Practical security guide

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Step-by-step fixes, scam checks, Windows cleanup, browser safety, and simple security habits for real problems people run into every day.

Updated guide index
Types of hackers shown as a suspect lineup with intent, consent, and risk labels.

Start here · Jun 7, 2026 · 8 min read

Types of Hackers: Hats, Motives, Risks, and Protection Tips

Types of hackers are best understood by intent, permission, and risk. Learn the differences between white, black, gray, red, blue, green, hacktivist, state-sponsored, insider, and script kiddie attackers.

Also useful · 8 min

How Ransomware Infects Your PC

Ransomware usually starts with a phishing message, stolen remote-access credentials, cracked software, fake updates, malicious documents, or an…

Latest practical guides

01

Guide · Jun 7, 2026 · 7 min read

Phishing Scam Signs to Check

Learn the warning signs of a phishing scam in 2026: account-locked alerts, fake login pages, QR codes, attachments, and what to do if you…

03

Guide · Jun 6, 2026 · 8 min read

How to Prevent DDoS Attacks

Learn how to prevent DDoS attacks with CDN/WAF protection, origin hiding, rate limits, caching, monitoring, response runbooks, and recovery steps.

04

Guide · Jul 21, 2022 · 5 min read

Search Marquis: How to prevent it

What is Search Marquis? Search Marquis is a type of malware that aims to infect the browser, such as Google Chrome, Mozilla Firefox, and…

05

Guide · Jun 11, 2026 · 7 min read

Deadliest Computer Viruses

What was the deadliest computer virus in history? Compare Mydoom, ILOVEYOU, Stuxnet, WannaCry, CryptoLocker, Conficker, Zeus, Code Red, Melissa, and Morris Worm, plus what…

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