What distinguishes the "Reset" action in a security policy from "Block"?

The "Reset" action in a security policy is unique because it immediately terminates an active session while simultaneously alerting both the sender and the receiver that the connection has been reset. This is particularly important in scenarios where timely termination of a connection is necessary to prevent any further data exchange or potential security threats. When a reset occurs, both parties receive a notification, allowing them to understand that the session has been forcefully closed.

In contrast to the reset action, simply blocking traffic does not provide any feedback to users. A "Block" action denies traffic but does not terminate the session in an obvious manner; it simply ignores the traffic based on the policy without notifying the users involved. The reset action also differs fundamentally from other options, as it does not selectively allow certain traffic through or target only incoming traffic; its focus is on the immediate termination of sessions with explicit notifications to both parties involved.