# GatePolicyBlacklist

* **Purpose:** Block explicitly denied actors from the same surfaces as the whitelist variant.
* **Guarded selectors & actor coverage:** Identical to `GatePolicyWhitelist`.
* **Config:** Node owner flags addresses with `add(node, actors)` and removes with `remove(node, actors)`.&#x20;
* **Behavior:** Reverts with `Blacklisted` if any checked participant is flagged.
