DIY, or Do-It-Yourself, refers to the practice of creating, modifying, or repairing things on your own, rather than relying on professionals. In technology and cybersecurity, DIY often involves building or customizing tools, devices, or software using readily available resources. This can include repurposing parts from existing equipment or using open-source materials to meet specific needs. DIY empowers individuals to innovate, learn new skills, and solve problems independently, but may also introduce security risks if not done carefully.