Login Watch: Catch the Break-In Attempt
Load a stream of login attempts and write the queries that catch a brute-force attack in progress: too many failures, from one place, in too little time.
What you'll be able to build
Load a stream of login attempts and write the queries that catch a brute-force attack in progress: too many failures, from one place, in too little time. Along the way you pick up real, transferable SQL skills, not just this one project:
- WHERE to isolate failed attempts
- GROUP BY account or IP to tally failures
- COUNT and HAVING to threshold a burst
- ORDER BY and LIMIT to surface the worst offenders
- basic time math for a tight window
- a clean, readable incident report
A course like this one
Yours is built from your own placement, so module count and depth will differ. This map shows what a beginner-level SQL learner building Login Watch actually gets.
- Module 1: Tables, Rows, and Query Intent6 lessons
Builds the table model for your Login Watch.
- Module 2: Joins, Groups, and Data Shape6 lessons
Builds the join shape workflow for your Login Watch.
- Module 3: Filters, Conditions, and Result Sets6 lessons
Builds the filter rule that powers your Login Watch.
- Module 4: Reusable Query Patterns6 lessons
Builds the reusable query helper for your Login Watch.
- Module 5: Transactions and Data Boundaries6 lessons
Builds the transaction boundary for your Login Watch.
- Module 6: Reliable Reporting Queries3 lessons
Builds the report query for your Login Watch.
How the lessons actually work
Every lesson has you predict what a piece of SQL code will output before you run it, then run it for real in your browser and fix what you got wrong. Each module ends in a challenge gate with hidden tests, so you can't advance until your code actually works. The course closes with a capstone that assembles everything into Login Watch, and a runnable proof page tied to your own code.
Common questions
How long does the Login Watch: Catch the Break-In Attempt course take?
about 8.5 hours, across 6 modules and 33 lessons, at roughly 15 minutes per lesson. Your own course may run shorter or longer, since it's sized to your placement result, not a fixed template.
Do I need experience?
No. This is a beginner-tier SQL project, built for someone writing their first real SQL programs.
How much does it cost?
$15 one-time, no subscription. The first module is free, so you can see exactly how the course teaches before you pay for the rest.