Sniffer technologies that enable real-time monitoring and analysis of data streaming via PC systems are used in system sniffing. Sniffers can be used for a variety of reasons, including data theft and system management. Sniffing networks are used for both ethical and immoral objectives. These are used by system administrators as a system monitoring and analysis tool to diagnose and avoid network-related issues such as traffic bottlenecks. Cyber thieves use these devices for nefarious objectives such as identity theft, email, and the theft of sensitive information.