Inadequate security premises liability holds property owners responsible when foreseeable criminal acts injure visitors due to insufficient protective measures. Foreseeability analysis examines prior crimes, neighborhood characteristics, and property features attracting criminal activity. Apartment complexes in high-crime areas face enhanced duties providing controlled access, lighting, and potentially security personnel. Parking lots and garages require adequate lighting, emergency phones, and security patrols based on crime history. Hotels must provide functioning locks, controlled access, and staff training for guest protection. Shopping centers balance customer convenience against security needs through various measures. ATM locations demand enhanced protection given inherent robbery risks. Prior similar incidents strongly establish foreseeability and notice requiring responsive measures. Security measures must be functional not just present, with broken cameras or unmanned stations providing false security. Industry standards help establish reasonable security expectations for property types. Causation requires showing security failures enabled criminal acts that proper measures would prevent. Understanding security duties helps crime victims recover from property owners whose negligence enabled preventable attacks.