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Cyber security fundamentals
How attacks work, in plain words: ransomware, phishing, malware and the flaws they use.
8 lessons
- What is malware? Malware is any software made to cause harm. The common kinds, how it gets onto a device, the signs to watch for and how to keep it out. Beginner 3 min read
- What is phishing? Phishing is a scam that impersonates someone you trust to get passwords, money or access. The main kinds, and why it keeps working. Beginner 3 min read
- How to spot a phishing email Six checks that catch most fake emails, and what to do in the first few minutes if you have already clicked. Beginner 2 min read
- How ransomware attacks work The three stages of a ransomware attack, how attackers get in, why they go after backups, and what to put in place before it happens. Intermediate 3 min read
- What is a software vulnerability? A vulnerability is a weakness in software that an attacker can use. Where they come from, how a patch closes one, and how fast to install it. Beginner 3 min read
- What is a zero-day vulnerability? A zero-day is a software weakness that attackers can use before a fix exists. What that means for a business, and what protects you meanwhile. Intermediate 3 min read
- What is a CVE? A CVE is the public reference number for one security vulnerability. Who assigns them, how to read one, and what a severity score adds. Intermediate 3 min read
- What is a DDoS attack? A DDoS attack floods a website or online service from many devices at once until real users cannot get through. How it works and how to prepare. Beginner 3 min read
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