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  2. Tubular pin tumbler lock - Wikipedia

    en.wikipedia.org/wiki/Tubular_pin_tumbler_lock

    A tubular lock and key. A tubular pin tumbler lock, also known as a circle pin tumbler lock, radial lock, or the trademark Ace lock popularized by manufacturer Chicago Lock Company since 1933, is a variety of pin tumbler lock in which a number of pins are arranged in a circular pattern, and the corresponding key is tubular or cylindrical in shape.

  3. Smart key - Wikipedia

    en.wikipedia.org/wiki/Smart_key

    Operation. The smart key allows the driver to keep the key fob pocketed when unlocking, locking and starting the vehicle. The key is identified via one of several antennas in the car's bodywork and an ISM band radio pulse generator in the key housing. Depending on the system, the vehicle is automatically unlocked when a button or sensor on the ...

  4. Skeleton key - Wikipedia

    en.wikipedia.org/wiki/Skeleton_key

    The normal key on the left will open only the lock that it goes to, but the skeleton key on the right will open any lock with this particular keyhole. Two warded lock keys and a homemade skeleton key A skeleton key (also known as a passkey [ 1 ] ) is a type of master key in which the serrated edge has been removed in such a way that it can open ...

  5. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    A remote control for a keyless entry system built into an ignition key: pressing a button on the key unlocks the car doors, while another button locks the car and activates its alarm system. A remote keyless system ( RKS ), also known as remote keyless entry (RKE) or remote central locking, is an electronic lock that controls access to a ...

  6. 2-Step Verification with a Security Key - AOL Help

    help.aol.com/articles/2-step-verification-with-a...

    When you get your Security Key back or get a new key, you can re-enable 2-Step Verification in your. Still need help? Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care. A security key is a physical device that gets uniquely associated with your AOL account after you enable it.

  7. Lock bumping - Wikipedia

    en.wikipedia.org/wiki/Lock_bumping

    To bump a lock, a person inserts a bump key into the key way one notch (pin) short of full insertion, then bumps the key inward to push it deeper into the key way. The specially designed teeth of the bump key transmit a slight impact to all of the key pins in the lock. The key pins transmit this force to the driver pins; the key pins stay in ...

  8. Security token - Wikipedia

    en.wikipedia.org/wiki/Security_token

    A GoldKey security token connected to a laptop. A security token is a peripheral device used to gain access to an electronically restricted resource. The token is used in addition to, or in place of, a password. [ 1] Examples of security tokens include wireless key cards used to open locked doors, a banking token used as a digital authenticator ...

  9. Keychain - Wikipedia

    en.wikipedia.org/wiki/Keychain

    Keychain. A keychain ( / ˈkitʃeɪn / ⓘ) (also key fob or keyring) is a small ring or chain of metal to which several keys can be attached. The length of a keychain allows an item to be used more easily than if connected directly to a keyring. Some keychains allow one or both ends to rotate, keeping the keychain from becoming twisted, while ...