TJX will face a lawsuit from three banking associations as well as individual banks. The Massachusetts Bankers Association is inviting others to join the suit.
The Payment Card Industry data security standard comprises 12 rules set by the major credit card firms including Visa and Mastercard, enforcing the protection of credit card data.
Attackers could exploit about two dozen flaws in Mac OS X to cause a denial of service, bypass security restrictions, disclose sensitive data and run malicious code.
The Salvation Army has installed software to control the use of USB flash drives on its systems after discovering a rise in the number of staff plugging unauthorised memory sticks into the network.
Barclays' roll-out of handheld card readers to 500,000 online banking customers has been welcomed for raising security awareness among consumers, but it may do little to stop real-time phishing attacks, security experts have warned.