Financial institutions are permitted to freeze a customer's account if they believe that the account is at risk of being misappropriated or they suspect unauthorized activity. The institution's policies and customer agreements will discuss this option; for example, Bank of America's Deposit Agreement and Disclosures states, "If at any time we believe that your account may be subject to irregular, unauthorized, fraudulent or illegal activity, we may, in our discretion, freeze some or all of the funds in the account and in other accounts you maintain with us, and/or delay transactions, without any liability to you, until such time as we are able to complete our investigation..."
Financial institutions need to balance various federal and state consumer protection laws designed to protect account...