ChatGPT potentially exposed users' credit card info — what you need to know

ChatGPT logo on phone sitting on laptop with OpenAI logo
(Image credit: Shutterstock)

You might want to think twice about giving ChatGPT your credit card information.

The organization behind ChatGPT, OpenAI, published a blog post explaining it needed to take down the chatbot due to a bug that allowed some users to not only see another user’s titles from their ChatGPT history, as well as the first message of a new conversion with the chatbot, but also potentially exposed payment-related information. 

This eye-brow-raising bug might sound alarming. But in reality, it only affected 1.9% of ChatGPT Plus users across the nine hours it was active; for those unfamiliar with it, ChatGPT Plus is the premium version of the OpenAI chatbot. 

“In the hours before we took ChatGPT offline on Monday, it was possible for some users to see another active user’s first and last name, email address, payment address, the last four digits (only) of a credit card number, and credit card expiration date. Full credit card numbers were not exposed at any time,” explained OpenAI. “We believe the number of users whose data was actually revealed to someone else is extremely low.” 

On top of all of this, users would need to follow a rather convoluted process to actually see the exposed data. However, this does serve as a warning that it's early days for such ‘AI’ chatbots, and they may be just as susceptible to data breaches as regular websites. 

Talking out of turn  

Even though the ChatGPT bug has a rather minor impact, things could have been a lot worse. 

Imagine if ChatGPT Plus was in widespread use, say used by corporations to take care of tedious administration tasks. Such a bug could have exposed all manner of corporate data or the payment details of major companies. And if harnessed by opportunistic hackers, the bug could be used to wreak havoc. 

Now that’s all theoretical. But this bug is a sign that while innovation in chatbots can surge forward, it could come at the expense of robust security and data control. 

If Microsoft does indeed limit access to its BIng search index, which can be used to fuel chatbots, it could act as a bit of a gatekeeper for chatbot development, which could then make for a more secure situation. But this could then come at the expense of innovation. 

In short, this early AI chatbot revolution looks to be building momentum. But such a bug serves as a warning that bot developers need to walk rather than run with their AIs. 

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Roland Moore-Colyer

Roland Moore-Colyer a Managing Editor at Tom’s Guide with a focus on news, features and opinion articles. He often writes about gaming, phones, laptops and other bits of hardware; he’s also got an interest in cars. When not at his desk Roland can be found wandering around London, often with a look of curiosity on his face.