Approval revocation
An onchain action that removes or reduces an existing token-spending permission.
In more detail
For an ERC-20 token, revoking commonly means setting a spender's allowance to zero. Once effective, this closes that route for future spending. It does not undo completed transfers, and is a different problem from replacing account control after a private key has been exposed.
How you might use it
"I stopped using that DEX. Setting its token allowance to zero removes that spending permission once the change takes effect."
Got a way to make Approval revocation click?
Add your takeBy Crypto Dictionary · Published · Updated
Go to the source
Use the original reference to explore the details behind this entry.
Read the referenceAn original explanation with a reference to follow. Protocol details and community usage can evolve. Sources & standards