A user can have more or less control over their device. There are many shades of gray between "I fully control my device" and "I don't control my device." When

A user can have more or less control over their device. There are many shades of gray between "I fully control my device" and "I don't control my device." When a change to the device software, like the introduction of on-device scanning, reduces the level of agency the user has over their data on their device, it's an adverse change that the user is justified to protest.