Both YouTubers, penguinz0 and Coffeezilla, said they had tried to contact Trump Mobile about the incident but were unable to, having only purchased the phones out of curiosity rather than to support the company or for interest in using the device.

“I know that because sadly I am one of those customers whose mailing address, email address, you know, everything short of credit card number is being leaked,” Coffeezilla said.

“Do not order on trumpmobile.com unless you’re ready for your information to be leaked. It’s basically that bad.”

Penguinz0 said: “All of us have been met with radio silence.”

Both YouTubers remained silent on how the data was accessed, as it is still available and easy to access.

According to reports, data includes names, email addresses, mailing addresses, mobile phone numbers, and order identifiers.

Walker said the exposure was linked to a third-party firm that supports “certain Trump Mobile operations”. He did not, however, name the third party in question.

He also added that the company was investigating whether it needs to send impacted customers a notification of the incident and the compromise of their personal data.

The T1 has faced major controversy since it was announced, with the leak revealing that despite the news of 590,000 preorders, only 30,000 people ordered it.

It was also promised as a “Made in the USA” phone, a phrase that still features on its website. However, Trump Mobile executives Eric Thomas and Don Hendrickson confirmed with The Verge that the phone is not American-made, and instead said that the production was being done by a “favoured nation”, and would go through a “final assembly” stage in Miami that “apparently involves putting together the final 10 or so pieces,” according to the publication.