*HACKERS* MAJOR COMPANIES AFFECTED BY SECURITY BREACH!!

NEW YORK (WPIX)— 

There's no telling how many people have been affected by a massive electronic security breach. Hackers broke into the customer data of email marketing company Epsilonand accessed some of customers' personal information, including their emails.

The major U.S. companies reporting the security compromise include Citigroup, Walgreen's, TiVo, Capital One, Home Shopping Network (HSN), and possibly, some of the seven million students affiliated with the "College Board," the organization that does the SATs.

There are no reports that anyone's financial information has been compromised .

Other large companies Epsilon does business with include:Verizon, Hilton Hotels, Kraft Foods, and AstraZeneca.

If you've signed up for email newsletters for any of those companies, you could possibly be affected.

Some companies have already started alerting customers their personal emails may have been hacked, but others have yet to do so.

If you'd like to file a complaint with the New York State Attorney General's Office, click on this link, fill out the forms, and send the information in to the various agencies, as directed.