Task 1 : Introduction
SQL injection is a prevalent vulnerability and has long been a hot topic in cyber security. To understand this vulnerability, we must first learn what a database is and how websites interact with a database.
A database is a collection of data that can be stored, modified, and retrieved. It stores data from several applications in a structured format, making storage, modification, and retrieval easy and efficient. You interact with several websites daily. The website contains some of the web pages where user input is required. For instance, a website with a login page asks you to enter your credentials, and once you enter them, it checks if the credentials are correct and logs you in if they are. As many users log in to that website, how does that website record all these users’ data and verify it during the authentication process? This is all done with the help of a database. These websites have databases that store the user and other information and retrieve it when needed. So when you enter your credentials to a website’s login page, the website interacts with its database to check if these credentials are correct. Similarly, if you have an input field to search for something, for instance, an input field of a bookshop website allows you…
