknown links, especially in Telegram groups and airdrop links—many of those contain viruses.

**Always test with a small amount before making large transfers.** This is a strict rule—don’t skip it just because it’s inconvenient.

More importantly, besides being cautious with operations, you should store your main assets in truly secure and stable places. With so many risks, stability becomes especially crucial.