Cybersecurity is the practice of protecting computer systems, networks, and data from unauthorized access, use, disclosure, disruption, modification, or destruction. It is a rapidly growing field that plays a critical role in protecting organizations and individuals from cyber threats such as hacking, phishing, and malware. The following is covered: Overview of the field of cybersecurity The various types of cyber threats The importance of cybersecurity in protecting organizations and individuals Firewalls Intrusion detection and prevention systems Network segmentation Security protocols such as SSL/TLS and HTTPS Encryption methods such as AES and RSA Authentication Authorization Single sign-on Incident response Threat intelligence Vulnerability management Malware types How malwares spread How to detect, prevent and remove malwares Social engineering tactics Phishing and Spear phishing How to detect and prevent Social Engineering attacks Compliance regulations such as PCI-DSS, HIPAA, and GDPR Best practices for meeting compliance requirements Security risks and best practices of cloud-based services such as AWS, Azure, and Google Cloud Incident response planning Incident response teams Incident response best practices