Most airdrop losses don't come from fake protocols. They come from a signature you approved without reading it, on a link you found in a reply thread at 2 a.m. The claim page was real. The approval wasn't. This guide walks through the exact sequence that keeps a drainer from touching your savings.
Step 1: Set up a burner wallet
Your first decision happens before you open any claim page. Create a fresh wallet that holds only gas money. Fund it with a small amount of the chain's native coin — enough to cover a few transactions, not enough that losing it hurts. On most chains, that means a few dollars' worth, not a few hundred.
Why a separate wallet matters
Wallet-drainer scripts work by getting you to approve a malicious contract. If that wallet holds your savings, the approval can empty it. A burner caps your exposure at whatever you funded it with. That's the whole trick.
What to put in it
- Gas tokens for the chain the airdrop lives on (ETH, BNB, or the network's native coin)
- No stablecoins unless the claim specifically requires them
- No NFTs from your main collection, ever
Keep the seed phrase offline. A screenshot in your gallery is a seed phrase handed to anyone who ever gets your phone.
Step 2: Verify the claim link
Official links come from official channels: the project's verified X account, its docs site, or an announcement you can trace back to the source. Not a Telegram DM. Not a comment under a post. Not a "support agent" who found you first.
The cross-check habit
Open two sources at once. If the project's X account and its docs both list the same URL, you're on solid ground. If one source appears only in a DM, close it. Real projects don't need to slide into your inbox.
Spotting a fake claim page
Look at the domain character by character. Attackers register lookalikes with swapped letters or extra hyphens. A page that asks you to "connect and sign to verify eligibility" before showing any amount is a red flag, not a feature.
Step 3: Read the signature, then simulate
Every wallet shows a transaction preview. Read it. A claim should ask for a signature that costs gas, or a permit that does one specific thing. If the preview shows "approve all" or an unlimited allowance to an address you don't recognize, stop.
Here's a scenario worth remembering. A trader in early 2024 chased a rumored drop, connected to a page from a reply, and signed an unlimited approval. The claim itself was worth about $12. The drainer took the rest of that wallet's tokens within seconds. The gas cost of the real claim was around $40 on that chain, which should have been the first clue something was off. He paid more to claim than the reward was worth and lost the balance on top.
Use a simulation tool
Block explorers and wallet extensions can simulate a transaction before you confirm. Run it. If the simulation shows tokens leaving your wallet that aren't gas, don't sign.
Revoke old approvals
After a claim, check your approvals and revoke anything you didn't intend to grant. A single unlimited approval can sit dormant for months before someone uses it.
Step 4: Confirm the reward is worth the gas
Not every "airdrop" is worth claiming. Check the token's contract address against the project's official channels, and check whether the token is tradeable or locked. A reward you can't sell is a screenshot, not money.
| Signal | Safe | Risky |
|---|---|---|
| Link source | Official docs or verified account | DM, reply, or ad |
| Contract address | Matches official listing | Unknown or copycat |
| Signature requested | Gas only, or one specific permit | Unlimited approval |
| Wallet used | Burner with minimal funds | Main wallet with savings |
On a platform like MGBX, you can check whether a token is listed and what its market looks like before deciding the claim is worth the gas. That step takes two minutes and saves you from paying to receive something nobody will buy.
Common questions
Can claiming an airdrop drain my whole wallet?
Yes, if you sign a malicious approval from a wallet that holds your savings. A drainer can only take what the connected wallet can access, so keep that wallet small and your main funds elsewhere.
How do I know if a claim page is fake?
Check the domain against the project's official docs and verified social account, and look for lookalike spelling. A page that demands a signature before showing eligibility, or that came from a DM, is almost certainly fake. When two official sources agree on the URL, you're on safer ground.
Do I need to pay gas to claim an airdrop?
Usually yes, because the claim is an onchain transaction. The cost varies by chain and network conditions. Before you pay, confirm the reward is tradeable and worth more than the gas. If claiming costs more than the token is worth, walking away is the correct move.
What should I do right after claiming?
Revoke any approvals you didn't intend to grant, and move any valuable tokens out of the burner wallet. Then check the token's contract against official listings before you try to sell. A quick approval cleanup after every claim keeps your exposure low over time.
Do this now
Open your wallet settings and create one fresh burner address. Fund it with a small amount of gas and nothing else. Bookmark the docs page of the next project you plan to claim from, so the link you use later comes from a source you already trust — not from whoever replies first.