Numerous OnePlus 7 Pro owners reported that their devices received two spam notifications consisting of a random series of letters. OnePlus confirmed that the notifications were the result of an internal test, and that they were sent out to devices globally. It did not confirm how many devices had been affected.

In a statement posted on its forums, OnePlus said that the push notifications were related to internal tests of the company’s upcoming Android Q system update. It said that they were sent using the Google Firebase Cloud Messaging (FCM) Protocol, and reassured users that their personal data has not been compromised. The company confirmed it is implementing new processes to ensure that it doesn’t happen again.

Several OnePlus owners posted screenshots on Twitter showing the same two garbled messages, one consisting of Latin characters, and another with Chinese. Tapping on the messages reportedly caused the phone to attempt to open a browser which then couldn’t be found.

Did @oneplus just get hacked? What's up with these push notifications? Anyone else? pic.twitter.com/0Kox7AKosd — Nicole Scott in Berlin (@Nicole_Scooter) July 1, 2019

What is wrong with you @oneplus? Why these #spam notifications on my #OnePlus7Pro ?

Seems like someone is testing notifications on LIVE environment @OnePlus_IN @OnePlus_Support pic.twitter.com/N3zbyGp3Z8 — Akshay Tapase (@akshaytapase) July 1, 2019

Update July 1st, 7:40AM ET: Updated with further statement from OnePlus about the cause of the notifications.