Epsilon E-Mail Hack: What You Need to Know

Names and e-mail addresses fell into the wrong hands last week, when affecting at least 19 of its client companies. It may sound scary, but don't panic. Here's what you need to know about the Epsilon e-mail hack:

What is Epsilon?

Epsilon is the world's largest permission-based e-mail marketer. Other companies, such as Best Buy, use Epsilon to send promotions or other e-mails to their customers. Naturally, the company has access to a lot of e-mail addresses.

What happened?

On March 30, an unauthorized party gained entry into Epsilon's system and accessed e-mails and customer names for a subset of Epsilon clients. If you're a customer of one of these clients, there's a chance that some hacker now knows your name and e-mail address.

Who is affected?