Encryption ensures that data is secure and unreadable to unauthorized individuals without the proper decryption key. It is a critical aspect of maintaining data confidentiality and security, especially in the transmission of sensitive information over potentially insecure networks1.
References := What Is Encryption? Explanation and Types - Cisco

Section: Security Concepts

SQL injection is a type of vulnerability that allows an attacker to execute malicious SQL statements on a database server. This can result in reading, writing, or erasing information from the database, as well as bypassing authentication, executing commands, or compromising the server. SQL injection exploits the lack of input validation or output encoding in web applications that interact with databases. References := Cisco Cybersecurity Operations Fundamentals, Module 1: Security Concepts, Lesson 1.3: Common Network Application Operations and Attacks, Topic 1.3.2: Web Application Attacks