How Does Hackerrank Detect Cheating?
HackerRank uses various methods to detect cheating and plagiarism in coding assessments. Here are the key techniques:
1. Code Similarity Detection
- HackerRank compares submitted code against other submissions using Moss (Measure of Software Similarity).
- If two codes have high similarity, it flags them for review.
- Even small modifications (changing variable names, adding comments) won’t bypass detection.
2. Copy-Paste Detection
- If a candidate copies code from the internet or another document, HackerRank detects it.
- Some tests disable copy-pasting entirely to prevent this.
3. Keystroke Analysis
- Some tests track keystrokes and typing patterns.
- If someone copies and pastes the entire solution instead of typing, it’s flagged.
4. IP Address and Device Tracking
- If multiple candidates log in from the same IP or device, it raises suspicion.
- This helps detect group cheating or one person taking multiple tests.
5. Proctoring Features
(Some companies enable these features for high-security tests.)
- Webcam Monitoring 📷: Captures periodic images to check for multiple people.
- Tab Switching Detection 🔍: Flags users who navigate away from the test.
- Screen Recording 🖥️: Some tests record screen activity to detect web searches.
6. Plagiarism Reports
- After the test, HackerRank automatically generates a plagiarism report.
- Recruiters can review flagged submissions and decide on further action.
How to Avoid Getting Flagged?
- Write original code, even if you’re using common solutions.
- Avoid copy-pasting from Google or previous submissions.
- Test your logic locally before submitting (instead of switching tabs).
- Don’t share or discuss questions online.
Final Thoughts
HackerRank takes cheating seriously, and companies rely on these tests for hiring decisions. The best way to succeed is to practice honestly and improve your problem-solving skills! 🚀