Combating the Door Prop Problem

Author: Brian Rhodes, Published on Feb 17, 2013

Doors have a fundamental security function: They keep the bad guys out. When a door is propped open, it no longer provides any security value and undermines huge investments in access control. The issue of propping doors is especially frustrating to building security because it is so common and easy to pull off. In this note, we look at the problem and review the best solutions.

The Problem Defined

******** ***** ** *** * ********* ***** ** ********. ******* it ******* ******* ** **** ******, ******** ********, ** **** rocks ** ****** ****, ********** * **** **** ******* ***** passing ******* ** ****.

*** ******* '************ ****** ********' ******* ** ******* *********** ** a ******* ****. ******** *** ****** * **** ** **** open, ** ****** **** ** ****** *** ***** ******. **** this ***** ***** ** ********* ********, **** *** **** ***** for *********, *** ******** *** **** ** *** ********** ******. Making **** **** ***** *** ****** **** ****** ** ** age-old ******* **** ********* ** **** *********.

*******, **** ******** ** *** ** ***** **** ***** ****. Propping ***** **** ****** *****, *******, ** ******* *** *** cause ******** ********, *** ******** * ********'* ****** ********** ******** is * ***** *****. **** * **** ** **** ** a '***** ** ********' ** ********* ******, ******* ** **** open *** ********** ** ****** *******.

Why ** *******

***** ******** ** ** ******, **** *** *** **** ******?

  • ***********: ****** ***** *** * *******. *** **** **** ** takes ****** ** ***** ****, ******* ** **** ** **** a *** ** ********** **** ** ********** * ******. ********** when ******* ******* ** ******* **** *****, ** ******** * load **** **** ****, ******* *** **** ******* **** ** a ******* *********** ** ********* ******** * **** *******.
  • *******: ***** *** ******* **** *** **** ****** ** *** hot, ****, ** *** *********** ** ***** ******** ** ******* spaces. ******* * **** **** ******** **** ******, *** ** a *** ******* ** **** ********.
  • ******** ***********: *** *** ***** *** ************ ******* ****. ** **** cases, ****** ******** **** **** ****** ** *********** ******* *** keep * **** **** *** ********* ******* *******.

The ********

******* *** ******* **** *** ******* ****** ********* *** *** be **** **:

  • *********** *** *****
  • ****** *******/*********
  • ********** ********* *********

********* *** *****: **** ****** **** ***** ****** *** **** ********* ******. Uninstall ****-*****, ***** **** **** ******, *** **** ***** **** floor **** *** ********* **** **** *****. ****** ****** **** much ******* ** ****** ** ******** * ****, ** ****** it **** ********* ** *** ***** ** ****** ***** ** hold ***** **** *** * *** ******. *** ***** ***** gives * *** ******** ** *** ***** ****** *******:

*******/*********: ****** * ***** ** ********* ******* ***** ****** **** is ***********. ** ******* ***** *** (********) ********* ********* ** the ********* ******** ******* ** ****** *****, *** ******** ******* can ** ************* ********.

*******/********* ********* *********: **** **** ********* ****** ***** ** ** *****, ** **** the ******* ***** ** ** **********, ********* ******* ** ****** control ******* *** ** ********** ** *****. ********** ** *** device ****, *** ********* ** ****-******** ********* **** * *** of ******** *** * *****. **** *** **** *****, *** contact ***** ****, *** * ***** ****** ** *********. ** the **** **** *** **** ****** * ***** ** **** (typically ** ** ** *******), ** ***** ****** ******** ********* to *** **** ****. 

** *** ** ***** ****** **** ** ***** *** ******** of ***** ****** ** *** ********* ** ******** ******, ********* learn ** **** ***** ****.

