BLU Products has identified and removed a recent security issue caused by a 3rd party application which had been collecting unauthorized personal data in the form of text messages, call logs, and contacts from customers using BLU mobile devices. The affected models were the following:

R1 HD
Energy X Plus 2
Studio Touch
Advance 4.0 L2
Neo XL
Energy Diamond

BLU said that the affected application has since been self-updated and the functionality verified to be no longer collecting or sending this information.

Blu is the largest manufacturer of unlocked cell phones in the US, having sold over 5 million of them in 2015, according to eMarketer.