Ettercap automates the malicious middleman

Man in the middle (MITM) attacks can be devastatingly effective, providing hackers with all kinds of confidential information and, just as seriously, giving them the opportunity to feed false information to victims. These attacks involve a hacker diverting packets which are meant to flow between a victim's computer and another machine - usually an Internet gateway – so that they flow through the attacker's computer, where they can be inspected and changed before being passed on.

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