NGOs are increasingly using GPS trackers to monitor the location and status of their staff in the field. When used correctly, trackers can help an organisation meet its duty of care obligations and provide staff in the field with a lifeline in the event of a security incident, such as a kidnapping. However, to work as intended, the right GPS tracker, secure tracking platform and monitoring and response must all be used together. If one side of this ‘tracking triangle’ is missing or inappropriate, then trackers will provide nothing more than the illusion of security.