Generally, I will not talk much to anybody and I have no interest in knowing issues that are of no value to us. I will never do a general talk with anybody and hence there is no chance for me to know the secrets of others. Once I don't know, there is no question of passing on the same to somebody else.
Some people can't keep silent when they come to know about secret information. They will try to tell to somebody who is close to them and from there it will go to somebody. Finally, it is no more a secret.