  Smart home devices have brought us many benefits such as advanced security,
convenience, and entertainment. However, these devices also have made
unintended consequences like giving ultimate power for devices' owners over
their intimate partners in the same household which might lead to
tech-facilitated domestic abuse (tech-abuse) as recent research has shown. In
this paper, we systematize findings on tech-abuse in smart homes. We show that
domestic abuse and Intimate Partner Violence (IPV) in smart homes is more
effective and less risky for abusers. Victims find it more harmful and more
challenging to protect themselves from. We articulate a comprehensive analysis
of all the phases of abuse in smart homes and categorize risks and needs in
each phase. Technical analysis of current smart home technologies is conducted
to shed light upon their limitations. We also summarize recent recommendations
to combat tech-abuse in smart homes and focus on their potentials and
shortcomings. Unsurprisingly, we find that many recommendations conflict with
each other due to a lack of understanding of phases of abuse in smart homes.
Desirable properties to design abuse-resistant smart home devices are proposed
for all the phases of abuse. The research community benefits from our analysis
and recommendations to move forward with a focus on filling the blind spots of
existing smart home devices' safety measures and building appropriate safety
measures that consider tech-abuse threats in smart homes.
