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  2. Sargent & Greenleaf - Wikipedia

    en.wikipedia.org/wiki/Sargent_&_Greenleaf

    Sargent & Greenleaf, Inc., more commonly known among Safe and Vault technician circles as S&G, is a U.S. company that manufactures combination locks, key-operated safe and safe deposit box locks, high security military padlocks, and associated equipment.

  3. Trapped-key interlocking - Wikipedia

    en.wikipedia.org/wiki/Trapped-key_interlocking

    A safe sequence of operations is enabled through transfer of keys that are either trapped or released in a predetermined order. For example, a key is used to isolate a power source (circuit breaker or supply valve), this key is then released and can then be used to gain access through a gate or door to a high risk area by inserting it into an ...

  4. VingCard Elsafe - Wikipedia

    en.wikipedia.org/wiki/VingCard_Elsafe

    VingCard Elsafe, whose origin was in Moss, Norway, is an international producer of hotel locking systems, electronic in-room safes and energy management systems.After inventing the first mechanical hole card operated lock in 1976, VingCard was acquired in 1994 by ASSA ABLOY, and merged with the electronic safe producer Elsafe [2] to form VingCard Elsafe in 2006.

  5. Safe-cracking - Wikipedia

    en.wikipedia.org/wiki/Safe-cracking

    The combinations for some electronic locks can be retrieved by examining electromagnetic emissions coming from the lock. Because of this, many safe locks used to protect critical infrastructure are tested and certified to resist TEMPEST attacks. These include the Kaba Mas X-10 and S&G 2740B, which are FF-L-2740B compliant.

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  7. Secure your AOL account

    help.aol.com/articles/secure-your-aol-account

    Keep your account safe • Use a strong password and change it regularly - Create a strong password to minimize the risk of unauthorized account access. • Add another level of security - Turn on two-step verification and get sent a security code when someone logs in from an unfamiliar device or location.

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