Evolv's Secret Metallic Sensitivity Setting And The Risk Of Missing Weapons

By Nikita Ermolaev, Published May 02, 2022, 10:31am EDT (Info+)

Evolv has a key setting called "Scan Sensitivity - Metallic" that greatly impacts the probability of Evolv missing weapons and falsely alerting on benign objects.

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Evolv aims to hide this from the public, objecting to IPVM's investigation into this as "irresponsible and makes the public less safe." However, this is a key factor in how safe or unsafe the public truly is, contrary to Evolv's marketing.

Inside this note, we examine this setting, how Evolv recommends it be used, and the important tradeoffs involved in adjusting the detector.

Evolv ******* ******** *********

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

*** **-**** ******** ****** ******** * detailed ******** ** *** ******, ********* Setup, ****** **********, ***** ********, ***** Tagging, ***.

*** **-**** ******** ****** ******** ** overview ** ********* ******* *** ********* Evolv ******* ***********, ********* ***** **** & ******** ********, ******** ******* ********, Sensitivity ******* ****-** ********, ***.

6 *********** ******** - * ** *

*** ******** ****** ***** * ********* sensitivity ******** (* ** *) "**** the ***** ********* (***** *) ** the **** ********* (***** *)."

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Manuals ********* "********"

************ ******** **** ***** ******* ** not * ***** ********, *** **** "********" ** *** Sensitivity ******* ***** **** ***** ******* is ******* *** *****.

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*******, ***** **** ******** ****** **** Evolv ******* ***** *** "**********" ** weapons, ********* ****** *** ****** * weapons ********. *** *******, ** ***** **** *** ******** *********, *****'* *** ***** ****** ****:

We **** *** ********** *** *** *** ******* ** *** ***** *** **'** ****** **** **** ***** ****** ****'* ******** ** ******** ** ****** **** *** ***. So we'll always find it in those cases. [emphasis added]

** ** ********* **** ** **********,****** **** * ******* *****:

And **'** ******* *** ********** *** *** *** ******* **** *** *** *****, *** *** *** **** **** ******....** *** *** ****, *** *** *****, *** *** ***** ******** ******...So we've written the signatures for all those ... We can determine whether we see one of those signatures or not and most people aren't carrying a weapon when they come in. So they can flow in and we you know, we can find a needle in a hastage. [emphasiss addeed]

*******, ******* ******** ****** *** ******** User ****** *** * ****** ******* of ****** "**********."

Sensitivity ******* ** *** **** ********** *********

*** **** ********** ******* **** *** affect *** *********** ** *** ****** is *** *********** *******, ********* ** the ******** ******.

*** **** ** ******* **** ******** and ********** ********* ** *** ********* position ** ****** ** ****** ******* user ********** *** ********: **** ***** alarm ***** *** ******* ****** ** weapons ****** ** **** ******* ****** but *** ***** ***** *****.

**** ********** **** *** ***** ******** Manual, ***** *** * "*********** ******* What-If ********" *******, ** ***** ***** claims **** *** **** ******* *** be ********** ***** ********* *********** ********:

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***** ******** ****** ************ *** ******** in ***** *****, **** * ****** 40% ***** **** ** ******* * (most *********) ****** ****** *% ** A (***** *********), ** *** ******* below ************:

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***** * **** *% ***** ***** rate ** ******* * ** ***** for ********** ******** ******, *** **** is ******* *******.

******, *** ******** ** * **** videos ****** *** ***** ********* ******* used *** ******* *.

Real **** *********** ********

******* "*" ** *** **** ****** with ****** ******* ******, ********-****, *** Charlotte-Mecklenburg ******* ***** **** *******, ** shown *****.

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*******, ****** ****** ********, ***** ****** Evolv *******,**** **** ******* "*", ********* ** * ******** **** school ***** *******.

****** **** ***** *******, ***** ************* ************** ********* **** *** ***** ********* Park ** ***** ***** ******* ** sensitivity ******* "*":

****, *** *** ***** ** ******. I'll **** *** *** **** *** it ** *** **** ********* *******. They're ******* *** ********. *** **** just **** *** **** ****** ** search * *** *********.

******* "*" ** **** ********** ****, as ***** ********** ****** *** ******* Casino ****** **** **** *******, ** shown *****:

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**** ***** ** ********* ***** ******** "A" - "*" **** ****. ** raises *** ******** ** ******* *** low ***** ***** ***** ** ******** "A" - "*" *** ***** *** amount ** ****** ******* *********** ******* into *** ********.

