CodeSignal has access to a huge database of previously submitted solutions, and our system is very good at recognizing plagiarized code. The system runs our comprehensive checks on every code submission you get for your tests, and returns the probability that a candidate’s solution was copied from code available elsewhere online.

If CodeSignal detects that there may have been plagiarism, this will be reflected in the candidate's results report. 

Plagiarism check code comparison

To see the code that the candidate wrote compared to the code that CodeSignal has identified as being very similar, click on the plagiarism probability link (low, medium, or high) in the candidate's report. You'll be able see the candidate's solution side-by-side with the similar solution. In the example below, you can see that the candidate has simply copy-and-pasted the code they submitted:

What to do if there's potential plagiarism

If you’re interested in a candidate but the system says there’s a chance that they plagiarized a solution, we recommend sending them another coding test. If their results come back with no or low percent chance of plagiarism, you can proceed with them. 

If you would like the CodeSignal team to review a candidate's test results, contact us at [email protected] 

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