In an era where data is often more valuable than oil, Information Systems Security (ISS) has evolved from a niche IT concern to the literal bedrock of modern civilization. But what exactly keeps the "invisible shield" intact? To understand security, we must look past the flashy headlines of hackers and hoodies and focus on the fundamental pillars that hold the structure together. 1. The Holy Trinity: The CIA Triad
Ensuring that systems and data are ready for use when needed. A secure system is useless if it’s crashed by a Denial-of-Service (DoS) attack. 2. The Human Element: Policy and People Fundamentals of information systems security
Ensuring that sensitive information is only accessible to those authorized to see it. Think of this as the "eyes only" rule. In an era where data is often more
Encryption—the final line of defense that renders data unreadable even if it is stolen. 4. The Logic of Access Control Who gets in
Secure coding practices and regular patching.
Who gets in, and what can they do? Fundamentals dictate two key rules here:
Identifying what assets you have, what threats they face, and how much you’re willing to spend to protect them.