****'* *** ** ** ****:

  • *** ***********: **** ****** ******* ******* ******* ** '****-****' ******** **** works ** *********** **** **** ******** ******* *** *** **** controller ** **** ** ***** **** ***** *** **** *** long. *******, **** ******* *** **** ** '***** ************' ** audible ***** ** *** ****, *** ******* ***** ** ***** to *** ****** ******* ********** ******* *** *********. ********** *** 'prop *****' ***** ** ****** ** ********* ******* **** ********* to **** *** *******. *********** **** ***** ** * **** already ********* **** ****** ******* ******** ** * **-**** ********.
  • ******** ******: *** ***** ******* ****** *******, ********* ******* ******* *** be *********. ******* **** **** ****-******* ****** ** **** ******* alarm *****. ***** ********* ********* ****** * ***** ** *** door, *** *** ** ******* ** ******* ******* ** ********* units. ****, ********* ************, ***** *******~$*** ** ~$***
  • **** *******: *** ********** ** *** **** ****** ** ********** ** door **** ********. **** ***** * ****** ** ******** *** pulls * **** ************* **** ***** ** ** ******, **** closers *** ********* ********* ** **** ********. *** *********** ***********, like *********** ********* ** **** ** ******* ** *** **** system **** * **** ** ********** *** ********* * ****** to ******** **** *** ****.

Comments (14)

*** ****** ***** * *** **** ******** ** * ***** issue ** **** *** ****** ***** ******** ******** *** ****** to ***** ****** ****** ***********. ***** ******* ***** *** **** a ******* ******* **** ******* ***** ****** ** * ********** area. **** ***** ******** **** ** ********* *** **** *****. However *** ************ ** ***** ** ** **** ** **** and ******** **** ***** ***** ******** ****** ********** ***** *****. Now ******** ** ******** ***** ** ** **** ** **** effectively *** **** **** **** *** **** ** *** ** going ***** *** ****.

*** ***** ***** * ****** ***** ******** ** ** ** allow ****** *********** *** *** ***** ********** *** ****. **** restrict ****** ** **** **** ********/**** ***** *** ****** **** are *** ******** ******** **** ** ***** *****. ** ***** locations *** **** **** **** ****** **** ****** ****** ** keep ***** ****.

**** **** **** ** **** ***** *** **** ** *** around ******* ***** ****** ****** *** *** **** *** **** propping ******* ************* *** **** *** **** * ****** ****** of *** ** ***** ***** *** ****. ** **** ******** forward *** ***** **** **** ********* ***** **** * **** seen ***** ******** ** ****** ******* ***** **** *****. *** argument ** "** **** ** ******** ******* ****** **** **** their **** ********" ** ****** ********* ** ********** "******* **** a ****** *** **** ** ** **** **** ** ** was ** ************* **** ** ******** ** ****** **** *** knowing *** *** **** ** **** **** ** ***"

**** ******** *** *** **** (******) ***** *** ****** *** be ******* ** ** **** ******** *****. **** ***** ******** and ****** ******* ***** **** *** ******* ******* **** * little **** *** *** * **** ****** *** ** ****** "door **** ****" ********** ** **********. **** ****** ****** ****** have ************ ******** / ***** ****** *** ****** * ***** alarm ** ***** ******* *** **** **** *** **** ****** noise ** ***** ****** *** ** ***** *** ***** **** open. ****, * ******* **** **** **** *** ** ** a ******** *** *************...*** *** *** ****** **** ***** ******** such *** ******?

***** ****:

** *** ******** *** *** ****** ******* ****** ** *********** for *** ******** '****** ************' *****.

******!

*** ********, **** ******** ************

**********, **********, ********** **** ********* ****** ** ********

****, ******, ********** ****, ********** ******, ********** **** **********

*** *** ****** ***** * ********* ********** ** ** **** or * ***** *********. **** ***** ***** ** ********* ** action *** ******** ** *** **. *** ****** ********** *** application *** *** ****** ** **.

* ** ******** ** ***** *** ****** **** * **** a ********** ** ****. * ******* **** *** ***** ** be * ******** *** ************* *** *** * ***** *** trunk ******** **** *** ***-*-****. ***** *** ************ ******* *** the ****** *** ***** *************..**** *** ******* ****** ** ***** the ******** ** **** **** **** ****. * *** ** get ** ********* *** ****** **** **** *****..*** ***** **** these **** ******* *** **** *** * ***** *** ** able ** *** **** ** ******** ** *************.

