Wallet acting strange? Here is how to check it safely
Reviewed 2026-06-25
Answer: If you see a transaction you did not make, do not panic — check first. Scan your wallet for risk flags and mixer links, then revoke any approvals you do not recognize before moving funds. Acting in panic often makes the situation worse.
Who this is for
If something looks wrong with your wallet, the single most important thing is to check before acting. Panic-moving funds or connecting new wallets without understanding what happened can make the situation worse. This page walks you through the verification steps, in order.
The problem
Something feels wrong. A transaction you do not recognize, an approval you did not grant, a balance that looks different. Before you move anything or connect a new wallet, you need to know what you are actually dealing with.
Most people only check after something goes wrong. A scan takes under a minute and surfaces the specific flags that matter — before you commit to any action.
Warning signs to watch for
- A transaction in your history that you did not initiate
- A token approval you did not grant, or one granted to an unknown contract
- Funds moved to an address you do not recognize
- You received a DM from a support account immediately after the issue appeared
- You recently signed a request on a site you now cannot find or access
Any one of these is a reason to check before acting. Several at once is a reason to stop entirely.
How to protect yourself
Scan your wallet address to see its full risk profile — exposure flags, mixer links, and known risky patterns — then revoke any approvals you did not grant. Stay calm and verify before taking any irreversible action.
- Open https://app.web3defender.tech and select the wallet scanner.
- Enter the address, token contract, or URL you want to check.
- Read the risk score and the specific flags returned.
- Revoke any approvals flagged as risky — revoke is a standard transaction.
- Re-scan after any new protocol connection or airdrop claim.
What the scanner checks
The wallet scanner runs against on-chain data and returns a 0–100 risk score with the specific flags that contributed to it. No off-chain assertions are trusted. No transaction is sent during a scan — it is entirely read-only.
For individuals, the free check covers the most common threats. For teams and funds, batch API access is available with structured output for compliance workflows and audit logs.
General habits that compound the protection
- Check before connecting — not after. A scan takes less time than it takes to regret skipping it.
- Revoke approvals to contracts you no longer use. Unlimited approvals that sit idle are the most common attack surface in DeFi.
- Open dApps from bookmarks or by typing the URL yourself — never from links in DMs, emails, or ads. The URL is the single most reliable signal you control.
- Treat urgency as a signal to slow down. Every social-engineering attempt creates false time pressure. If something feels rushed, that feeling is the warning sign.
- Verify independently. Legitimate services never DM you first or ask you to sign anything outside the official app.
Frequently asked questions
How do I know if a transaction was really unauthorized?
Check your wallet history on a block explorer. If you see transactions you did not initiate, or approvals you did not grant, either your seed phrase is exposed or you signed a malicious request. A wallet scan shows the specific risk flags.
Should I use the same wallet after something went wrong?
Not for significant assets if you believe your seed phrase is exposed. Create a new wallet with a fresh seed phrase on a device that was never connected to the compromised one. Move funds from unaffected wallets only.
What if I signed a request but nothing moved yet?
Check and revoke your approvals immediately. Some signatures grant a contract permission to move assets at any future time. Revoking closes that window before anything is transferred.
Is the scanner free to use?
Yes. A free check is available at https://app.web3defender.tech. No account is required for individual checks.
How long does a scan take?
Most scans complete in under fifteen seconds. Results include a risk score and the specific flags that contributed to it.