Cybersecurity is the practice and knowledge of protecting information online. Cybersecurity course can be defined as keeping your personal information secure when you surf the internet, visit your favourite websites and follow social media pages. Companies can also keep customers' information secure when they enter personal details or purchase items from their websites. It can also include penetration testing and network security analyses to ensure that the most important information is safe. Cyber Security is designed to protect clients' email and files from hackers. Clients can have their security systems analyzed by analysts. Cyber security can include everything from better password protection to nuclear code safety.