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BrowserGate: Technical breakdown of LinkedIn’s covert browser extension fingerprinting
(the.unknown-universe.co.uk)
Icon base by Lorc under CC BY 3.0 with modifications to add a gradient
Not sure how widespread this was but early on Linkedin used to spam your contacts with a message saying you were trying to add them on Linkedin.
I remember receiving tons of them and having to set Linkedin as spam.
Linkedin, for me, at least has always been sketchy. Like the Zynga of Social Media. Scam your way till you get lucky.
Facebook often sends spam saying your friend xyz just mentioned you in their post. Which is always a lie.