AP Photo/Julio Cortez
- Walmart has spent months testing and rolling out a facial recognition tool to verify its Spark drivers.
- But some say the feature didn't recognize them, leading Walmart to deactivate their accounts.
- Some Spark drivers appear to be using accounts under other peoples' names, Business Insider previously reported.
Last Thursday, Walmart's Spark app prompted Chastity Lopez to take a picture of her face to verify that she was the one using her account.