For many LinkedIn is a handy way of keeping up with old colleagues and maybe even finding a new job -- and many think that the bigger their network of contacts, the better.
So if a contact request comes in from a recruiter, even one they had never heard of before, many might think there would be little harm in accepting.
But what if that wasn't a recruiter, but rather a hacker using a fake profile in order to gain access to you, your contact details, and the rest of your network? In connecting you've potentially put yourself and your company at risk of being hacked, breached, or otherwise targeted by cybercriminals.
Certainly people are often more than willing to accept a request from a complete stranger to join their network on LinkedIn.
In fact, according to a survey of 2,000 people by cybersecurity researchers at Intel Security, nearly one quarter (24 percent) say they've connected to someone they don't know on LinkedIn, thus potentially allowing hackers to access to a wealth of information which could be used for spear-phishing, malware drops, and other nefarious means.