Introduction to Database Systems | Module 11: Database Security and Authorization by Prakhar Chauhan | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics

Grades

Grade 8 Grade 9 Grade 10 Grade 11 Grade 12

Curriculum

CBSE ICSE IB
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

games
Typing
Memory
Math
English Adventures
Knowledge
Module 11: Database Security and Authorization

This chapter addresses the critical aspects of database security, emphasizing the importance of protecting sensitive data against various types of threats including unauthorized access and data breaches. It covers access control mechanisms such as Discretionary Access Control (DAC), Role-Based Access Control (RBAC), and Mandatory Access Control (MAC), alongside the dangers of SQL injection attacks and the preventive measures needed. Additionally, the roles of data encryption and database auditing in securing and monitoring databases are explored.

Sections

  • 11

    Database Security And Authorization

    This section covers database security and authorization, focusing on the importance of protecting sensitive information and mechanisms for controlling access.

    Learning Practice

  • 11.1

    Introduction To Database Security Issues

    This section introduces the fundamental concepts of database security, emphasizing the importance of protecting data against unauthorized access, modification, and destruction.

    Learning Practice

  • 11.1.1

    What Is Database Security?

    Database security refers to the measures implemented to protect databases from unauthorized access, breaches, and other security threats.

    Learning Practice

  • 11.1.2

    Why Is Database Security Important?

    Database security is paramount to protect sensitive information from unauthorized access and potential breaches.

    Learning Practice

  • 11.1.3

    Common Threats And Vulnerabilities

    This section discusses various common threats and vulnerabilities faced by database systems, emphasizing the importance of database security.

    Learning Practice

  • 11.2

    Access Control

    Access control is the process by which a Database Management System (DBMS) regulates user permissions to access and manipulate database objects.

    Learning Practice

  • 11.2.1

    Discretionary Access Control (Dac)

    Discretionary Access Control (DAC) allows owners of database objects to determine access rights, providing flexibility in managing permissions.

    Learning Practice

  • 11.2.2

    Role-Based Access Control (Rbac)

    RBAC simplifies management of database privileges by associating permissions with roles rather than individual users.

    Learning Practice

  • 11.3

    Mandatory Access Control (Mac)

    Mandatory Access Control (MAC) is an access control model that enforces strict access policies determined by a central authority, utilizing security labels placed on subjects and objects to regulate information flow.

    Learning Practice

  • 11.4

    Sql Injection Attacks And Prevention

    SQL Injection (SQLi) is a significant type of attack that exploits vulnerabilities in applications by inserting malicious SQL code.

    Learning Practice

  • 11.4.1

    What Is A Sql Injection Attack?

    SQL Injection (SQLi) is a critical security vulnerability allowing attackers to inject malicious SQL commands into an application, leading to unauthorized access and data manipulation.

    Learning Practice

  • 11.4.2

    Impact Of Sql Injection

    SQL Injection is a significant security threat to databases, allowing attackers to manipulate or access data unlawfully, leading to serious consequences.

    Learning Practice

  • 11.4.3

    Prevention Of Sql Injection

    This section discusses SQL Injection attacks and outlines key strategies for preventing them.

    Learning Practice

  • 11.5

    Data Encryption

    Data encryption transforms plaintext into ciphertext to protect sensitive information from unauthorized access.

    Learning Practice

  • 11.5.1

    Why Encryption In Databases?

    Encryption is crucial for protecting data within databases, ensuring that even if unauthorized access occurs, the data remains unintelligible without the proper keys.

    Learning Practice

  • 11.5.2

    Types Of Encryption In Database Systems

    This section covers the different types of encryption applicable in database systems, focusing on their purposes and mechanisms.

    Learning Practice

  • 11.5.3

    Key Management

    Key Management is a critical aspect of data encryption that ensures secure creation, storage, rotation, and access control of encryption keys.

    Learning Practice

  • 11.6

    Database Auditing

    Database auditing involves collecting, recording, and reviewing database activities to ensure accountability and security.

    Learning Practice

  • 11.6.1

    Purpose Of Database Auditing

    Database auditing is essential for maintaining accountability, compliance, and security within database systems.

    Learning Practice

  • 11.6.2

    What To Audit (Commonly Audited Events)

    This section outlines key events that should be audited in a database to ensure security and compliance.

    Learning Practice

  • 11.6.3

    Audit Trails/logs

    Audit trails and logs are essential for tracking activities in a database system, providing accountability, compliance, and threat detection.

    Learning Practice

References

Untitled document (26).pdf

Class Notes

Memorization

What we have learnt

  • Database security involves ...
  • Common access control metho...
  • SQL injection attacks explo...

Final Test

Revision Tests