Sensitivity *****-**** *************** *******

******* ***** ******* ** * ****** sensitivity ***** ****, ** ***** ** avoid ***** ******, ******* **** **** to *** *********** ** ****** ******* alarms. ** ******* ** **** * workaround ** ******* ********* ***** ***** heads, ** ** ******* **** ******** Benz ******* *****:

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******* ******** ********** ******** *** *******.******** ** ******* *** ***** ** carry ***** ******* ******* ** ***** backpacks, ********* ** *** ****** ****** meeting.*** ***** ******** ****** **** *** same ************ ***** *****:

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***** *** ******** ************* ** ******* (*,*,*,*).

False ***** ****

*****'* *** ************* ***** * ***** alarm **** ** *** ***** ** 5 - **%, ****** ** *****'* own ******* ***** *****, ** *** be **** ****** ********* ** *** setting **** *** *** ********** ** the **** (*.*., ****** ******** *** carrying ***********).

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*****, *******, ****** **** *** **** from *** ***** ******* ****** ** "fictitious":

***** **** *** ***** ****** ******** operational ****.The ******** ** *** ******** ***** *** **** ********** **** used to illustrate some of the analytics views and data elements representative of the Evolv InsightsTM dashboard. No conclusions should be drawn from these. Alert rates vary per customer. [emphasis added]

**** ******** **** *** **** **** Evolv's ************* ***** **** ****** **** life *************** ** *****. **********, ***** numbers ******* * ********* ** ******** the *********** ** *** ******.

***** ******* ** ******* ***** **** Evolv ******* **** ********** *** ************** of *** ******. ** ******* ******* ***** ** ***** ******* ** the *********-*********** ** *********** ******* "*"***** **** *** ******* ***** ** laptops ***** ****.

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Alert *******: * **** ****** ***** ***** *******

***** ****** **** *********, ******** *****, strollers, *** ******* *** ** *********** for ***** **** ***** *** ******* specifically *** **** ** ***** ********** allowing ********* ** *** ***** ***** alarm *****, ** ***** ***** **** Evolv's ****** *********:

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Evolv ******* ** ****'* *********, ***** *******

**** ********* ***** *** ******* ** the *******, *** *****'* *** **** Loof *********:

****’* ****** ** ******** ***** ********* security *********** **** *** ******* ****** at ******* ****. *** *******’* ***** (and *** ********'*) ** ** **** the ****** **** ** *** ****** they ******. ***** ******* *** ******** to ** ****. ** ** ****** with *** ******** ********* ************, ***** are ******** *********** ******** *** ***** of ********* **** ****** **** **** to ******** *** ********* ******* ** their ******** ***********. ** ** **** understood **** *** ******** ********* ******* guards *********** ******* ** *** ******** performance ** ********** ******* ** ****** detection. ********** * ********* ** *** security ********* ********** ** ************* *** makes *** ****** **** ****. **** is *** ** ** *** ** support ****'* ****** ** ******** *********** on ***** ******* (** ***** ******** detection *******), *** *** **** *** work **** ****.

******* ***** **** *****, *** *** page ***** **** ***** **** ******* was ** ****** ******** ********* *** required * ******** *** ******.

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****, *******, *** **** ********* *** ****.

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Public ****

*** ****** (********* ********) *** ****** on ***** ******* *** "****** *********," which ***** ******** *******, ****** **** how **** (** ***) *** ****** works. **** ******** *********** ******* *********** the ********** **** ***** *** ** actually *********** *******.

Comments (18)

***** ***** ** ****** ********** ***all *** ******* is just absurd.

* **** **** ** * **** drawer **** ***** ** **** ********* as * **** ** ***** *** or ********** *******. ** ** **** a ****** **** ******, *** ** is **** ***********, *** ** ** knowledge * * ** * **** item, ******** ** * ****** ***** stationed ** * **** **** ** Vietnam.

*** **** ** ***** ****** **** this *******, ** **** ********* ***** to ** *** ****** *****. ** can ** ****** **** **** *******, and *** ****** ***** ****** ** hidden ****** ** ********* **** ** umbrella ******, ******* ****, **** ***, or ***** ****.

