From the course: CompTIA CySA+ (CS0-002) Cert Prep: 6 Incident Response

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Network forensics

Network forensics

From the course: CompTIA CySA+ (CS0-002) Cert Prep: 6 Incident Response

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Network forensics

- [Instructor] Forensic investigators are also often interested in the communications sent and received by targeted systems over a network. They may not have access to the system itself or may simply want to get a complete picture of a suspect's communications. That's where network forensics come into play. Network transmissions are digital, consisting of ones and zeros sent across some form of network media. Ethernet networks send electrical impulses over copper wire. Fiber-optic networks use pulses of light transmitted over strands of glass. And wireless networks use radio waves to send digital bits through the air. Whatever media is used, anyone with access to that media can capture those pulses as they travel. Copper and fiber-optic cables may be tapped. Wireless radio signals may be intercepted. Switches and routers can be compromised. An attacker might use these techniques to surreptitiously eavesdrop on network…

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