Cybersecurity
6
stories in this section
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Cybersecurity Basics and Security Certification Prep
Security+ exam vorbereitung works best when it starts with one decision: confirm the current CompTIA exam code and objectives, then study from those objectives. No formal prerequisites apply, so beginners can start directly. The exam builds on networking basics, so readers still asking what is cybersecurity should settle that first and then use this guide…
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Penetration Testing Basics
What is penetration testing? It is a simulated cyberattack against a computer system to find exploitable vulnerabilities. It counts as testing only when the system owner has authorised it in writing, and a lab network is the safest place to practise. This guide explains how a test differs from a scan, how the stages run…
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Firewalls Explained
A new service is running, yet outside visitors cannot reach it. What is a firewall in that situation? It is a rule-based filter between networks or on a host, and its rules decide which traffic passes. The quick answer is that a firewall compares each packet with an ordered list of rules and applies the…
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Security Logging and SIEM Basics
Reader situation Where to start Planning use New to SIEM Collect, correlate, alert, store Learn how a raw event becomes an alert before opening any product. Mapping log sources Network devices, security devices, servers, applications, cloud List what can export logs, then add sources gradually because some vendors charge per data source. Practising log analysis…
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Phishing and Social Engineering Basics
So what is social engineering in cyber security? It is the art of manipulating people into giving up confidential information, by exploiting emotions such as fear, uncertainty and trust. Verifying any unexpected request independently is the core defence. The sections below follow an attack from first contact to the final request, then compare email, phone,…
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What Is Cybersecurity? What to Know
Effect or condition What it means Planning use Financial loss, identity theft, data breaches, physical harm Cyberattacks can harm people as well as machines Treat personal accounts and devices as real targets, not only company systems Disrupted operations and damaged reputation An incident can stop work and cost trust Plan how a business keeps running…