Introduction Every day, critical industry sectors like healthcare, government and utilities services rely on digital systems that are mission-critical but vulnerable to cyber threats. Yet, the professionals safeguarding these systems often go unrecognised. Imagine a hospital's life-support systems faltering during critical surgery, a school building’s security lockdown failing during an active threat drill or a state government's emergency response network collapsing during a natural disaster. These scenarios are daily hypotheticals faced by the unsung heroes of our digital age: the secure network and cyber security professionals who work tirelessly behind the scenes to ensure our networks stay online, ...