WiFi: The Weak Link in Network Security

Information Security Technology
Risk Management

Financial institutions need intrusion detection systems that incorporate wireless

The biggest credit-card hacking incident in history exploited a weakness in wireless network security that could have easily been fixed. The lesson for financial institutions is to plug all such weaknesses before wrongdoers discover them.

TJX Companies, owner of T.J. Maxx and other retail brands, says that at least 45.7 million credit and debit cards were compromised over several years.

Intruders gained access to TJX’s computer systems beginning in 2005 and continuing until January 2007. Although debit card PINs weren’t compromised, unencrypted magnetic stripe data, also known as “track 2 data,” was stolen on transactions that occurred before September 2003, the company said.

Investigators believe hackers used handheld de

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