What you need to know:
Many residential buildings have become outfitted with keyless access technology that uses fobs, pin codes, smartphone apps or even biometric recognition technology.
Many of these buildings collect and store data on when you enter and exit the building. In addition, some smart home devices may give landlords access to your utility data such as heat, electricity and wi-fi usage.
Finally, many residential buildings have security cameras installed outside the building and/or in the hallways. This type of surveillance and data collection is minimally regulated and can be used by landlords however they like.
One such potential use of this data is for landlords to build a case against tenants residing in rent-controlled or stabilized units (which exists in five states in the US), to prove it is not their primary residence in order to evict them.
What to do:
Speak to your landlord about how they are utilizing the data and ask for a copy of your data if possible.