WASHINGTON, D.C. -- Customers may not be able to access their bank accounts online.
Hackers are trying to prevent customers from going online to pay bills, look at their balances, and use other convenient tools on their accounts, according to John Carlson, Executive Vice President of the Financial Services Roundtable.
"This is not hacking, this is not stealing information, no unauthorized access to customer information. It's meant to disrupt," Carlson said.
Cyber attackers are targeting four national banks: Bank of America, PNC Bank, Wells Fargo, and Citigroup.
Brian Sullivan, program manager for the Inter-American Committee Against Terrorism, said this is likely to happen because of the Internet's availability.
"As we become more dependent on I.T. for our banking, government services, our communications -- we are increasingly vulnerable," Sullivan said.
If customers can't log on to their bank accounts on the Internet, they should call their bank providers, according to bank officials.