Cybersecurity basics
Start learning and stay safer online. Explore practical, sourced articles from the CyberVaultech notebook.
Antivirus vs EDR: What Is the Difference, and Does a Small Business Need Both?
Antivirus focuses on preventing and detecting malicious files and behavior; EDR adds endpoint telemetry, investigation, and response. Learn where each fits.
Read articleCan You Learn Cybersecurity Without Coding? What You Actually Need to Know
You can begin cybersecurity without programming. Learn which roles need code, which fundamentals matter first, and how to build practical automation skills gradually.
Read articleDoes a VPN Protect You From Hackers? What It Stops—and What It Cannot
A VPN protects traffic on part of its journey, but it cannot stop phishing, malware, unsafe accounts, or a compromised device. Learn where it helps.
Read articleHow Can You Tell If a Website Is Safe? 12 Checks That Matter Beyond the Padlock
Learn how to judge a website using its real domain, browser warnings, reputation, payment behavior, permissions, and claims—not the HTTPS padlock alone.
Read articleHow Do You Start Learning Cybersecurity in 2026? A Practical Beginner Roadmap
A practical cybersecurity roadmap: choose a role, learn systems and networking, build an authorized lab, document projects, and turn study into demonstrable skill.
Read articleHow Does DNS Work—and How Do DNS Spoofing and Hijacking Attacks Succeed?
Follow a DNS lookup from browser to authoritative server, then learn how spoofing, hijacking, malicious resolvers, and domain takeover alter the result.
Read articleHow Does Encryption Work? Keys, Algorithms, and Everyday Examples
Understand symmetric and asymmetric encryption, hashing, digital signatures, TLS, device encryption, and why key management matters more than secrecy of the algorithm.
Read articleHow Does Ransomware Spread? The Attack Chain and the Controls That Break It
Follow a modern ransomware intrusion from initial access to data theft and encryption, and learn which defensive controls can interrupt every stage.
Read articleIs Public Wi-Fi Safe in 2026? What HTTPS and a VPN Actually Protect
Public Wi-Fi is usually safer than old warnings suggest—but not risk-free. Learn what HTTPS protects, when a VPN helps, and which threats remain.
Read articleMalware vs Virus: What Is the Difference, and Which One Infected You?
A virus is one kind of malware. Learn how viruses differ from worms, trojans, ransomware, spyware, and fileless techniques—and what to do about an infection.
Read articleWhat Does a Firewall Actually Do? Rules, Limits, and Real Examples
Learn how network, host, and application firewalls make traffic decisions, why open ports are not automatically vulnerabilities, and what firewalls cannot stop.
Read articleWhat Is a DDoS Attack? Why Websites Go Offline and How Defenses Work
Understand volumetric, protocol, and application-layer DDoS attacks, why blocking one IP fails, and how layered mitigation keeps services available.
Read articleWhat Is a SIEM? How Security Teams Turn Logs Into Investigations
A SIEM centralizes and analyzes security-relevant events. Learn its pipeline, detection examples, limitations, and how to avoid an expensive log graveyard.
Read articleWhat Should You Do After a Data Breach? A Personal Damage-Control Plan
Learn how to respond when a company reports a breach: identify exposed data, secure related accounts, monitor identity and money, and avoid follow-up scams.
Read articleWhat Should You Do After Clicking a Phishing Link? A First-Hour Checklist
Clicked a suspicious link? Use this calm, practical checklist to contain the risk, protect accounts, preserve evidence, and report the incident.
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