Years ago I went to our annual PhD retreat and one of PhD students from a different lab presented data from a screen they did. They talked about the model and the screen and just when we thought things were getting excited and they would talk about their findings, they showed data about "protein X". They described some of the features of said protein, but did not want to disclose the name, in fair of getting scooped.
I thought this was overly cautious and unfair to the audience, but the other day I heard an even more striking story of someone who was this vague about their data in a labmeeting of their own lab. For months they presented data without wanting to tell to their lab members the identity of a protein that was at the center of their project. It makes me wonder: is the lack of input you can expect from your lab mates when you hide critical information worth the reduced risk of getting scooped by someone close to you?