Today, Major problems for network administrators include the following:
• Packet snooping (eavesdropping)—When intruders capture and decode traffic obtaining usernames, passwords, and sensitive data, such as salary increases for the year.
• Theft of data—When intruders use sniffers, for example, to capture data over the network and steal that information for later use.
• Impersonation—When an intruder assumes the role of a legitimate device but, in fact, is not legitimate.
• Packet snooping (eavesdropping)—When intruders capture and decode traffic obtaining usernames, passwords, and sensitive data, such as salary increases for the year.
• Theft of data—When intruders use sniffers, for example, to capture data over the network and steal that information for later use.
• Impersonation—When an intruder assumes the role of a legitimate device but, in fact, is not legitimate.
