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How Hackers Attack Websites: Common Vulnerabilities

Cybersecurity12 min readFebruary 6, 2026

Quick Answer

Understand the most common ways hackers exploit website vulnerabilities, including SQL injection, XSS, and broken authentication.

Introduction: The Hacker's Perspective

To defend your website, you must understand how hackers think. They look for the path of least resistance. In this article, we'll explore common attack vectors used today.

1. SQL Injection (SQLi)

Hackers insert malicious SQL code into input fields to bypass security and access your database.

2. Cross-Site Scripting (XSS)

Malicious scripts are injected into web pages viewed by other users, allowing hackers to steal cookies and session tokens.

3. Broken Authentication

Weak passwords or flawed session management allow hackers to impersonate users or administrators.

4. Distributed Denial of Service (DDoS)

Overwhelming your server with traffic to make your site unavailable to legitimate users.

5. Phishing and Social Engineering

Tricking employees into revealing credentials or installing malware.

Conclusion

Knowledge is your best defense. Regular security testing is essential to stay ahead of attackers.

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