The answer
Yes, if you previously granted its smart contract a token allowance. Disconnecting a front-end session does not automatically revoke on-chain approvals.
What to do next
Inspect allowances with a trusted explorer or revocation service, choose the correct chain and revoke permissions you no longer need. Recheck after confirmation.
Revoke.cash
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Ledger hardware wallet
Relevant hardware-backed signing for supported assets; it does not eliminate gas fees, contract vulnerabilities or approval risks.
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Frequently asked questions
Do token allowances expire when I close the browser?
Usually not. Many allowances persist until revoked or otherwise changed on-chain.