Detailed explanation of SQL Injection It will help to understand the SQL injection and how handle the SQL injection. This is very useful to enhance the data security of web applications which are exposed to customers.

1. Mohammed Fazuluddin

2.  Introduction
 What is SQL Injection?
 How Does SQL Injection Work?
 Types of SQL Injection Attacks
 Real-World Impact of SQL Injection
 How to Prevent SQL Injection
TOPICS

3. Introduction
• In today's data-driven world, websites and
applications rely heavily on databases to store
information.
• SQL Injection (SQLi) is a critical security
vulnerability that can exploit weaknesses in
these systems.
• This presentation will provide an in-depth look
at SQLi, its different forms, how it works, and
how to prevent it.

4. What is SQL Injection?
• SQLi is a code injection attack that targets
applications that use SQL (Structured Query
Language) to communicate with databases.
• Attackers inject malicious SQL code into user inputs,
altering the intended behavior of the SQL statement.
• This can lead to unauthorized access, data theft, or
even complete control of the database.

5. How Does SQL Injection Work?
• Attackers identify vulnerable input fields in
web forms, search bars, or login credentials.
• They craft malicious SQL code disguised as
user input to exploit weaknesses in the
application's code.
• The application processes the user input,
unknowingly executing the attacker's
embedded SQL code.
• This code can then manipulate the database
in unintended ways.

6. Types of SQL Injection Attacks
• Error-based SQLi: Attackers use code to
generate database errors, revealing
information about the database structure.
• Union-based SQLi: Malicious code combines
user input with another SQL query to
retrieve unauthorized data.
• Blind SQLi: Attackers use the application's
response (success/failure) to infer
information about the database content.
• Boolean-based SQLi: Similar to blind SQLi,
attackers exploit the application's true/false
responses to extract data one bit at a time.

7. Real-World Impact of SQL Injection
• SQLi has been responsible for some of the
biggest data breaches in history.
• Attackers can steal sensitive information like
usernames, passwords, credit card numbers,
and personal data.
• This can lead to identity theft, financial loss,
and reputational damage for organizations.

8. How to Prevent SQL Injection
• Input Validation: Sanitize all user input to remove
potentially harmful characters and commands.
• Parameterized Queries: Use prepared statements
with placeholders for user input, preventing
malicious code from being injected.
• Stored Procedures: Pre-defined SQL statements
stored on the database server, reducing the risk of
user-controlled queries.
• Database User Permissions: Grant database users
only the minimum permissions required for their
tasks.

9. THANKS