Poor Wi-Fi controls and security enabled TK Maxx data theft

A failure to properly secure company wireless network points allowed thieves to hack into its network and access key databases, claims Wall Street Journal report.

The on-going investigation into how hackers were able to access and extract sensitive customer financial data from clothing retailer TK Maxx has taken another twist after a Wall Street Journal report claimed the theft took place via a poorly secured Wi-Fi network.

Thieves stole 45 million UK and US customer records from TK Maxx in December last year.

The WSJ report claims that investigators now believe the biggest known theft of credit-card numbers in history began two years ago outside a Marshall's clothing store in Minnesota. The hackers pointed a telescope-shaped antenna toward the store and used a laptop computer to decode data streaming through the air between handheld price-checking devices, cash registers and the store's computers.

The data they acquired enabled them to gain access to the central database of Marshall's parent company, TJX, which also owns TK Maxx.

It seems that the compromised wireless network was protected using WEP (Wired Equivalent Privacy) encryption, one of the weakest forms of Wi-Fi security that can be cracked in as little as three seconds. WEP was succeeded by WPA (Wi-Fi Protected Access) in 2003, a much more secure system that combines encryption with strong access controls and user authentication.

Once they had access to the system the hackers were able to track unencrypted data sent to banks, WSJ claims, and even left encrypted messages on the TJX servers so that each member of the group knew which files the others had copied.

TJX has yet to respond to the allegations.

Featured Resources

Managing security risk and compliance in a challenging landscape

How key technology partners grow with your organisation

Download now

Evaluate your order-to-cash process

15 recommended metrics to benchmark your O2C operations

Download now

AI 360: Hold, fold, or double down?

How AI can benefit your business

Download now

Getting started with Azure Red Hat OpenShift

A developer’s guide to improving application building and deployment capabilities

Download now

Recommended

Best ransomware removal tools
ransomware

Best ransomware removal tools

22 Jan 2021
Hackers publish over 4,000 files stolen from SEPA in ransomware attack
Security

Hackers publish over 4,000 files stolen from SEPA in ransomware attack

22 Jan 2021
Weekly threat roundup: SAP, Windows 10, Chrome
vulnerability

Weekly threat roundup: SAP, Windows 10, Chrome

21 Jan 2021
Biden nominees highlight tough cyber security challenges
cyber security

Biden nominees highlight tough cyber security challenges

20 Jan 2021

Most Popular

School laptops sent by government arrive loaded with malware
malware

School laptops sent by government arrive loaded with malware

21 Jan 2021
How to move Windows 10 from your old hard drive to SSD
operating systems

How to move Windows 10 from your old hard drive to SSD

21 Jan 2021
What is the Raspberry Pi Pico?
Hardware

What is the Raspberry Pi Pico?

21 Jan 2021