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  2. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    A metal doorframe with a strike plate built in: in other doors this would be a metal strikeplate in a wooden doorframe. The term door security or door security gate may refer to any of a range of measures used to strengthen doors against door breaching, ram-raiding and lock picking, and prevent crimes such as burglary and home invasions. Door ...

  3. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    Door and window sensors are also implemented in most home security systems. One part of the system is installed on the door or window itself while the other part is installed on the frame of the door or window. The two part system connects securely when a door or window is closed, creating a security circuit. [5]

  4. Internal security - Wikipedia

    en.wikipedia.org/wiki/Internal_security

    Threats to the general peace may range from minor civil unrest, large scale violence, or even an armed insurgency.Threats to internal security may be directed at either the state's citizens, or the organs and infrastructure of the state itself, and may range from petty crime, serious organized crime, political or industrial unrest, or even domestic terrorism.

  5. UL (safety organization) - Wikipedia

    en.wikipedia.org/wiki/UL_(safety_organization)

    UL 2050, National Industrial Security Systems (Revised: November 07, 2010) [46] UL 2610, Commercial Premises Security Alarm Units and Systems (ANSI Approved: April 07, 2021) [47] UL 2900-1, Software Cybersecurity for Network-Connectable Products, Part 1: General Requirements (ANSI Approved: April 14, 2023) [48]

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. United States Postal Inspection Service - Wikipedia

    en.wikipedia.org/wiki/United_States_Postal...

    The United States Postal Inspection Service (USPIS), or the Postal Inspectors, is the federal law enforcement arm of the United States Postal Service.It supports and protects the U.S. Postal Service, its employees, infrastructure, and customers by enforcing the laws that defend the United States' mail system from illegal or dangerous use.

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