I encrypted my wallet using Bitcoin QT, then closed the application. When I restarted Bitcoin QT, it did not ask for the passphrase. But I could still access the wallet.
How is it possible to access an encrypted wallet without the passphrase?
Does it save the passphrase somewhere?
What is the purpose of encrypting a wallet and not requiring the passphrase?
If you re-install Bitcoin QT do you need to enter the passphrase?
What if you transfer the wallet.dat file to another computer? Would you need the passphrase to access it?
Do you need the passphrase to access a backup of the wallet file?
Do you need the passphrase to access a copy of the wallet file?
I searched and did not find basic information about using Bitcoin QT. Is there documentation somewhere?