if someone gains access to one of my devices and they get the PW is all lost?

Hi there @Henry_Barnett

how difficult is it then to crack the code for 1Password and access my vault?

If you'll forgive me being a little jovial for a moment, then the (extremely) short answer is very.
The slightly longer answer is "even if they [the attackers] put every computer on Earth to work on the cracking and ran them for zillions of times the age of the universe."

That answer came from Jeff Goldberg, our Principal Security Architect, in his recent blog post: Not in a million years. Although he was talking about attackers breaking the combination of both your Secret Key and your account password, a strong account password will be similarly infeasible to crack.

The secret key is not needed in this instance!

Exactly! Your Secret Key protects your data while it's not on your device. When you've signed in to 1Password on your Mac, it's your account password that's on duty to protect your data. Make sure you choose something that's:

• random
• memorable
• easy to enter

In fact, have a look through How to choose a good 1Password account password for some excellent advice about this.

It's good to see customers actively engaging with this so if you do have any questions, do let me know. :)

— Grey