Transcript for List of Retailers Hacked Grows
growing list of stores where millions of americans had their credit card information stolen. First target, last night we reported on neiman marcus here. Now comes word it could be the tip of the iceberg. Here's abc's aditi roy. Reporter: The list of retailers hacked over the holidays is growing. Reports tonight that at least three other well-known u.S. Retailers had customer credit and debit card information compromised. Those stores have not been publicly identified, but they are associated with outlet malls. If your information has been breached, you need to know about it. Reporter: This comes on the heels of target announcing a massive data breach of up to 110 million customers. And neiman marcus saying its investigating stolen credit card information from its customers over the holidays. The best way to protect yourself? Check your credit report. Monitor your bank statements for fraudulent activity and if you see any unusual charges, report it. You will be reimbursed by your bank or card company. Authorities are investigating whether the cyber attacks are linked. Officials suspect the hackers are from eastern europe.
This transcript has been automatically generated and may not be 100% accurate.