Are MAC Adresses something private?

Hi guys.

I'm a bit unsure about this one: Are MAC Adresses something that I should consider private?

I think we can all agree that IP Adresses are not private, because every websites just gets it. But what about MAC Adresses?

I'm currently using MAC Adresses for User Identification. The Program the user uses sends Data to me so I can optimnize for display solution, languages and so on.

I need to identify such reports because i want to update reports, but do not want to duplicate them.

What are alternatives to MAC Adresses? Because there are alternatives, for example i could use the hash of the mainboard or the first network connector to identify.

What do you guys think?

by Jonas_Dralle via /r/csharp

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