PhD Student at Columbia University. Catching Phish and Exploiting Bugs since 2012

New York, NY
Dennis Roellke retweeted
String Matching at Scale: A call for interdisciplinary collaboration and better-directed resources Software engineering is an open-world problem with multiple decentralized players. Abstraction can be a treacherous pathway. queue.acm.org/detail.cfm?id=… @dns43
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Dennis Roellke retweeted
Are you working at the intersection between security and policy? Have you been deep in your research and now want to push for impact by shaping policies? @C4DT_EPFL at @EPFL_en has got you covered with their digital trust fellowship! recruiting.epfl.ch/Vacancies…
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Dennis Roellke retweeted
OSS-Fuzz Visual Studio Code Extension Introduction! New extension that can significantly improve #fuzz dev experience. I made a demo in which I increase cJSON code coverage from 43% to 73% using convenient features from the extension: piped.video/watch?v=7bvRbESP…
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Dennis Roellke retweeted
It’s official: I am starting a new team in @TechAtBloomberg’s CTO office focusing on 100% infrastructure and security research. In scope: certified software, secure (distributed) systems and verified networks. I am immediately hiring senior researchers to fill up the new roles!
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Dennis Roellke retweeted
I am proud to present you the pre-print of our paper on GWP-ASan. 5+ years of work by four companies, spanning Server, Desktop, and Mobile, running on billions of devices. Finding and fixing thousands of bugs and potential vulnerabilities. arxiv.org/abs/2311.09394
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Dennis Roellke retweeted
finally, a good reason for the internet of things
Today, to celebrate Ukraine’s Independence Day, dozens of IP cameras with speaker outputs have been hacked to play patriotic music in Russia as well as occupied Crimea and Donbas.
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Dennis Roellke retweeted
Updated cyber market research exclusive for @EnergyImpact_ members, but the DevSecOps Market Landscape is available to all! #DevSecOps #Cybersecurity hypervisor.vc/insights/cyber…
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Dennis Roellke retweeted
After two years of hard work, I'm happy to announce that our company @emproofGmbH closed a 2M funding round. This allows us to push the state of embedded security and protect binary applications against reverse engineering and exploitation. Thanks to our investors and my team :)
We are happy to announce that we just closed a 2M investment round. Thanks to our investors @TIINCapitalBV, @HTGF and Cyber Impact Ventures. tiincapital.nl/tiin-capital-…
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We lost a 20 year old woman on the Upper East Side tonight. She was pushing a stroller when a gunman took her life. More guns in our city means more lives lost. It means more babies crying as those who love them lie dead. We cannot allow this epidemic to keep claiming lives.
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Dennis Roellke retweeted
Congratulations to Dennis Roellke @dns43 on defending his PhD at @Columbia, getting married, and signing a full time offer from @TechAtBloomberg all under 3 weeks! That’s what I call an over-achiever :)
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Dennis Roellke retweeted
We need to rekindle the discussion @CSrankings to include @NDSSSymposium by default as one of the top 4 conferences in security. Please join in on the discussion on GitHub to get NDSS into the top4 list for security github.com/emeryberger/CSran… (corresponding to the earlier poll)
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Dennis Roellke retweeted
My paper: "Playing for K(H)eaps: Understanding and Improving Linux Kernel Exploit Reliability" just got listed in USENIX Sec 22 recently. The systematic study was the key to my recent success in kctf. Check it out!usenix.org/conference/usenix…
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Dennis Roellke retweeted
A federal jury today awarded Columbia University more than $185 million in damages after finding that NortonLifeLock Inc. infringed two patents related to groundbreaking cybersecurity safeguards invented by Columbia professors. bit.ly/3FnsT2F
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Unexpected to see Swift up there. Pushing my first iOS app, it felt like JavaScript++, but I wouldn’t have expected the compiler engineering to be this much better … quite the opposite of what other institutions did to PHP …
Dennis Roellke retweeted
In today's 🇪🇺 news, it has been ruled that no contract can prevent you from decompiling software you bought, if your goal is fixing a bug. 👨‍⚖️ curia.europa.eu/juris/docume…
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Dennis Roellke retweeted
After 11.5 years at @ruhrunibochum and @HGI_Bochum, I’m now moving to @CISPA. Thanks a lot for all the nice collaborations in the past, the picture summarizes some of the highlights - Thank you for this nice present 😊
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Dennis Roellke retweeted
Open to everyone! The first-ever 2021 Microsoft Research Summit, Oct 19 - 21, with over 150 sessions across 16 tracks, provides the global research community with an opportunity learn from experts pushing the frontiers of technology. Register now: aka.ms/microsoftresearchsumm…
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Dennis Roellke retweeted
It has been silence about TastelessCTF'21 for a while! Thus, time for announcements: 1) For maximum challenge quality and CTF experience, we reduced the playtime to 24h! New start time: Oct 2nd 13:00 UTC! 2) Vet your gamehacking skills! We will present "Tasteless Shores" to you!
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Dennis Roellke retweeted
This is a great video. It covers Gödel's incompleteness, the halting problem and more. It also has about 10 million views, proving that good math (and CS) videos can attract interest. As computer scientists, we should invest more in such activities. piped.video/watch?v=HeQX2Hjk…
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Dennis Roellke retweeted
My scooter was stolen last week. Unknown to the thief, I hid two Airtags inside it. I was able to use the Apple Find My network and UWB direction finding to recover the scooter today. Here’s how it all went down:
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