This isn't really a typical Venture funding, and is definitely not a "Series A". Traditionally, at this point, 1Password would probably have just gone Public, without any need for venture funding. But, why go to the hassle of doing that when you can get most of the same benefits ($$$) without any of the pain (public reporting, SOX, etc...). The VCs at this point would be happy with a 3-4x return, because the risk is…
They sponsored Gophercon in 2018(?). I didn't even know they use Go.
Good luck to them and hopefully they will keep us from password disasters of the future. Now, if only I could convince everyone to use a password manager...