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LTrack: Stealthy Tracking of Mobile Phones in LTE

We introduce LTrack, a new tracking attack on LTE that allows an attacker to stealthily extract user devices’ locations and permanent identifiers (IMSI). To remain stealthy, the localization of devices in LTrack is fully passive, relying on our new uplink/downlink sniffer. Our sniffer records both the times of arrival of LTE messages and the contentsContinue reading “LTrack: Stealthy Tracking of Mobile Phones in LTE”

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Why offer an Onion Address rather than just encourage browsing-over-Tor?

The first benefits are authenticity and availability: if you are running Tor Browser and if you click/type in exactly the proper Onion address, you are guaranteed to be connected to what you expect — or not at all. This is very simple for people to grasp, understand, and describe to their friends. Using onion servicesContinue reading “Why offer an Onion Address rather than just encourage browsing-over-Tor?”