Agree: 3
Disagree: 1
Informative: 2
Unhelpful: 1
Funny

*** **** ** ***** ****** **** this *******, ** **** ********* ***** to ** *** ****** *****. ** can ** ****** **** **** *******, and *** ****** ***** ****** ** hidden ****** ** ********* **** ** umbrella ******, ******* ****, **** ***, or ***** ****.

** * ****** *** ***** ******** metal ********* *** ***** **** **** this? ***** ***** ******** * **** been ******* **** **** ******** ***** around *** ********. ********* *******, *********, vape ****, *** ****.

Agree
Disagree
Informative
Unhelpful
Funny

** **** ****, * *********** ***** detector ***** ** **** ****** ** find ** ** ** *********** ******. The ********* ***** ****** *** ****** weight **** ** ***** ****** *** off * *********** ***** ********, ** be ***** **** * ****. ** plain **** *** ******, ** ** least *** ******, ** ****** ******* as ** ******. ******* ** ** some **** ** ****** **** ** be **** ******* ** **** ******* or ******** ********* ** *** ***** detector ******** ***** ******** **** ** from ******* *******. ********* ** * cane ** ********, ****** ***.

**** *****, * ***** *** **** unit ******* ******* ********** ** **** sounds **** *** ********* *********** ********.

* **** ****** ***** *****'* ****** of ********* ***** *********, **** ** someone ****** * *** ****** **** stainless ***** ****, ***** ***** ** easily ******* ***** *********. **** **** make * ******** **** **** **** a ***** ****** **** ***** ***** detection ** *****? ** ***** ** interesting ** **** ******* ** ****, adding **** ***** ** * ****** would ******** **** *** ******** ***** detector **** **** ****** ** ****** a ***.

Agree: 2
Disagree
Informative
Unhelpful
Funny

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Agree: 3
Disagree
Informative: 1
Unhelpful
Funny: 4

* **** ** ********* *** ** meme ******* *** ******* ****** ** greater ****.

Agree
Disagree
Informative
Unhelpful
Funny: 6

** ***** *** ******* **** * would ****** **** ** **** **** kind ** * ******** ****** *** your ****.

***** **** ** * *-***** *** wear ** ** ****** ** *** West *** *** :)

Agree
Disagree
Informative
Unhelpful
Funny: 2

***** **** ** * *-***** *** wear ** ** ****** ** *** West *** *** :)

** *** ** **** ***** - I ********* ********* ** * *** more:

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Agree
Disagree
Informative
Unhelpful
Funny: 4

**** ********* ** *********:

****’* ****** ** ******** ***** ********* security *********** **** *** ******* ****** at ******* ****.

* ***** ***** ** ** *** exact ******** ** *** *** *** "exposing * *********" ** ********** * way ****** *** ******. ** ** clear **** "***'* **** **** ****" because *** *** *** ******* ********** their ********* ********.

** ******** *** *** ****** ***** and ********** **** ** *** ************ you *** ***** ******** * ***** not ****** ** **** ****. ***** is * ****** ****** **** **** serious ************/******. ** *****'* ** *** good ** ***** ********** ****.

Agree: 6
Disagree
Informative: 1
Unhelpful
Funny: 1

**** ***** * ****** **** ******** than ********* ** **

"***** ****** **** *********, ******** *****, strollers, *** *******are ** *********** for Evolv that Evolv has buttons specifically for each..."

***** ****** ** ****** ***** ***** alarms *** ** ** * *** for ***** ** *****/******** **** *** for ***** ** ***** **** ****. I ** *** **** ***** ** failures. **** **** **** ******* ** indicate **** ****** ******* **** **********, but **** ***'* ****** ** ***********. Even *** **** ** *** ******* is ******** *******, "****** *******". ** isn't * ******, ** *** **** clearly ******** ** ***** **** *** sales ***** *'** ********** ****. ***** there ** * ***********(*) *** ***** hiding **. *** **** *** *** been ** **********. *** *** ***** I've *** **** **** **** **** about **, *** ** *** ****** with ********* ******** ** **** *** various *********** ******. *'* ****** **** all ** ***** ***** ** ******* have **** ***** ** *********** *** setting ******* **** *** ** ********. Why ******'* **** *** ** *** different?

