When people put their information online, they often wonder if it is safe to do so. That is to say, will other people be able to see my personal information. They really mean will my information be secure, but we say things like "safe and secure" and treat them as the same thing. Inmany contexts they are the same thing.
When we say safe, we also often mean, "Will the information still be there when I log back on." Here the word safe is used like the word save: "Will my information be saved until the next time I log in."
It was not immediately obvious to me which of those you were asking about, so I thought I would ask. I still don't know.