Consumer group finds security flaw in Tesco self-checkout

The Register: The United Kingdom consumer group Which? is reporting security shortcomings in Tesco's self-checkout systems that appear to make it easier to pay for groceries using stolen debit or credit cards.

At around 200 of the supermarket's stores, shoppers can scan their shopping items themselves before paying for groceries using cards. The problem is that Tesco doesn't require customers to sign for purchases or enter a PIN code.

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