Depends. Is this granting a third party the authority to use the access device or is this an access device obtained through robbery or fraud?
"We are assuming several of these transactions weren’t actually authorized by her individually, but by the fraudsters who have been provided with her account information."
This statement from the OP leads me to conclude it is an access device obtained through robbery or fraud. For example, I call you to tell you that you won a prize and I just need your debit card number and internet banking credentials so I can credit your account. You provide them and I use the info to originate several unauthorized charges. In this scenario, the customer never actually authorized any purchases therefore 2(m)-2 would not apply.
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