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Finally, I can answer the big question: I am proud to announce that I will be joining
@ubc_cs as an Assistant Professor starting Winter 2019!Thanks. Twitter will use this to make your timeline better. UndoUndo -
Robert Xiao RetweetedThanks. Twitter will use this to make your timeline better. UndoUndo
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I had an amazing two days in Beijing playing
@RealWorldCTF with PPP. A lot of incredibly interesting and fun challenges - looking forward to next year! And, in other great news, I just found out I had a paper accepted to#chi2020, so I’ll be going to Hawaii :)https://twitter.com/hankein95/status/1203774995593216000 …
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When you finish a PhD in computer science, they take you to a special room and explain that you must never use recursion in real life. Its only purpose is to make programming hard for undergrads. https://twitter.com/nneonneo/status/1177641328705851392 …
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Just published my writeup for CPU Adventure at DSCTF, wherein me,
@zwad3,@thebluepichu and@jay_f0xtr0t reverse engineered a program written for a completely unknown, custom CPU with no access to the CPU, emulator or any documentation:https://www.robertxiao.ca/hacking/dsctf-2019-cpu-adventure-unknown-cpu-reversing/ …Thanks. Twitter will use this to make your timeline better. UndoUndo -
Damn, I think I’m getting old. I’m finally at the age where my effectiveness drops off a cliff after 4-5am or so. Guess that means I can’t pull all-nighters any more :(
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Truly, a team effort from everyone here at
@PlaidCTF!https://twitter.com/defcon/status/1160717548406616064 …Thanks. Twitter will use this to make your timeline better. UndoUndo -
Robert Xiao Retweeted
Congrats
@nneonneo on taking down the Pwny Race challenge first. After I get some other work done I'll have to see if I can come back and finish this. I had a good path forward, but didn't finish it before he took down the race.Thanks. Twitter will use this to make your timeline better. UndoUndo -
I’m excited to participate in this community pwnable race - come out and watch us hack binaries live!https://twitter.com/ZetaTwo/status/1143625613300961280 …
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Proud to announce that my thesis, “On-World Computing”, won the SIGCHI Outstanding Dissertation Award. I will be going to Glasgow to present it!
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Officially starting as an Assistant Professor here at
@UBC_CS!pic.twitter.com/xaUKtLpq5F – at ICICS (CICSR) building
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I knew Saskatchewan winters were long and cold, but I never thought they’d start in mid-September!!pic.twitter.com/efCdUCscmV
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Samsung CTF: 4th of ~50 (individual contest), got a little special prize out of it. Flare-On: second finisher. All-in-all not a terrible way to spend a weekend in Korea :)pic.twitter.com/huPGfKtQOp
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My PhD has been certified, so it’s official - I’m now Dr. Robert Xiao!
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That same result if I *don't* do SOCKS tricks: (And yes, I'm aware the canonical solution is "get a rooted Android phone", but seeing as I don't have a functioning one anymore, this iPhone hack will have to do).pic.twitter.com/ofsR58eB1E
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Life hack: I cut off my FIOS because I'm leaving soon, so I'm tethering to my iPhone. To get unlimited tethering speeds, I built a very quick & dirty SOCKS proxy app which forwards all my connections so they appear to come from the phone. Works great!

pic.twitter.com/pLvECcxdt1
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For DEF CON 2018, we built a bit of assembly code that prints out shellcode in 8 different architectures: AMD64, Clemency, PDP-1, LGP-30, and several others. Check out how we did it:https://www.robertxiao.ca/hacking/defcon2018-assembly-polyglot/ …
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This past weekend I was in Vegas playing DEFCON CTF, and just this morning I flew to lovely Vancouver to give a talk at SIGGRAPH 2018. It’s been a busy but fun 72 hours!pic.twitter.com/Ja9qHHILGx
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