Man in the Middle Attack
By Stephen Bucaro
In a Man in the Middle (MIM) attack the hacker places eavesdropping equipment
between the sending device and the receiving device. He intercepts the data,
records it and possibly modifies it, then sends it on to the intended receiving
device. The attack is especially successful if neither the sender nor the receiver
are aware that their data has been compromised.
In a MIM attack the attacker might insert a fake router into the communication
media. The fake router routes packets from the sender's IP address to his
eavesdropping equipment. He then records the data and possibly modifies it.
Then he routes the packets back to the communication media, making sure the
"hop" caused by his fake router is not recorded and the source in the packets is
the original senders IP address. The sender and receiver have no knowledge that
their data has been intercepted.
The defense against MIM attacks is to use strong data encryption. Strong data
encryption requires that the encryption key be verified by a trusted third party
called a Certificate Authority (CA).
More Network Security Articles:
• How to Secure Your Wireless Network
• Secure, Network Compliant BYOD (Bring Your Own Device) Solutions
• Multi-Layered Approach to Cyber Security
• Security Issues with Wireless LANs
• The Use of HoneyPots and HoneyNets to Trick Hackers
• How to Tell if Someone is Lurking on Your Wireless Network
• Designing Physical Network Security
• Man in the Middle Attack
• Wireless Network Security - The Basics of Securing a Wireless LAN
• Public Key Infrastructure
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