Dell Secureworks has identified targeted attacks occurring through LinkedIn.

In this attack, a fake user with a network of connections is created.   Under the guise of a recruiter, they contact targets of opportunity, think sysadmins at a target company.   The victim is enticed to go to a purported resume submission website.  And then you have malware.

• As always, on LinkedIn be aware that people may not be who they claim to be.
• If you are going to apply for a job, go the known, established website of a company, and click on something like “Careers” to find a link to their jobsite.   Where it’s an external recruiter contacting you, take care in establishing their bona fides.
• Dont be part of the problem.  Only accept connections from people you know and trust.   Your connection is an implicit endorsement to other people.