***** ***** ** ******* ********** **** to *** *********** ** **** "*********" manufacturers. * **** *********/******* ************ ** just *** ***** ******* *** ******* statements ***** ** ****** ****** ** this **** ** *******. ****** *** goal *** ** **** * "*** piece". * ** *** ***** **** is *** ********* *** **** **** doesn't **** **** **** ****. ** Evolv ** *** *** *******/*********, *** new *** *** *** **** ** beat **? (****'* **** ********)

******, * **** *** ***** *******, I ***** ***** ****** *** **. Their *** ***** **** ** **** a ****** ******* **** ***** ** screening **** **** *** *** ***** that ******* ***** ******** **********. * personally *** *** ******* ** ****** the "******" *********** ******* ** * feature *** *** * ********.

Agree
Disagree
Informative
Unhelpful
Funny

***** ****** ** ****** ***** ***** alarms *** ** ** * *** for ***** ** *****/******** **** *** for ***** ** ***** **** ****.

* ***** **** ** *** ***** is ******* ***** ** ** ******** metal ******** ** * "****** ******** that *** *** ********** *** *** the ****, *** *** ******** ******, all *** *****".

***** ******* ** ************ ***** * really ******** ***** ******** ** ****** false ****** ***** **** * ********** thing.

***** ******* ** ************ ***** *** worlds **** ******** ******* ******** **** signatures *** *** ******* ***** **** a ******* **** ** **** ********.

Agree: 3
Disagree
Informative
Unhelpful
Funny: 1

******, * **** *** ***** *******, I ***** ***** ****** *** **. Their *** ***** **** ** **** a ****** ******* **** ***** ** screening **** **** *** *** ***** that ******* ***** ******** **********. * personally *** *** ******* ** ****** the "******" *********** ******* ** * feature *** *** * ********.

*** ** ******* **** ********** *** Evolv ** *** ** *** *** public ** ****.

** *** *** ******, ** ** a ******, ***** ************ ***** **** from *** ******. **** ***** ***** vets *** ******** ** **** ****** to **** ***********. **** ******* *** are *** ** ** *** ****** does *** **** **** ***** *** not ******* ** **** *** ****** from ***** ***** ** ****.

*** *** *********** *** "*** ** commonplace", ** ********** **** ******* **** you **** ***** ****** ********* *** investor ********* **** ** *** *********, to *** ******** **** **** ******** statements ***** ***** ******* ** ** weapons *********.

* ******* *** **** ***** ** truthful ** *** ******** **** *** but ***** *** ***** **** ** intends ** ************** ****** *** ****** from ******* ***** ******** ***** ***** the ***** ** ***** ******* ** perform **** ** ****** ** *******. This ** *** **** ********* ** have ** ****

Agree
Disagree
Informative: 1
Unhelpful
Funny

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

*** ** *********** ***** ********* "****" their ******* *** ******** ** ***. I ** **** *** ***** ********* we **** ********** **** **** **** is * ***** *** **** ********** point **** *****. *'* **** ********** in **** *** ****** ***** *** more ** **** *** ********* ** the ********* ***** **** ****** ********* about *** ******** ** ***** ****.

***** **** **** ******** ** *********** have * **** ** ****** *** the "******" ******** * ****** *** on **'* ****** ********, ** **, or ***, *** **** *** ***** as ****? ** *** ****** ************* have ******** ******* ********* *** *** behind ******?

*** ***** ***** **** ******** ** about *** ******* *** *** *** of *** ***** ***** **** *********** presented ** **** ** **** ******* Evolvs ****** ********* ** *** ********. This ***** **** ******* **** *** facts *** **** ********** *** *******. Again ***** *** ********** ** *********** metal ********* ***'* ***** ***** ***** rate ****? *** ***'* *** **** for **** ***** ** ******* ******** tied ** *** ********* *** ******* on *** ****** ** ********** ***?

** ******* ******** ** **** ** is ***** **** ***** ****** ***** manuals *******. * ***** **** *** handling **** **** ****** *******. *** they *** ******* ****** * **** defensive ******* ******* ** **** **** perceive ** *******. * **** *** reviewed ***** ****** ********* ******** ** investor ********** *** * ********** ***** being ****** ***. * ** *********** that **** ** ********** **** ** comes ** ****** ********* ****** ********** decisions ***** ***** ****** **** ** concern ** ******* *** ********** ********* by ***** ** **** ** **** the ******* ********* ** ***** ********* is. **** ** * ******* ******** of *** ******* ******* ******.

