Best Buy customers affected by same data breach as Sears, Delta

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Electronics retailer Best Buy now says some of its customers' credit card information has been impacted following a data breach.

It is reportedly the same data breach that also affected customers of Sears and Delta Airlines.

The three companies all use the same third-party firm that provides online and mobile chat services to customers.

That firm, [24]7.ai, revealed it had an "illegal intrusion", between Sept. 27 and Oct. 12 last year.

In a blog post, Best Buy says it appears only a small fraction of its customers might have been affected.

Sears says fewer than 10,000 of its customers were exposed. Delta could not determine how many.