Theoretical and maybe stupid questions about security

[Josef G. Bauer]

Hi,

I wonder how easily my private key(s) ('secgring.gpg') can be cracked
once somebody get access to it.

Q: Is the number of 2.8 billions password tries per day from the FAQs
up-to-date?

Q: Is the password stored as an hash and can it be cracked using Rainbow
Tables? Is it maybe salted?


Greetings

Josef