---
title: Shoulder Surfing Detection
slug: admin/shoulder-surfing-detection
description: Learn about the importance of Shoulder Surfing Detection in safeguarding customer data visible on an agent's screen. Explore common settings such as enabling detection of multiple faces and setting a timeout, as well as advanced options like person detect
icon: 👪
createdAt: 2022-08-18T23:54:08.000Z
---

## Overview

Shoulder Surfing Detection identifies if there is more than 1 face in the camera view.  This is used to protect customer data which may be visible on the agent's screen from being seen by someone other than the agent.  Note:  camera doesn't need to be able to see the 2nd person's face -- only a shoulder or other body part is required.

We recommend only changing the "Common" settings without guidance from Tetherfi support.

## Feature Settings - Common

- TRS\_SHOULDERSURFING\_DETECTION\_ENABLED
  - Enable detection of multiple faces/persons
  - Default:  true
- TRS\_SHOULDERSURFING\_VIOLATION\_TIMEOUT	
  - Timespan in seconds for which shoulder surfing is detected beyond which a multiple person event will be raised.  
  - Default:  10

## Feature Settings - Advanced

- PERSON\_DETECTOR\_MODEL\_THRESHOLD
  - Threshold for person detector
  - Default:  0.2
- PERSON\_DETECTOR\_MODEL\_CONFIDENCE
  - Confidence for person detector above which a positive identification is done
  - Default:  0.3
- PERSON\_DETECTOR\_MODEL\_RUNFREQUENCY
  - Run frequency for person detector in milliseconds
  - Default:  500
- PERSON\_DETECTOR\_MODEL\_SWAPRGB
  - 1 = enable feature, 0 = disable feature
- TRS\_USE\_PERSON\_DETECTOR\_FOR\_MULTIFACE - If this is set to true this will use Person detector model.