Online Security refers to the measures and practices implemented to protect computers, networks, and data from unauthorized access, cyberattacks, and damage that can occur while using the internet. It encompasses a range of security protocols, tools, and technologies designed to safeguard sensitive information, maintain privacy, and ensure the integrity of online transactions and communications. Key components of online security include the use of firewalls, antivirus software, encryption, secure passwords, multi-factor authentication, and best practices for safe browsing. It also involves awareness of potential threats such as phishing, malware, and identity theft, and adopting strategies to mitigate these risks. Overall, online security aims to create a safe digital environment for users and organizations.