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Ravishankar Borgaonkar

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Exposing device features on 4G & 5G networkshardwear.io Netherlands 20192019-09-26
Uses cheap SDRs and srsLTE to build a man‑in‑the‑middle 4G/5G setup that passively collects and actively modifies device capabilities; creates an “Nmap”…
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New Vulnerabilities in 5G NetworksBlack Hat USA 20192019-08-03
Demonstrates that device radio capabilities are sent before security, enabling a passive/active MNmap device fingerprinting that classifies baseband maker…
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LTE & IMSI Catcher MythsBlack Hat Europe 20152015-11-10
Build an LTE IMSI-catcher from a laptop + USRP and modified OpenLTE code for about €1,250 and show it works against popular phones. Two classes of flaws…
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Understanding IMSI PrivacyBlack Hat USA 20142014-08-02
An Android research app turns a rooted Galaxy S3/S2 into a passive GSM/3G monitor that logs system information type 3 messages every minute, shows A5/A51/A53…
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