If you're seeing a curious warning message pop up whenever you search YouTube, don't worry: you're not alone.
A glitch caused YouTube search results to be accompanied by an alarming red banner, which read "Experiment: There may be confidential content in your search results. Please do not share outside Google," on Thursday afternoon.
Seeing a weird banner in your search results? No worries-fix in the works. Nothing juicy to see here!— YouTube (@YouTube) May 9, 2013
So, for those thinking they had stumbled upon some sort of strange, secret, confidential YouTube treasure: rest assured it's nothing but a glitch. Now get back to watching those cat videos!