***********,

** *** *** ********** ** ** **** *** *** *** understand **. **** * **** ******* *** ** ***** ** a ****** ** ******** *** **** *******. ****** ******* **** a **** *** ********* *** ******** ***** *** ****. ** matter ***** **** ** ********** ****** *** *** **** ** them ****** ** *** ****** **** *** *********** *** ** enherent ****. ***** *** **** **** ****** ******** ********* *** most ********** ***** *** **** *** **** *** ***** ** faults **** **** ** ***** ******* *****.

******* ***** ** ********** *** ***** ******* ***** *** * later ****.

****, ** ******** ***** ********(** ** *****). ** *****, ***** ~*** **************** **** ***. ** ****, ** ** * ****** **** percentage ** **** ** **. *** '************ *******' **** ****** an *************** **** *** **** ** * ***** ** ******* ** advanced ****** *** ********.

**** ****, ** *** ** *** **** ********** ***** ** the ***** ****+ *** ******** ******** ** ****, ***** ** (john@ipvm.com) *** * **** ******* *** * ******.

****, ** *** ***** * **** **** **** ******** *** a *****, ****, ** ** * ***** *******, ***** *****. I **** **** ****** **** *** ****, ** * **** be ****** *** ***% ********* ** **** ********.

* ** * ** **** ******* ** **** ********. ** you **** *** *** *** ******* **** ******* ***, ****** Pay ** ******** *** ****** ****, **** **** **** **** answers.

****** ****** ******* *******, ******* ****** ** *** *** ** alarm ****** ** *** ******* ***** *** ****** **** ***** condition.

***** * , ** ********* ******* , **** ********. *** the ****** , *** ***** *******. * ** **** ** working ** ******* *******, *** *** ****** ***** ******* *******. You ***** ** ** **** *** *********** ******** ** **** companies

** ****** ** *** **** ** *** ****** *** * dont **** **** ********** ** ********. **** ***

****, ***** *** *** **** **** **** ** ******** ** a **** ***** ** *********, ***********, *****, ********* *** **** a *** ****? ** *** ***** * *** , ** sweat , **** ** *** **** ****. **** * ********* of ***** ** ** ******** & ****** ******* ** *** industry.

********* *** **** ***** ** *** ******* ** ******. ***** I *** ****** **** ***** & ********* ** *** ********. Hard ******* **** **** ******** ************* *** **** **** * clue.

* *** *** *****, ** **** ******* *****, *** **** it ******, ** * *** **** ** ******** & ******** a ****** ********** *** ********* .

****** ******* * *** *** **** , **** ***** , and ***** ******* ***** ******.

* **** *** **** ** ****** ***** ********** ** *** and ******* **** ******* **** ******. *** ******** *** *** if ** ** ** ******** ****** * ********* ***** ** a ******** ****** * ********. * ******** *** ******** * system **** **** ** **** ** * **** ****** ******** in **. ** ****** ********* ****. *** ****** **** *** after **** ******* ** *** ******* *** *** ****** ******* access ** *** ***** *** **********. ***** ****-******* ****** *********** cameras **** ***-*** *****.

***********,

** * ** **** *** *** ****** ***** ********** **** I ** ****** ** ***. *** ********* *** ********** ** extremely ********. ** ******** ***** ** *** **** **** ** wouldn’t ** **** ** **** * ****** *** * ** tired ** ********* ***** ***** ********* ** ** ***** ******* noobs. (**** *** *** ***** ** * ** ** ***) A ****** ********* ** *********. * **** ** *** ********* where ******** ****** **** *** *** ***** *** ******** *** will ** ********, ****, **********, ********, **** ******, ******* ***.***.***. as *** *******.

