Time & Attendance Tutorial

Author: Brian Rhodes, Published on Jul 18, 2013

Access Control is useful for more than unlocking doors. One of the best features is also rarely used: Time and Attendance logging. However, selecting the 'same old' door readers for can open several vulnerabilities to abuse. In this note, we look at Time & Attendance Readers for Access Control, describe what features they should have, and what problems arise if they are not properly implemented.

Time Logging is Central

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Time ***** ********

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Multi ****** ***** *****

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Payroll ***********

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*****

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What *** *** *****?

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  • Clock *****: In effect, the EAC system clock serves as the payroll clock. While a variety of solutions for syncronizing/standardizing time exist, such as *** ********** ******* **** ******, *********** ******* *** *** ***** ********** can ****** *********** ********. **** *** ** **** *** **** and **********, ******* ****** **** ** **** **** *** ***** standard **** ** *****.
  • Single ****** ********: Or rather '******* *** **** **** ** *** ******'. ** * ****** ** **********, ** **** *** ****** drops *******, ** **** **** **** *****. *** ******* ** granting ****** ******* ******* ***** *** ***** ** ****** ** issuing ********** ****, ** ****** ******** ****** *** **** *** Attendance ********. *** ***** **** ** **** ** ***** ****** timeclock ** * ******, **** ** ****, *** *** *** time *** ****** ** *******, ******** ********* *** ********* *******.
  • Passback *********: For access systems using 'Anti-Passback' controls, logic discrepancies can cause low-level conflicts with Time Clock readers. If an employee 'scans In' to the timeclock, and then immediately 'scans In' to a normally secured door, the EAC system may generate an alarm or deny access unless the timeclock reader is isolated from passback rules. Given the large number or doors across multiple sites, or large populations of employees in a single system, these sort of errors can be common and hard to troubleshoot.

What *** *** ********?

*******, ** ***** **** ******** ***** ** *** *** ** host '**** *** **********' ********, *********:

  • Less ** ***, ********: While a single system can be a weakness, it can also be efficient. Many facilities prioritize the upkeep of facility access systems, and issuing a credential for access also means it can be used for payroll. The investment in one facility system can be leverage by another.
  • Expanded ******** ********: In normal use, if an employee has a security credential revoked in an EAC system, they immediately become invalid in the payroll system. In addition, tying the two systems together can prevent an unauthorized employee from gaining access to an 'Time In' reader before an allotted shift and help manage overtime payouts, and payroll hour allocations are enforceable by physical access controls. 

Comments (7)

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*****,

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****

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