Hello people

From a online security perspective, how viable is the total online passivity tactic against hacking, phishing and whatever else there is of threats and tracking online?

In that concept i mean: to stay as a lurker on the social medias, only posting extremely sparse.

If you get random mails from the bank or other instances you dont follow the links, but rather either phones them, or manually goes to the companys page and loggs in to see if there are any messages on the internal inbox or anything that pops up when logging in.

With the thought in mind, that you cant get attacked, if they dont know you are there, how viable is this tactic?