This Login Page Looks Fine — Until I Break It in 5 Seconds
Most login pages pass all the usual tests.
Correct password? Works.
Wrong password? Blocked.
Everything looks secure.
Until it isn’t.
In this video, I demonstrate how a perfectly “working” login page can be completely compromised using a classic but still extremely dangerous vulnerability: SQL Injection.
I show how entering a simple line of text, not a password, but actual code, can bypass authentication entirely and grant full access to a user account. No brute force. No hacking tools. Just unchecked user input.
Once inside, an attacker can:
- Access private user data
- Modify or delete sensitive information
- Reset progress and records
- Lock the real user out
- Act under the victim’s identity with no trace
This is not a theory.
This is what happens when applications trust user input.
What You’ll Learn in This Video:
- Why “all tests passing” does NOT mean your app is secure
- How SQL Injection still breaks modern login systems
- What happens after authentication is bypassed
- Why developers and testers miss this vulnerability
- The simple rule that prevents most input-based attacks
Key Security Principle:
- Never trust user input.
- Every character a user types must be validated, sanitized, and treated as potentially hostile.
Just like airport security scans luggage, your application must scan everything before it reaches the database.
Who This Video Is For:
- Software testers and QA engineers
- Developers building login and authentication systems
- Product owners responsible for user data
- Anyone learning application security fundamentals
If you want to learn how to find security holes before attackers do, check out my Software Testing Mastery course. It teaches you how to think like a tester who protects real users from real damage.
ACCESS THE COURSE: https://www.whatisscrum.org/software-testing-mastery-in-scrum/
