APIs are essential for connecting different services and applications, but they can also be targets for attackers. When APIs are not properly secured, attackers may try to steal data, disrupt services, or gain unauthorized access to systems. Understanding common API threats helps you protect your applications and keep sensitive information safe.

Common API Threats

APIs are often targeted by attackers who look for ways to exploit vulnerabilities. Understanding the most common threats helps you protect your systems effectively.

Injection Attacks

Injection happens when attackers send malicious data to your API, hoping to trick it into running harmful commands. For example, if your API allows users to enter their username, an attacker might try to enter something like admin' OR '1'='1 to gain unauthorized access. This can lead to data leaks or unwanted changes in your database.

Distributed Denial of Service (DDoS)

A DDoS attack floods your API with a huge number of requests from many sources at once. The goal is to overwhelm your system so that real users cannot access your services. Imagine a ticket website that suddenly receives millions of fake requests, making it impossible for genuine users to buy tickets.

Broken Authentication

Broken authentication occurs when attackers find ways to bypass login or session controls. This might happen if your API uses weak passwords or exposes sensitive information in URLs. For instance, if someone can guess or steal another user's session token, they could access that user's private data without permission.

Understanding these threats is the first step to building secure APIs and protecting your users' data.