SafePass

Bank of America Corp. customers can now use their mobile phones to make online banking more secure.

This option comes as part of a new service called SafePass, which was unveiled Monday by BofA. Customers will be able to sign up for SafePass to add an extra level of security for some banking transactions.

The SafePass system, which uses authentication technology developed by VeriSign Inc., sends a six-digit code to the customer's mobile phone. The code can be used only once, and it expires 10 minutes after being issued, making it harder for criminals to steal money from BofA accounts.