Overview

Injection vulnerabilities are the most common result of mixing user input with system control. An injection vulnerability can have catastrophic results for a system, potentially leading to a full database dump, and laying the groundwork for a remote shell. In layman's terms, this means an attacker controls the entire system and has access to all data.

Passwords are obviously required to keep your online accounts and data safe, but how strong is your password? The idea of a strong password can be hard to quantify and most places require your passwords to meet some requirements. It's common to see "Your password must contain characters from three of the following categories" to be able to set your password. These requirements are in place to raise the entropy of a password and make it much harder for an attacker to guess your password.