Well, Wells Fargo has done it. Back in November Aunty told you about the increase in ATM machines running on Windows. (Yes, Aunty realizes that “ATM machines” is redundant, but many people know them by that name?)

Now, Wells Fargo has announced that it has just completed switching 6,200 ATMs over to a Web-based Windows system. Think about that. More than 6,000 Wells Fargo automatic teller machines in 23 states, running on Windows. The security of your money, your personal banking information, if you ever bank with or through a Wells Fargo ATM, entrusted to a Windows system.

This move is going to cause ATM fraud to increase, according to Avivah Litan, an analyst for Gartner, citing the “combination of stealing ATM numbers online and creating counterfeit ATM cards to use off-line,” and adding that the move to Windows-based ATM systems is “not great news for the security of the system. I’m sure there’s a lot of holes that will be created because of this.”

[Windows Of Opportunity For ATM Fraud Increase As Wells Fargo Boots Up More Than 6000 Windows ATMs, continued]