How I Got My Wallet Drained — And How to Never Let It Happen to You

It happened fast. One click, one approval, and my wallet was empty. No dramatic hack, no sophisticated exploit — just me, not paying attention, on what looked like a perfectly normal site.

I am writing this not because it is fun to admit, but because it is probably the most useful thing I can share. Wallet drains are the number one way beginners lose money in crypto — not bad trades, not market crashes. A fake site or a malicious approval.

What actually happened

I was looking for a new DeFi protocol I had seen mentioned somewhere. I Googled it, clicked the top result (which turned out to be a sponsored ad, not the real site), and connected my MetaMask wallet. The site asked me to “approve” a transaction to “verify my wallet.” I clicked confirm. Thirty seconds later, every token in that wallet was gone.

The attacker had bought a Google Ad for the fake site. It looked identical to the real one. The URL was off by one character. I did not check.

How wallet drains work

When you connect a wallet to a DeFi site and sign a transaction, you are giving that contract permission to move your tokens. A legitimate protocol will request limited, specific permissions. A drainer requests unlimited approval on all your assets — and then immediately sweeps them to an attacker wallet.

The approval looks like a normal MetaMask popup. Nothing screams danger. That is the point.

The checklist I follow now — every single time

• Never use Google to find DeFi apps. Bookmark the real URL directly. Attackers buy ads for fake sites specifically because people Google them.
• Check the URL character by character before connecting. Fakes often use look-alike characters (e.g. uniswap.org vs unlswap.org).
• Read every transaction popup before clicking confirm. If it says “approve unlimited spend” on a site you just found — stop.
• Use a separate wallet for DeFi experiments. Keep only the funds you are actively using in it. Your main holdings go in a hardware wallet (Ledger, Trezor) that never touches DeFi.
• Revoke approvals regularly. Use revoke.cash to see every approval your wallet has given and remove the ones you no longer need.
• Hardware wallet for anything significant. If a transaction requires physical confirmation on a hardware device, a malicious website cannot silently drain it.

Tools worth knowing

• revoke.cash — shows all active approvals on your wallet, lets you revoke them
• wallet-guard.app — browser extension that warns you before connecting to known malicious sites
• Pocket Universe — simulates transactions before you sign them so you can see what will actually happen

The uncomfortable truth

There is no insurance in crypto. No bank to call, no chargeback, no one to reverse the transaction. When it is gone, it is gone. That is the trade-off for having full control over your own money.

The good news: this is entirely preventable. Not through technical knowledge — just through habits. Slow down before you click confirm. One extra minute of checking has saved me many times since.