Cybersecurity for small business focuses on protecting smaller organisations from cyber threats despite limited budgets and internal IT resources. In Australia, small and medium enterprises (SMEs) are increasingly targeted by ransomware groups due to perceived weaker defences. Effective cybersecurity for small business includes implementing multi-factor authentication, regular data backups, endpoint protection, staff phishing awareness training, and alignment with the ACSC Essential Eight. Compliance with the Privacy Act and Notifiable Data Breaches scheme is also critical for many small businesses handling personal information. Managed security services can provide cost-effective monitoring and incident response support. Investing in cybersecurity for small business reduces financial risk, protects customer trust, and ensures operational continuity in a rapidly evolving threat environment.