Alert on bridge signer changes
Bridge signers decide which cross-chain transfers are real. Whoever swaps the signer set approves their own transfers. SmartAlert finds signer change events in your contract's ABI and tells you about each one.
The rule
This is how the rule looks in the new-alert form. You enter the contract address when you create it.
Rule
from contract events- Watches
- Wormhole
GuardianSetAdded, AxelarOperatorshipTransferredandSignersRotated, HyperlaneValidatorEnrolled,ValidatorUnenrolledandThresholdSet, CelerSignersUpdated, and events likeSignerAddedorValidatorsUpdated - Fires
- On any event
- Severity
- Warning
- Speed
- After the network confirms the block, checked every 5 minutes
- Networks
- Ethereum, BNB Chain, Base, Arbitrum
- Plan
- Pro and above
TemplateOffered automatically if the contract ABI has such an event. On staking contracts, name matches do not count: there "validator added" is routine
Where it would have fired
Every rule can be checked on history before you turn it on: you see where it would have fired over the last days.
Where the alert goes
Telegram on every plan; Slack, Discord and webhook on paid plans. A new project gets Pro limits for 14 days, no card needed.
- TelegramFree
- SlackPro
- DiscordPro
- WebhookPro
Works on: Ethereum, BNB Chain, Base, Arbitrum. · Free plan: up to 3 rules.
How to enable
- 1
Add the bridge contract address.
- 2
Tick "Bridge: signers changed".
- 3
Pick a channel.
Why it matters
A bridge holds funds from several networks, guarded by a small signer set. The team knows about a planned rotation in advance; an unplanned one has to be seen before the first transfer the new set signs.
Related recipes
Alert on LayerZero setting changes for your OApp
SmartAlert tells you when your OApp's LayerZero peer, delegate, library, DVN or executor changes. Delegate and config changes are emitted by the LayerZero endpoint, not your contract.
Alert on oracle signer or price source changes
Get notified when a Chainlink or Pyth oracle's signers change or a lending protocol switches its price source. They decide how the protocol values collateral.
Try it on your own contract
Paste a contract address, pick the recipe, choose where alerts go. The first 14 days have Pro limits.