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• The Associated Press reports that Los Angeles prosecutors are suing four national retailers - JC Penney, Sears, Kohl’s and Macy’s - "accusing them of duping shoppers into believing they got bigger discounts than they actually did."

According to the story, prosecutors say that "the retailers falsely advertised higher regular prices for merchandise so customers believed they were getting bigger bargains. California law bars retailers from advertising a higher original price unless the product was sold at that price within three months of the ad ... The lawsuits seek civil penalties up to $2,500 for each violation and injunctions to stop so-called false reference pricing to increase sales."

• The Financial Times reports that Tesco Bank "left its customers exposed to cyber crime by issuing sequential debit card numbers, a practice most banks avoid because it lets hackers remain undetected while working quickly through thousands of accounts, according to rival lenders."

What was called a "sustained cyber attack" - and a "heist described as unprecedented by regulators" - on Tesco Bank last month forced the company to repay the equivalent of $2.6 million (US) to some 9,000 customers.

Tesco has not commented on the precise circumstances behind the theft, only saying that no customer data was stolen.
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