Fabricated references.
WHAT HAPPENS
Ask for sources and you receive citations that look entirely real and do not exist.
Sometimes real sources are cited for claims they do not make.
WHY
It generates text resembling citations. It is not searching anything.
HOW TO SPOT IT
You cannot, by looking. That is the problem.
The only method is checking each one.
WHAT TO DO
Search for the reference independently If it exists, read it Confirm it says what was claimed
Both failures occur.
WHAT DOES NOT WORK
Asking whether the citation is real Checking only the ones that look unusual
WHAT IS SAFER
Find sources yourself. Supply them. Ask questions about them.
That grounds the answer in real material.
THE RULE
If you have not read it, do not cite it.