Best Buy customers part of Epsilon breach

Retailer Best Buy today told customers that files containing the "'email addresses of some Best Buy customers were accessed without authorization" due to a data breach at marketing firm Epsilon.

Best Buy becomes the latest customer of marketing firm Epsilon to make a disclosure that email addresses of customers have been stolen. Last Friday, JP Morgan Chase and the Kroger supermarket chain issued a similar warning to their customers, saying that unauthorized entry in to Epsilon systems had led to exposure of email lists to an attacker. Epsilon has said it learned about the data breach last Wednesday.

MORE ON EPSILON BREACH: Banking customers warned after Epsilon marketing firm breach

In its email warning to its customers, Best Buy today stated, "We have been assured by Epsilon that the only information that may have been obtained was your email address and that the accessed files did not include any other information. A rigorous assessment by Epsilon determined that no other information is at risk. We are actively investigating to confirm this."

In its warning to its customers, Best Buy said, "If you receive an email asking for personal information, delete it. It did not come from Best Buy."

Epsilon was not immediately available for comment about Best Buy's statement to its customers. Other Epsilon marketing customers include Brookstone, Ballard Design, KeyBank, Mrs.  and Mrs. Fields, Staples and TIAA-CREF, but no statements related to email lists have been made by these Epsilon clientele.

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