Robert Xiao

Popular posts: 2
Total points: 1,548
HN comments: 317
Rank: #1,188 personal

Visit robertxiao.ca → RSS feedOn Hacker News May 2018 – Sep 2019

Security & Privacy 2 Society, Policy & Culture 1 Hardware & Electronics 1

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LocationSmart Leaked Location Data for All Major U.S. Carriers in Real Time

20181,209 points270 commentscited by 4Security & Privacy details

On May 16th, I found a vulnerability in the LocationSmart website which allowed anyone, with no prior authentication or consent, to obtain the realtime location of any cellphone in the US to within…

Reverse engineering a custom CPU from a single program

2019339 points47 comments Security & Privacy details

or: reverse-engineering a custom, unknown CPU from a single programtl;dr: We reverse-engineered a program written for a completely custom, unknown CPU architecture, without any documentation for th…