You don't "send" your password to the manager, you enter it locally. Ideally, it never leaves your computer, so it is far less likely to 'leak' The database is

You don't "send" your password to the manager, you enter it locally. Ideally, it never leaves your computer, so it is far less likely to 'leak' The database is encrypted, so if someone were to hack them, they would at least have some (hopefully major) issues decrypting it all.