The Spring Festival holiday is coming soon, and many people are planning to travel abroad with their families. As a coin holder, it's definitely time to stay alert. Especially when using WiFi at places like airports and train stations, you could easily fall into a hacker's trap, and your assets in your wallet could be lost in an instant.

This type of attack is called Evil Twin, which sounds a bit sci-fi but is a real threat. Simply put, hackers set up a fake network at crowded places like airports, cafes, and hotels that has the same or very similar name as the official WiFi. When your phone connects, the hacker can see all your network traffic—including your private keys, wallet addresses, and transaction records—all under their watch.

Last year, Australian police caught a guy who set up a fake WiFi hotspot at an airport specifically to steal travelers' personal information. Although such cases may seem rare, they are actually much more common than you might think. Steven Walbroehl, founder of cybersecurity firm Halborn, clearly pointed out that Evil Twin attacks occur quite frequently in crowded places like airports, train stations, hotels, and conference centers. Why? Because people in these places are eager to get online, and their security awareness often drops. The security head of blockchain security company SlowMist, 23pds, also said that these kinds of attacks are "far more common than most people imagine," and "many people are falling for them."

Connecting to a fake WiFi doesn't necessarily mean your coins will be stolen immediately, but the risk is already very high. Hackers can intercept your seed phrase, private keys, and wallet addresses. They might not move your assets right away but instead collect information first and wait for the best opportunity to act. This potential threat hangs over your head, making it hard to guard against.

So, how can you protect yourself? First, before using airport or hotel WiFi, confirm the exact name of the official network with staff. Second, for operations involving asset security—such as transferring funds, withdrawing coins, or confirming wallet addresses—never do them on public WiFi. Even if it's inconvenient, wait until you're using mobile data or a secure network. Lastly, consider using a hardware wallet instead of a hot wallet for interactions in such environments; adding an extra layer of protection is always wise.

Ultimately, traveling abroad is enjoyable, but safeguarding your assets should be the top priority. An accidental connection could wipe out years of investment gains. So next time you see free WiFi at the airport, think twice— is it really worth taking that risk?