Japanese multinational automotive manufacturer Toyota said on Friday it had found that about 296,000 pieces of customer information from its T-Connect service might have been leaked.

Toyota said 296,019 email addresses and customer numbers of those using T-Connect, a telematics service that connects vehicles via a network, were potentially leaked. The affected customers are individuals who signed up to the service’s website using their email addresses since July 2017.

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Third-party access could not be confirmed from the access history of the data server where the information was stored based on security experts’ investigation, Toyota said in a statement.

At the same time, it added that third-party access “could not be completely ruled out.”

There was no possibility, though, that users’ sensitive personal information, such as names, phone numbers or credit card information, were leaked, Toyota said.

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