Which case does NOT represent a sniffing activity?

Group of answer choices

Anna observes a legitimate increase in network traffic after the launch of a company$-$wide software update.

Anna, suspicious of a security flaw, confirms that a server is being targeted by a sniffer tool to harvest confidential communications.

In response to a tip$-$off, Anna discovers a hidden software tool on the network capturing login credentials as they are transmitted.

Anna tracks down an unauthorized access point connected to the network that is clandestinely collecting data from passing traffic