What?
What are gatekeepers? Gatekeepers are people who have the power to shut other people out.
For instance, years ago I was having lunch with a friend of mine and told her that I was looking for a job. A gentleman in the near vincinity overheard me talking and handed me his business card. He told me that he owned a business and to come and see him about a job. Well, when I showed up to see him, the receptionist wouldn't let me see him, even though he had specifically told me to see him.
Recently, a similar incident happened where the office assistant didn't answer my phone calls or emails. However in this instance I knew the business owner because we had a mutual friend in common and I was able to find out the truth of the matter. The office assistant quit because she had been "exposed" however she did severe damage to the business before she left.
There are many gatekeepers around. People who have their own agenda and do whatever they want. They might be a mole working in your company and secretly working for your biggest competitor. The person you trust most may be the person you should never have trusted at all. Some women are in love with their bosses and so probably would want to keep other women away. There are so many reasons... Obviously if you find someone you can really trust and who has your best interests at heart then you know you have a keeper. Otherwise what you've really ended up with is "The Gatekeeper!"