How can I keep my data on my computer from being accessible online?

Episode 1265 (1:16:54)

Bob from Calabassas, CA

Bob wants to write a document that has personal information on it and he wants to keep it offline and inaccessible to the internet. Is there any way to keep it stored to the hard drive and not be available? Leo says security is hard and thinking you can try and keep your information 100% safe is a fool's errand. Leo can think of several options to foil any defense, even not having it at all. The reality is, he'll most likely be protected through obscurity. He would also be much better off using a security tool like encryption. Bob can use a password manager like LastPass. It also has a mechanism which provides all of his passwords on the event of his death to an emergency contact.