Cyber threats encompass a broad range of malicious activities designed to compromise systems, steal data, disrupt operations, or extort organisations. In Australia, cyber threats increasingly target small businesses, large enterprises, and critical infrastructure operators under the Security of Critical Infrastructure (SOCI) Act. These threats may originate from cybercriminal groups, insider actors, hacktivists, or nation-state adversaries. Examples include ransomware, credential harvesting, business email compromise (BEC), malware infections, and exploitation of unpatched software vulnerabilities. Managing cyber threats requires continuous monitoring, employee awareness training, robust access controls, and compliance with regulatory standards such as APRA CPS 234 and ISO 27001. A strong cyber security posture helps organisations mitigate cyber threats before they escalate into significant financial, operational, or reputational damage.