TJX’s wireless security was where the criminals got into its systems. Wireless is the ‘tip of the iceberg’ when it comes to what other security problems exist in most retail environments. The estimated cost of the data breach when the dust settles and the final tallies are in may still top $500 million. The banks that sued TJX didn’t necessarily want to sue the retailer, but as an issuer, they were forced to do, because of the huge number of cards that were involved in the breach.”]
Source: https://www.cuinfosecurity.com/tjx-analysis-court-case-would-have-been-pretty-a-655