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Tesco’s website and app are up and running again after a suspected hack, which left thousands of customers unable to shop online at the weekend.
The outage, which left customers struggling to shop for groceries or track orders, began on Saturday morning and continued into Sunday.
A spokesperson said on Sunday night: “Our online grocery website and app are now back up and running. Our teams have worked around the clock to restore service, and we’re really sorry to our customers for the inconvenience caused.”
The supermarket chain said the problem was because of an attempt to interfere with its systems, but added there was no reason to believe customer data was affected.
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Customers were told they might need to enter a virtual waiting room before accessing the site as Tesco tries to manage the initial flow of traffic.
The planned measure is regularly used at peak shopping times to ensure customers have a smooth experience on the site, the company added.
The online issue left customers unable to make changes to pre-arranged orders and prompted a flood of queries to Tesco.
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