Question

g How safe is to have a LinkedIn account where you have published all the important information about yourself

Answer 1

The concept you are looking for is "digital footprint" and it goes far beyond any one social network.

Any information that is public can be used against you. You have to make an assessment about the risk/reward of making data public, and once it is public, you have to treat anyone using that information as public, too. Too often people think that if someone knows something about them, then they can be trusted, an "insider".

Answer 2

LinkedIn is very safe

Step-by-step explanation:

LinkedIn is very safe, that being said you should never post private information about yourself anywhere that you do not want others to see/know. LinkedIn is a job recruiting and networking site, meaning that all the information that you have or will be publishing there should be related to your career. There is no reason for you to publish private information such as document numbers, social security number, address, bank account info, etc.