You can access your bank account from mobile devices, but should you?

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Since the arrival of ATMs the role of the traditional brick-and-mortar bank has been changing.

We shifted from paper money to plastic, and now to digital numbers on your smartphone screen.

With mobile apps, customers can check balances on the go, transfer money between accounts or even deposit a check, without a bank employee ever touching it.

But that same information could be vulnerable to hackers.

"I think the banks really understand the risk involved, I'm not quite sure that everyone who uses a mobile device understands the power that that device has," warns McAfee's Michelle Dennedy.

A recent Pew study shows more than half of American adults are taking advantage of online and mobile banking, but "anywhere access" doesn't necessarily mean secured access.

Dennedy says you should never use open wifi networks when accessing financial information.

She also suggests checking your smartphone privacy settings.

Another simple, but often overlooked step, is securing your passwords.

"Make sure you don't save your passwords in your contacts list," she advises, "and if you do -- and you shouldn't -- please don't label it passwords. A lot of people are doing this and you're just handing your cash to strangers."

Potentially making your money even more mobile than expected.

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