Security Test Automation: SAST And DAST
If you want to learn how to test software safely, join an Automation Software Testing Course. This course shows you how to find problems.

Today, keeping software safe is very important. Cyber threats are everywhere. They can harm software, steal data, or cause money loss. This is why companies test software for security. One smart way to do this is by using automated security testing.
If you want to learn how to test software safely, join an Automation Software Testing Course. This course shows you how to find problems. It also teaches you how to fix them. You will learn step by step and become really good at it!
Let us learn more about the two main types of security tests. These are SAST and DAST.
What is SAST?
SAST means Static Application Security Testing. It is like checking your homework before you hand it in. It looks at the code before it runs. SAST finds mistakes in the code. These mistakes can be dangerous. For example, they can let hackers in.
SAST does not need the software to run. It checks the code while you are still writing it. This means you can find problems early. It saves time and money. Some common tools for SAST are SonarQube and Fortify.
What is DAST?
DAST means Dynamic Application Security Testing. It works when the software is already running. It is like testing a car after it is built. DAST tries to break the software while it is running. This shows what problems hackers might find.
DAST looks at how the software acts. It can find issues that happen only when the software is live. Tools like OWASP ZAP and Burp Suite are often used for DAST.
SAST vs DAST
Here is a table to show how SAST and DAST are different.
Tool Type |
When It Runs |
Detects |
Common Tools |
SAST |
Before Code Runs |
Code Flaws |
SonarQube, Fortify |
DAST |
After Code Runs |
Runtime Issues |
OWASP ZAP, Burp Suite |
How Do They Help?
Both tests are important. SAST helps you write safe code. DAST helps you see how your code behaves in real life. Using both gives better safety.
For example, a student from a Selenium Training in Delhi learned how to use both SAST and DAST tools. One day, he found a serious bug before the app went live. This helped his team fix it early and saved them lots of time and effort later.
Simple Example
Let us say you build a login form. SAST can tell you if your code for passwords is weak. DAST can tell you if a hacker can trick your login form. Together, they make your app stronger.
Benefits of SAST and DAST
Feature |
SAST |
DAST |
When it works |
During coding |
After app runs |
Speed |
Fast |
Slower |
Easy to fix bugs |
Yes |
Harder after release |
Helps developers |
Yes |
Yes |
Real-time threats |
No |
Yes |
Why Learn Security Testing?
Security testing is super important in every company. If you are a student, learning SAST and DAST gives you a big advantage. You can join a Software Testing Training in Noida to learn everything step by step. You’ll use real tools, test real apps, and get job-ready.
Today, many companies want testers who can keep apps safe. That’s why learning SAST and DAST in Noida is a smart move for your future.
Conclusion
SAST and DAST are key parts of security testing. SAST checks code before it runs. DAST checks it after. Both are useful. They keep your app safe. If you want to work in testing, learning both will help you a lot.
Start with a course. It will help you understand how to test apps. You will learn SAST. You will learn DAST. You will also learn to use tools that make your work easier.
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