A kind of surveillance that is based on constant information gathering rather than purposefully targeted surveillance. Passive surveillance processes involve gathering a large amount of (often neutral) information, like a company collecting people’s phone records and internet data. A lot of services people use daily to gather information about their users: how they act, how long they use the service, or what features they prefer. Companies use this information to understand their client base, improve their products and services, or find new ways to make or save money.
It is impossible to completely avoid surveillance and make yourself 100% anonymous. But you can take various steps to minimize your digital footprint and protect your privacy.