Recover and decrypt email app password My boss gave me his iPad and tasked me to get his Yahoo password that was in the default mail app. He made the account 15 years ago, and we both have tried all the recovery options (security questions are forgotten, backup email is no longer accessible). Additionally the passwords are not stored in the safari saved passwords

What I do know is the format of the password ( x number of symbols then y number of numbers etc )

I understand that passwords are stored in the keychain and are encrypted. 

Should I:

Jailbreak the iPad and get the db file for the keychain and decrypt it using something like hashcat (while knowing the format of the password)?

Make an encrypted backup via iTunes and get the db that way?

Or is there a better way to recover the password?

Note: I only have Windows available to me
buy a Mac from Apple
set it up, use the same iCloud account/Apple ID as on the iPad
enable iCloud Keychain syncing using the iPad keychain as a starting point
access password via Keychain application
disable iCloud on Mac
return Mac to Apple and get refund


PS: please check the applicable return policy for your country first