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usonian

(24,102 posts)
Wed Jul 9, 2025, 04:27 PM Jul 2025

Surveillance Self Defense. Special info for protesters.

Reposted from Activist Headquarters.
https://www.democraticunderground.com/10114351


ICE is using electronic surveillance tools. Reposting these safety measures that limit their effectiveness.

Of special note: Attending a protest
https://ssd.eff.org/module/attending-protest

https://ssd.eff.org/

TIPS, TOOLS AND HOW-TOS FOR SAFER ONLINE COMMUNICATIONS

A PROJECT OF THE ELECTRONIC FRONTIER FOUNDATION

COPYRIGHT (CC BY)

We’re the Electronic Frontier Foundation, a member-supported non-profit working to protect online privacy for over thirty years. This is Surveillance Self-Defense: our expert guide to protecting you and your friends from online spying.

Read the BASICS to find out how online surveillance works. Dive into our TOOL GUIDES for instructions to installing our pick of the best, most secure applications. We have more detailed information in our FURTHER LEARNING sections. If you’d like a guided tour, look for our list of common SECURITY SCENARIOS.


Starts with basics. Lots of valuable info.

Of special note: Attending a protest
https://ssd.eff.org/module/attending-protest
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Surveillance Self Defense. Special info for protesters. (Original Post) usonian Jul 2025 OP
Bump irisblue Jul 2025 #1
Not even that.... reACTIONary Jul 2025 #7
Bookmarked, K & R, also remember.. Permanut Jul 2025 #2
Not being sarcastic - just an honest question. What store doesn't have cameras these days? Marie Marie Jul 2025 #8
Point taken, that's a tough one. Permanut Jul 2025 #10
KR&B ms liberty Jul 2025 #3
IR blocking sunglasses can... S/V Loner Jul 2025 #4
There are simple (hopefully) adversarial attacks against facial recognition. usonian Jul 2025 #5
Thanks, usonian! highplainsdem Jul 2025 #6
Excellent -- thanks Hekate Jul 2025 #9

Permanut

(8,131 posts)
2. Bookmarked, K & R, also remember..
Wed Jul 9, 2025, 04:58 PM
Jul 2025

That when you buy a burner phone, get one at a store that does NOT have surveillance cameras.

S/V Loner

(9,503 posts)
4. IR blocking sunglasses can...
Wed Jul 9, 2025, 05:21 PM
Jul 2025

make facial ID’s difficult. I would bet a lot of those sunglasses you see on ICE thugs block IR.

usonian

(24,102 posts)
5. There are simple (hopefully) adversarial attacks against facial recognition.
Wed Jul 9, 2025, 05:30 PM
Jul 2025

CV Dazzle and others are found mostly in academic papers.

Here's a simpler reference.

https://www.theregister.com/2025/01/15/make_up_thwart_facial_recognition/

"You can systematically attack the recognition algorithm without necessarily drawing attention to yourself," he said, adding that it provides a way around the Streisand effect – "the moment you seek anonymity, you attract it."


paper: https://arxiv.org/abs/2412.13507

Novel AI Camera Camouflage: Face Cloaking Without Full Disguise
David Noever, Forrest McKee

This study demonstrates a novel approach to facial camouflage that combines targeted cosmetic perturbations and alpha transparency layer manipulation to evade modern facial recognition systems. Unlike previous methods -- such as CV dazzle, adversarial patches, and theatrical disguises -- this work achieves effective obfuscation through subtle modifications to key-point regions, particularly the brow, nose bridge, and jawline. Empirical testing with Haar cascade classifiers and commercial systems like BetaFaceAPI and Microsoft Bing Visual Search reveals that vertical perturbations near dense facial key points significantly disrupt detection without relying on overt disguises. Additionally, leveraging alpha transparency attacks in PNG images creates a dual-layer effect: faces remain visible to human observers but disappear in machine-readable RGB layers, rendering them unidentifiable during reverse image searches. The results highlight the potential for creating scalable, low-visibility facial obfuscation strategies that balance effectiveness and subtlety, opening pathways for defeating surveillance while maintaining plausible anonymity.
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