https://arstechnica.com/tech-policy/2020/03/analytics-firm-harvested-ios-android-user-data-with-vpn-apps-report-finds/ > Generally, if someone is installing a VPN or ad-blocker on their mobile phone, they're doing it to increase their privacy. But several apps distributed by an analytics firm that hid its connection to them have been doing the exact opposite, instead siphoning data from millions of users, a new report finds.