السلام عليكم ورحمة الله وبركاته Is it backbiting if I talk about someone without mentioning who they are and the people I’m telling to doesn’t know who he is?

Ustadh AbdulAziz al-Haqqan
This sounds like a story about a man and you are not specifying who he is, and ofcourse you say it for a benefit. And in these cases this is not gheebah.