Is an airdrop that asks me to connect my wallet to claim free tokens safe?
No. Connect-to-claim airdrop sites are a common wallet drainer attack that empties your crypto holdings in seconds.
Last reviewed: 1 June 2026
Explanation
Malicious airdrop sites impersonate genuine blockchain projects, celebrity crypto launches, or exchange promotions. When you connect your wallet to claim the promised tokens, you unknowingly sign a transaction that grants the site permission to transfer all assets from your wallet. Wallet drainer smart contracts can sweep an entire portfolio in a single automated transaction before you realise what has happened. Legitimate airdrops from established projects are distributed automatically to eligible wallet addresses — they never require you to connect to an external site and sign a transaction. If a site asks you to connect a wallet to receive something free, it should be treated as a drainer until proven otherwise.
Common red flags
- Airdrop discovered via social media ad or DM
- Site asks you to connect your wallet to claim free tokens
- Transaction approval requests are vaguely worded or set to unlimited
- Project or token has no established presence before this announcement
- Urgent window to claim before tokens run out
What to do now
- Do not connect your wallet to an unfamiliar site
- If you connected, immediately revoke token approvals via your wallet's approval manager
- Move remaining assets to a new wallet address
- Report the site to the platform where you found it
Frequently asked questions
How do I revoke permissions after connecting to a suspicious site?
Use a token approval checker tool compatible with your wallet or blockchain. These tools show which contracts have spending permissions and let you revoke them. Act quickly — time matters.