DEF CON Safe Mode – James Pavur – Whispers Among the Stars



Space is changing. The number of satellites in orbit will increase from around 2,000 today to more than 15,000 by 2030. This briefing provides a practical look at the considerations an attacker may take when targeting satellite broadband communications networks. Using $300 of widely available home television equipment I show that it is possible to intercept deeply sensitive data transmitted on satellite links by some of the world’s largest organizations.

The talk follows a series of case studies looking at satellite communications affecting three domains: air, land, and sea. From home satellite broadband customers, to wind farms, to oil tankers and aircraft, I show how satellite eavesdroppers can threaten privacy and communications security. Beyond eavesdropping, I also discuss how, under certain conditions, this inexpensive hardware can be used to hijack active sessions over the satellite link.

The talk concludes by presenting new open source tools we have developed to help researchers seeking to improve satellite communications security and individual satellite customers looking to encrypt their traffic.

The talk assumes no background in satellite communications or cryptography but will be most interesting to researchers interested in tackling further unsolved security challenges in outer space.

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