Introduction to Packet Capture and Intrusion Detection/Prevention Systems

You are a network analyst on the fly-away team for the FBI’s cyber security sector engagement division. You’ve been deployed several times to financial institutions to examine their networks after cyber attacks, ranging from intrusions and data exfiltration to distributed denial of services to their network supporting customer transaction websites. A representative from the Financial Services Information Sharing and Analysis Center, FS-ISAC, met with your boss, the chief net defense liaison to the financial services sector, about recent reports of intrusions into the networks of banks and their consortium.