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Mobile self-defense

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Video duration
01:03:58
Language
English
Abstract
We know that mobile networks can — and do — attack us on many fronts. As this talk will show, even 3G is attackable. It’s high time that we upgrade from complaining to self-defense.

Modern phones include all components necessary to block — or at least make visible — a large range of attacks including IMSI catchers, SIM exploits, and SMS attacks. The possibility of other attacks, such as passive intercept, can be inferred from measurements that normally remain hidden in a phone’s baseband.

This talk details how these secrets were unlocked through reverse-engineering of the most widely deployed baseband family. We release tools that block or alert users to many common attacks.

We also introduce and demonstrate new attack scenarios — hybrids between local and interconnect abuse — including the passive intercept and decryption of 3G traffic.

Talk ID
6122
Event:
31c3
Day
1
Room
Saal 1
Start
6:30 p.m.
Duration
01:00:00
Track
Security & Hacking
Type of
lecture
Speaker
Karsten Nohl
Talk Slug & media link
31c3_-_6122_-_en_-_saal_1_-_201412271830_-_mobile_self-defense_-_karsten_nohl

Talk & Speaker speed statistics

Very rough underestimation:
155.0 wpm
844.8 spm
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Talk & Speaker speed statistics with word clouds

Whole talk:
155.0 wpm
844.8 spm
phonenetworknetworkscallnumbermessagemics73gpeoplesendattackskeyquestionlocationtimedataencryptioncourseworkgsmmobileyearsthreeissuesmessagesinternetconnectedsmstrackingcallsabusesecurityinstancecurrentlyinterceptbitsimcoupleanswergoodcellbunchbasestartcountryyearstationphonesmicrophone