How Attackers Steal Data from Websites (And How to Stop Them)

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Web attackers use various methods to steal data including phishing emails, SQL injection, cross-site scripting (XSS), brute force password attacks, malware, man-in-the-middle attacks, outdated software exploitation, and insecure API integrations. Defense strategies include user education, multi-factor authentication, input validation, HTTPS implementation, regular software updates, secure coding practices, and proper API security. The stolen data often ends up on the dark web where it's sold for identity theft and further attacks.

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#sql

#web-security

Jun 11, 2025•30m read time•From freecodecamp.org

Table of contents

1. Phishing and Social Engineering 2. SQL Injection, XSS, and CSRF 3. Brute Force Password Attacks 4. Malware and Malicious Scripts 5. Man-in-the-Middle Attacks and Public Connections 6. Outdated Software and Old Plugins 7. APIs, Integrations, and Third-Party Attacks Where the Dark Web Dumps Your Data Defend Your Data