[Originally posted on December 22, 2015] 1Password is among the most popular "password vault" apps that allow you to store in one place for easy retrieval all the sensitive bits of information that are always being demanded of you as you browse the web or use apps - usernames and passwords, credit card info, identities (name, address, email address, etc.), drivers' licenses, passports, software serial numbers, membership numbers, etc. 1Password is one of those apps I use all day, every day and it is accessible from all my devices - mobile, desktop (Mac and PC) as well as from any browser - even my AppleWatch.
It is TouchID-enabled on the iPhone and iPad, so my fingerprint easily substitutes for the super-strong master password I use to access my 1Password vault. This master password should be something that is easy to remember but very secure, as it provides "the keys to the kingdom" (your 1Password vault). One suggestion I’ve used is to develop a “nonsense” sentence which creates an indelible visual image in your mind and becomes easy to remember. If you are inclined to write this password down, make sure you store the written version of this password only in a secure physical place, like a locked fire-proof safe.
There's a website out there that will tell you how long it would take the "bad guys" using brute force code-cracking techniques to solve for any password. Most people would be horrified to learn that the typical passwords they use can be cracked in a few minutes or a few hours. The 33-character password I use reportedly will take "centuries" to crack by brute force, given the number of variables at work.
Give yourself some needed peace of mind and get 1Password (I recommend getting both the desktop and mobile versions). This will allow you to stay fully in sync when you add or change passwords and usernames on any of your devices.
I store my vault file in Dropbox so it's easily sync-able from anywhere yet secure because of what I understand to be the hardened security designed into the vault file structure. 1Password will "automagically" enter your username and password for you through handy 1Password extensions available for all platforms.