Description
Cyber security has become a vital discipline in today’s digitally connected world,
where information systems support communication, commerce, governance, and
critical infrastructure. With the rapid growth of the internet, cloud computing, and
smart technologies, protecting data and digital assets from evolving cyber threats has
become a fundamental requirement for individuals, organizations, and nations. This
book, Cyber Security, is designed to provide a clear and structured understanding of
the principles, practices, and challenges involved in securing modern computing
environments.
The book introduces the scope and need of cyber security by explaining core concepts
such as threats, vulnerabilities, risks, cyber crimes, attacker motivations, and ethical
and legal considerations. It offers a systematic overview of cyber attacks and
techniques, including network attacks, denial-of-service attacks, social engineering,
phishing, and malware, along with an introduction to vulnerability assessment and
penetration testing. These topics help learners understand how attacks occur and how
security weaknesses can be identified and mitigated.
Fundamental security mechanisms such as cryptography, public key infrastructure,
digital signatures, hash functions, and network security devices are explained to
build a strong technical foundation. The book also covers operating system security,
secure software development, web and database security, cloud security challenges,
and identity and access management, aligning academic learning with real-world
security practices. In addition, cyber forensics and incident response are discussed to
familiarize readers with investigation processes, evidence handling, and response
strategies.
