At first glance, this search seems like a harmless tech hack. GitHub is a legitimate platform for developers, and Turnitin is a standard plagiarism detection tool. Why wouldn't a student try to find a shared class ID and key to "self-check" their paper?
If the class found on GitHub is set to "standard repository," your paper will be permanently stored in Turnitin’s database. If you later submit the same paper to your actual class, it will be flagged as 100% plagiarized against your own earlier "test" submission. Security Concerns:
Do not store Enrollment Keys or student PII in plaintext in public repositories.
In one documented case, a single GitHub search for "enrollment key" AND "turnitin" returned over 200 active repositories, many with valid, unexpired credentials.