Get the extension What is an authz grant in Cosmos?
authz is a Cosmos SDK module that lets one account (the granter) authorise another (the grantee) to send certain messages on its behalf, within limits and until an expiry date. Auto-compounding services use it to restake rewards for you.
Why it matters
A broad grant, such as a generic authorization to send tokens, lets the grantee move your funds without asking again. Phishing sites disguise such grants as routine staking actions.
How Locker Protocol Wallet handles it
Locker Vault shows an authz grant in red on its review screen, so it cannot pass as an ordinary signature. Read who receives the permission and what it covers before you approve.
Questions
How do I revoke an authz grant?
Send a revoke message (MsgRevoke) for that grantee and message type, from a staking dashboard that supports it. It is a regular transaction and costs a small fee.
Are authz grants always dangerous?
No. A narrow grant, limited to restaking with a validator you chose and with an expiry date, is how auto-compounding works. The danger lies in broad or permanent grants to accounts you do not know.