What is SQL Injection and How Does it Work

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SQL Injection is a web hacking technique of inserting SQL commands in user-supplied data fields of web applications and submitting them for execution by the database server.

To perform a SQL injection attack, an attacker inserts malicious SQL code, most often a database query, into a string that’s eventually executed by the database through a web application (e.g. a login form).

SQL injection can generally be used to perform the following types of attacks:

• Authentication Bypass
• Insert, modify, or delete …

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