Sandra has used Ethereal, a packet sniffer, to listen in on network transmissions. She has captured several passwords. What type of attack has been performed on her network?

A.
An active attack

B.
A man-the-middle attack

C.
A session hijacking

D.
A privilege escalation attack

E.
An illicit server attack

Explanation:
The type of attack described above is a man-in-the-middle attack.