Agree: 1
Disagree
Informative
Unhelpful
Funny

*** ***** ***** **** ******** ** about *** ******* *** *** *** of *** ***** ***** **** *********** presented ** **** ** **** ******* Evolvs ****** ********* ** *** ********. This ***** **** ******* **** *** facts *** **** ********** *** *******.

******. ***** *********:

The ******** ** *** ******** ***** *** **** ********** ****

** **** ***** * **** ******* statistic, ******** ** *% ***** **** in ***** *** ******** ************:

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** **** ***** ***** ** **** "alert ****" ****** **** ******** ** an ******** ************ ** **********.

***** ***** *** ***** ***** *** its *********, **** ********* ****** **** as * ******* ** ***** ***** service. ** *% ** *** **** and *********** *** ** ***** ******, they *** *** **, *******, **** deflect.

***** ***** *** ********** ** *********** metal *********

** ******** ** ******* *** ***** like ***** ******* ****** ** * next-generation ******* ********* ******, *** * traditional ***** ********.

****, ** **** *** ******* ** the ******, **** ** ***** ***** rate *********** ****** ****** **** ******* after ******* ********** ****** ******* **** have *******?

* ** *********** **** **** ** experience **** ** ***** ** ****** companies ****** ********** ********* ***** ***** single **** ** ******* ** ******* and ********** ********* ** ***** ** part ** **** *** ******* ********* of ***** ********* **.

*****, * ******* *** *** * believe **** ** *** ****** ******** that ***** **** (**** *** ***** to ********, **** *** ***** **** the ******). *** ****** ** **** situation ***** *** ****** *** ********* are ********** ** ********** **** **** thing ****** **** *** *** ********* that ** *** * *** **** issues **** *** ****** ********* *** investor ******* ********.

*** **** *** ******* ****** * more ********* ******* ******* ** **** they ******** ** *******.

**** ******* *** **** **** *** from *** ********* **** ****** ** wrote ******** ********, *** ******** ****:***** ******* ** **** ********* ** Its ****** ********* **********.

Agree
Disagree
Informative: 1
Unhelpful
Funny

#*, * ****** ** ********* **** Evolv's ***'* ******** **** ***** ** a ***** ******* ** *****'* ********* and ********* *******:

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**** ****, ***** **** * *** deal **** *% *** "**********" *** that ** ********** ****** ** *****. Now, ***** ********* * **** ***** that ** ** ***** ** ****** Evolv ******* "***** **%" ***** * result ** ***** ******** ********* **********.

*'** ***** ***** *** ******* ** their ******** ****, **** **** *** responded *** * ***** *** ****** is ******. **** **** **** *% is **** **** *** ****** ***** of *** ***** ******* ******* ** production *** **** *** ********** ** admit *** ***** ** *** ******.

Agree
Disagree
Informative
Unhelpful
Funny

* ***'* **** **** **** ****** they *** ** ****** **** ** for ********** ** ********* ******. ****** I ***** **** *** **** **** they **** ******** ***** **** ****** does **** *** ****** *** **** are ***** ****.

** ******* ***** ** **** **** are **** ******* '**** ** ***' (fan-friendly) ******** ********* *** * ***'* think **** ****** **** ** *** primary ******* ***** *** ******** ********-*******.

*******, * ******************* ****** ** *** ******* ********* that ** **** ** **** ******** components - *** ***** ***** **** to ** ******** ****** ** ***** producing *** **** ***** ********.

Agree
Disagree
Informative
Unhelpful
Funny

**** ** * ***** ** *** end-user ****** * ** **% ********* screening:

**** **** ***** ******** ****:

Agree
Disagree
Informative
Unhelpful
Funny

*** ***** ********* ************ ********* **** ****** **% ** students ******* ********* *** ******:

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***** **** *** ********* ** *** 20% ** *** **** ****** ******* laptops ** ***** ********** ******* ****.

Agree
Disagree
Informative
Unhelpful
Funny

***** *** *** ******* ** *** follow ** ********* ** ** *** 8% ***** **** ********* ** ********** **** ******** *************** **********. ** **** ***** **** Evolv *******'* ******* ***** **** **.

*********,**** ****, ****** ***** ** ************ ********-**** ******* *** ** ***** rate "***** **%".

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Agree
Disagree
Informative
Unhelpful
Funny
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