It has been reported by TechRadar and other publications that over 100 million devices, such as smartphones, have been infected with an intrusive adware that operates in the background without the knowledge of the device owner and/or end user.
Read more at Purism: https://puri.sm/posts/how-pureos-can-stop-devices-from-being-infected-with-intrusive-adware?mtm_campaign=promo&mtm_source=organic&mtm_medium=forum&mtm_content=f-how-pureos-can-stop-devices-from-being-infected-with-intrusive-adware