Radiological safety is the set of practices used to reduce exposure to ionizing radiation. It relies on three core ideas: control the source, increase distance, and use proper shielding or containment. In practice, that means limiting handling, keeping unknown items isolated, and involving trained personnel before anyone moves or inspects them.
In cyber security-adjacent spaces such as hacker events, swap meets, labs, and maker spaces, radiological safety matters because hazardous items can appear among ordinary gear. A radioactive source is not a curiosity or a normal collectible; it is a physical hazard that can contaminate surfaces, expose people, and trigger emergency response. Defenses include clear reporting paths, basic screening, restricted access to suspect items, and immediate escalation to qualified responders. The same principles also protect against theft, smuggling, and deliberate misuse of radioactive material.