By AP Technology Writer
updated 4/6/2011 8:59:32 PM ET 2011-04-07T00:59:32

The company at the center of a data heist involving Best Buy, Citigroup, and other major brands says that the theft of potentially millions of names and email addresses won't significantly slow its email marketing juggernaut.

Epsilon, a subsidiary of Alliance Data Systems Corp., was the victim of a hacking attack that triggered scores of public warnings this week from major retailers, banks and others.

Epsilon sends more than 40 billion emails a year on behalf of more than 2,500 companies, for things like loyalty rewards programs.

In a statement Wednesday, it reiterated that Social Security and credit card numbers weren't compromised. Epsilon President Bryan Kennedy apologized for the inconvenience and the "phishing" emails that victims are receiving.

The company says its email volumes aren't expected to be significantly impacted.

Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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