Big thanks to ThreatLocker for sponsoring my trip to Black Hat USA 2026 and also for sponsoring this video. To start your free trial with ThreatLocker please use the following link: https://www.threatlocker.com/davidbombal
Your phone can be tricked into connecting to a fake cell tower. These devices are commonly known as Stingrays, cell-site simulators or IMSI catchers. They can be used to
identify and locate phones in an area, and some attacks can interfere with the security of your cellular connection.
At Black Hat and DEF CON, I spoke to Cooper Quintin, Senior Staff Technologist at the Electronic Frontier Foundation (EFF), about Rayhunter.
Rayhunter is an open-source project from the EFF designed to detect suspicious cellular activity using inexpensive mobile hotspot hardware.
In this interview, Cooper explains how Stingrays and IMSI catchers work, why your phone can connect to a fake cell tower, what an IMSI is, how cellular downgrade attacks work, what a null cipher is, how Rayhunter detects suspicious activity, and what the EFF has learned from real-world deployments.
We also get into mobile forensic extraction, phone searches at the border, biometrics vs PINs and passwords, and the bigger question of how much surveillance power governments and law enforcement should have.
Thanks to ThreatLocker for sponsoring my trip to Black Hat and DEF CON and for sponsoring this video.
#CyberSecurity #Privacy #Hacking
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// MENU //
0:00 – Intro
0:52 – Cooper Quintin introduction
01:18 – Rayhunter tool by EFF
02:45 – Stingrays used by law enforcement
05:05 – How the Rayhunter works
08:44 – Threatlocker sponsor segment
09:59 – Rayhunter results
12:06 – Concerns of Stingrays
14:02 – Why should people care
15:17 – Concerns of mobile forensic extraction tools
17:17 – Password vs biometric
18:04 – Conclusion
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Disclaimer: This video is for educational purposes only.
#cybersecurity #bhusa26 #privacy
