Does LinkedIn fake invitations?

These phishing emails typically take the form of an invitation, where another LinkedIn user invites the victim to “join their network on LinkedIn.” This is the normal method that LinkedIn allows for networking, so the tactic can easily fly under the radar for the uninitiated.

Why do I keep getting LinkedIn invitations?

Some members receive invitations to join LinkedIn although they are already a member. Often times this happens if you have a second email such as a work or personal email. ... You'll stop receiving guest invitations to join LinkedIn to that email address, but receive any invitations to join as connection requests.