This book explores the topics which are tested in the CompTIA CSA+ (Exam CS0-001). The author guides the reader on how to defend against the various cybersecurity attacks. The process of carrying out a reconnaissance on the organization's computer system so as to detect as vulnerabilities and attempted attacks has been explored. You are also guided on how to gather intelligence as far as cyber-attacks are concerned. Organizations should implement a vulnerability management program. This book helps you know how to design and implement a vulnerability management program in your organization. Once vulnerability scans are done, they should be analyzed. The author guides you on how to scan your organization systems to identify vulnerabilities and how to analyze the results from such scans. Although you may protect your systems from cyber-attacks, it is possible a cyber-attack may occur. Cyber-criminals only have to look for a single vulnerability in your systems and exploit it. This is why you should have an incident response program within your organization. This book helps you know how to stay prepared to respond effectively to cyber-attack incidents in order to reduce the amount of damage inflicted to the organization by the attack. The following topics have been discussed in this book: - Defending Against Cybersecurity Threats- Reconnaissance and Intelligence Gathering- Designing a Vulnerability Management Program Analyzing Vulnerability Scans- Building an Incident Response Program- Analyzing Symptoms for Incident Response- Forensic Analysis- Identity and Access Managemen