47 Photos and videos
Pinned Tweet
21 Jul 2025
New research alert 🚨 from my group, “Blockchain Address Poisoning” (Tsuchiya et al.), to appear at @USENIXSecurity 2025 (arxiv.org/abs/2501.16681)! As a follow-up, we also developed a real-time detection system: cryptotrade.cylab.cmu.edu/po… and @toxin_tagger (1/7)
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Nicolas Christin retweeted
May 9
So I made it to the Pittsburgh local news 😀
3 years after a life-altering heart transplant, she's getting her Ph.D. from Carnegie Mellon post-gazette.com/news/educat…
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Apr 16
The system is back up and, guess what, successful attacks continue apace…
Our detection system is down due to our Ethereum/BSC nodes experiencing many issues. We have been syncing the nodes from scratch. Thank you for your patience.
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Apr 14
My student Jenny Tang just presented our work at #chi26. We have been interested in post-mortem management of online accounts (1/5)
andrew.cmu.edu/user/nicolasc…
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Apr 14
A lot of us have completely moved all asset management online. I haven't been to my bank since 2005. Yet, a lot of estate planning does not account for, or even reflect that new reality. (4/5)
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Apr 14
Anyway, I digress. Read Jenny's paper. It's illuminating. Older people are far from being digitally illiterate, and we are not serving their needs well at the moment. And we have to fix this, sooner rather than later. (5/5)
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Mar 24
Following up on my earlier post, we're starting something quite exciting at CMU @CyLab
cylab.cmu.edu/news/2026/03/2…
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Mar 23
My colleagues at @CarnegieMellon @CyLab and I wrote a position paper/manifesto about our view of the future for cyber autonomy (in short: how AI is impacting computer security).
doi.org/10.1184/R1/31769038
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Mar 12
Looks like our address poisoning work is quite prominently featured in this @etherscan blog post. Nice write up btw.
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Mar 11
I very rarely come 'round these parts anymore, but, I just wanted to congratulate freshly-minted Dr. @quarbby on an amazing dissertation/defense and on a wonderfully inspiring life story. Fantastic work, Lynnette!
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Nicolas Christin retweeted
🚨ALERT🚨 #ETHEREUM, 2026-01-04 21:50 (UTC)
$18,500.00 was sent to the lookalike address (0x4cb1...)
Details on cryptotrade.cylab.cmu.edu/po…
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Nicolas Christin retweeted
Jan 21
Lujo Bauer has been named a 2025 ACM Fellow for contributions to access control, usable security and privacy, and the security of machine learning. Congratulations! @TheOfficialACM
ece.cmu.edu/news-and-events/…
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21 Dec 2025
When it pours it rains
20 Dec 2025
🚨ALERT🚨 #ETHEREUM, 2025-12-20 00:13 (UTC)
$102,671.00 was sent to the lookalike address (0x9344...)
Details on cryptotrade.cylab.cmu.edu/po…
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19 Dec 2025
Somebody is going to have a very merry Christmas. Somebody else is going to have a very bad Christmas (HT: @toxin_tagger).
50M bucks. Geez.
19 Dec 2025
🚨ALERT🚨 #ETHEREUM, 2025-12-19 15:32 (UTC)
$49,999,950.00 was sent to the lookalike address (0xbaff...)
Details on cryptotrade.cylab.cmu.edu/po…
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Nicolas Christin retweeted
3 Dec 2025
1.1 million USDT phished on Ethereum yesterday!
The attackers look for small transfers from whales and use GPU farms to brute force look-a-like addresses to fool the whale into sending funds to the attacker.
Please be careful and always double-check addresses!
2 Dec 2025
🚨ALERT🚨 ETHEREUM, 2025-12-02 16:26:23 (UTC)
The attacker's lookalike address 0xec6d9...9b2e1d74 appeared to receive $1,099,516.02.
Details on cryptotrade.cylab.cmu.edu/po…
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3 Dec 2025
Wee!
2 Dec 2025
🚨ALERT🚨 ETHEREUM, 2025-12-02 16:26:23 (UTC)
The attacker's lookalike address 0xec6d9...9b2e1d74 appeared to receive $1,099,516.02.
Details on cryptotrade.cylab.cmu.edu/po…
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19 Nov 2025
Missed AFT'25? All the talks are available online, for free: youtube.com/playlist?list=PL…
(And the papers are linked from our website: advfintech.org/aft25/program…)
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15 Nov 2025
This is very very very bad.
14 Nov 2025
The EU Council appears ready to approve Chat Control.
They're trying to pass an even more far-reaching Chat Control law through the back door, in a form even more intrusive than the originally rejected plan, without needing any EU countries' votes.
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12 Nov 2025
If you've got time to read only one thing today (which would be sad but...), read this op-ed piece by my @S3DatCMU collagues Mary Shaw and Michael Hilton. It's very insightful.
12 Nov 2025
"The speed and efficiency of using A.I. to write code is balanced by the reality that it often gets things wrong." A @nytimes op-ed from SCS faculty Mary Shaw and Michael Hilton describes why a CS education matters in a generative AI world.
nytimes.com/2025/11/12/opini…
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