Avast is a global consumer cybersecurity vendor that provides antivirus, VPN, password manager, identity protection, and PC tune-up software for home users, families, and small business owners across Windows, macOS, Android, and iOS devices. Marketed as antivirus and online security software, Avast combines next-gen antivirus and antimalware engines, Avast SecureLine VPN for private browsing, Avast Passwords manager, Avast BreachGuard identity monitoring, Avast Cleanup for PC and phone tune-up, ransomware protection, webcam and Wi-Fi inspector, parental controls under Avast Family Space, integrations with Microsoft Defender, plus free Avast Free Antivirus trusted by 435 million users. Avast is a strong fit for home users protecting family devices, parents managing child screen time and content filters, and small business owners securing endpoints without enterprise-tier costs.