Assassin bugs prefer to spend their time where they are more likely to find prey to feed on, so they are typically found outside the home and are not typically aggressive towards humans. However, they can find their way indoors through openings such as open windows or gaps around doorways and windows.
Assassin bugs are nocturnal and may be attracted to nighttime lights. A single assassin bug in the home is not necessarily a cause for extreme alarm. However, the presence of nymphs, the unwinged stage of the bug, or numerous adult kissing bugs in your home may be signs of an infestation.