Related Clues:

• Log-in component
• Personal assistant's weapon — that will get you access!
• Secret key to admission
• Special signal, something my old man may use in battle?
• Old man's weapon that's needed to deal with challenge
• Possible security requirement, weapon owned by parent?
• Father's blade which can open doors
• Login name
• Sign-on need
• Login need
• Password's counterpart
• Essential login info