**** ******** ** ******* *** *** ** ***** ******* *** its ***** **** ***** **** **** ***** *** ******** *** ethical ****** ** **** ********* ** ************ ******, ****** ** harder *** ****** *** **** *** ********** ****** *********** *** the ********* ** **** *** *** **** **** *** *****. Isn’t ** *** ****** **** ** ** ********* ** *** manufacturing ****.(*** **** ** *** * ****** ****). *** *** site **** * ******* *** ***** ** **** *** ******** is ******** ***** *** ********.

* *** * ***** ********** ** ** ***** **** ****** to *** ***** ******* ***** ****...*** **** **** ***** **** they **** **** **** *** ***** *** **** ****** ********* are ***** ** **** **** *** ***** *****.

**** **** *** ******** *** ********* ** ****..*** ***** *** a *** ************* *** *** **** * *** ** ***** looking *** * *** ** **** ******** **** ***** ** us **** *** ** **** *** **.

****, ******* ** **** **** ***** ****** ** **** *********** then **** ******'* **** **** **** **** **** ***** ********* by **** ****. *** ****** *** ** *** **** *** to **** ***** ** ** ******** *** **********.

** ****

* ****** ********** **** *** *** *** *** ********.

**** *** * **** *** ******* ** *** **** ********* and *** **** ***** .

*** ******** *** ***** *** ********** *** ******* ** ***** train *** ******** ****** *** ****** ** *** ***** . No ********** , ** ********* , **** **** ***** , People ****** .

*** **** ***** **** *** **** ** ****** *** *** read ******* *** ***** *** ***** *** **** **** *** bad .

** *** ******** ******** *** *** ******** , ** *** had ** ***** **** ***** , ************** .

***** ** **** ** ******* **** **** **** ************* ******** and ********* ******** ** *** ******* .

* **** **** ***** ******** ******, *** **** **** **** to ****.

*** *** ** ****** *********, ******** ************ *** ****** **** Enforcement

**** **** ** , ****** *** ****

** *** ***** **** * ****** *** ***** ** *** extremly ******** **** ***** ******'* ** ******** ** ***** *** centered ********** ***** **** **** *****, **** ***** **** & tell ************ ***** * ******* ********** *** ** ******* ** this *****.

** ** ** *** *** * ***** ***. **. ** Commercial ********** , ***** *********

*, **** *** **** ****** ** *** **, ***** * company , ********** *** *** ****** **** **** ******** ** achieving *** *****, **** ***** *** ******** **** ******* ******* s *** *** *******. *** **** ********** ** ****** ** of ***** ** **** ******* .

** *** * **** ***** ** *** *** ** . But **** *** **** ** ** .

* **** **** *** ***** , **** ** ***** *** simple **** ** **.

**** ** *** ** *** **** *** ***** ** **** it **** * **** *********** ** *** ******* ** *** industry . *** **** **** ** *** ** **** ****** like **.!

**** *** *** ****

*'* *** *** ****** *** ******** *** *******. * **** encourage ***** ******** ** **** ********** **** *****..*** ***** *** training ** **. ** *** *** ******** ** ****** *** only *** *** * ********** ** *** **** **** ******** but **** *** ********** **** ** ***** ** *** ** done *****. **** ***** ****** ****** ***** ******** ** ***** is ******** * **************** *********** *** ** **** ****** *** SMB **** ****** ***** ** ** ******* **** ***** ***** and **** ** **** ******* ** *** ****.

****,

* **** **** ** *** **** * ** ********* ************ by ***** *** *** ** ******** **** ***'* **** ** understand ***** *********. *** **** ******** ** ******** ** *** the **** ********* ** *** ******* ** ********** ***, *** better *** * ** ** *** **** ***. ** * level ******* *****, *** ******* ************ ** *** *****-*** *** in *** *** **** *** ***. ****** **** ***** **** your ***** ********* ******** *** "******".

*** * *** ***** ***!

*****,

**** *** * ***** *******. **** *** ** * ******** for *** ************, *** ** ******* ****** ** *** ** an ***** ** ***** **** *** **** ** **** ****, for ******* ** *******, *****/***** *** ***** ***** ** * function ** *** ******? **** ** *** ****** '****' ** do *** **** ** ******** ********** ********?

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