Whai is SQL Injection ?

 How to hack any website

Whai is SQL Injection ?

SQl injection is a web security vulnerability  that allows  an attacker  to interfere with the queries that an application makes to its database. It generally allows an attacker to view data that are not normally able to retrieve. This might include data belonging to other users, or any other data that the application itself is able to access. In many cases, an attacker can modify or delete this data, causing persistent changes to the application's content or behaviour.In some situations, an attacker can escalate an SQL injection attack to compromise the underlying server or other back-end infrastructure, or perform a denial-of-service attack

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