lbry.com/content/faq/how-to-encrypt-wallet.md

title	category
How do I encrypt my wallet?	wallet

You can use lbrycrd-cli encryptwallet <passphrase> to encrypt your wallet.

You can use lbrycrd-cli walletpassphrase <passphrase> <timeout> to temporarily unlock the wallet. The parameter is in seconds.

For example, lbrycrd-cli walletpassphrase 'open sesame 321' 300 would unlock your wallet for five minutes, assuming your passphrase was open sesame 321. (In reality you should choose a harder-to-guess passphrase than that.)

If you set too low, it might expire before you get done using your wallet. If you set it too high, you might forget that you left your wallet unlocked.