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Dan Geer
geer.tinho.net · Personal blog · on HN since 2012
Dan Geer is a security expert who publishes transcripts of his talks on cybersecurity policy, risk, and the future of the field.
What HN saysCommenters call his talks well worth reading, and cite them on cyberwar scenarios, privacy and obfuscation, and his ties to US intelligence.
27HN people shared it
9linked it in comments
21stories submitted
105story points
2 years agolast shared
2012people per year2026
Most-shared posts
- 1Cybersecurity as Realpolitik10 people · 60 points · first shared 2014 · 2 comments on HN
- 2Tradeoffs in Cyber Security2 people · 15 points · first shared 2013 · 1 comments on HN
- 3Trends in Cyber Security2 people · 3 points · first shared 2013 · discussion on HN
- 4We Are All Intelligence Officers Now - Dan Geer2 people · 2 points · first shared 2014 · discussion on HN
- 5Prediction and the Future of Cybersecurity – Dan Geer1 people · 6 points · first shared 2016 · discussion on HN
- 6Security of Things1 people · 4 points · first shared 2014 · discussion on HN
- 7Michael Crichton: “Why Speculate?” & The Murray Gell-Mann Amnesia Effect (2002)1 people · 3 points · first shared 2020 · 1 comments on HN
- 8For Good Measure: The Undiscovered [pdf]1 people · 2 points · first shared 2015 · discussion on HN
- 9Criticality, Rejectionists, Risk Tolerance1 people · 2 points · first shared 2012 · discussion on HN
- 10Hard Choices in Cybersecurity by Dan Geer1 people · 2 points · first shared 2020 · discussion on HN
- 11A Quant’s View of Software Supply Chain Security [pdf]1 people · 2 points · first shared 2020 · discussion on HN
- 12People in the Loop: Are They a Failsafe or a Liability?1 people · 1 points · first shared 2012 · discussion on HN
- 13Digital Watermarks Are Not Ready for Large Language Models – Dan Geer [pdf]1 people · 1 points · first shared 2024 · discussion on HN
- 14Where the Science Is Taking Us in Cybersecurity1 people · 1 points · first shared 2015 · discussion on HN
- 15Dan Geer – SOURCE Boston 2017, closing keynote1 people · 1 points · first shared 2017 · discussion on HN
What HN people wrote when they linked it
dmix · 2024-11-27
Reminds me of a Dan Greer talk he gave at NSA from 2014 http://geer.tinho.net/geer.nsa.26iii14.txt
the basic gist is in the event of a cyberwar you could brick millions of peoples routers and their only natural solution would be to go to BestBuy to get a new one... which almost certainly is running a 4-5yr old linux/firmware version that is equally vulnerable. Of course this requires some remote access or lateral entry from other systems on the network, but it's an interesting thought experiment regardless.
pdkl95 · 2021-02-18
> Obfuscation may be our best digital weapon.
From Dan Geer's portentous talk "Cybersecurity as Realpolitik"[1][2]:
>> Privacy used to be proportional to that which it is impossible to observe or that which can be observed but not identified. No more -- what is today observable and identifiable kills both privacy as impossible-to-observe and privacy as impossible-to-identify, so what might be an alternative? If you are an optimist or an apparatchik, then your answer will tend toward rules of data procedure administered by a government you trust or control. If you are a pessimist or a hacker/maker, then your answer will tend towards the operational, and your definition of a state of privacy will be my definition: the effective capacity to misrepresent yourself.
[1] https://www.youtube.com/watch?v=nT-TGvYOBpI
[2] http://geer.tinho.net/geer.blackhat.6viii14.txt
hiq · 2015-10-31
This talk by Dan Geer is really great. Worth watching, or reading [1].
[1] http://geer.tinho.net/geer.blackhat.6viii14.txt
worklogin · 2015-02-25
More like a theorem. And Dan Geer is totally worth reading.
http://geer.tinho.net/geer.rsa.28ii14.txt
https://encrypted.google.com/search?hl=en&q=site%3Ahttp%3A%2F%2Fge…
joveian · 2019-03-10
It has been a while since I read it but the first thing that came to mind is this talk by Dan Geer (who is closely connected to US intelligence agencies):
http://geer.tinho.net/geer.blackhat.6viii14.txt
insertcredit · 2018-10-13
It's clear to me that this is nowhere near accurate and I'm not sure why you insist on making these sort of claims.
One only has to look at self-driving cars to disprove you.
Dan Geer also entirely disagrees with what you wrote [1] [2] and you're no Dan Geer, sorry to say..
[1] http://geer.tinho.net/geer.indiana.19x17.txt
[2] http://geer.tinho.net/geer.uncc.5x16.txt
zby · 2015-11-25
OK when do we restart the software liability discussion?
http://geer.tinho.net/geer.blackhat.6viii14.txt
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&esp…
marshray · 2012-01-12
You realize that the gTLDs they're selling are not going to work reliably?
Single label names always resolve first on the local domain. Except when they don't. This isn't currently a problem because no admin in their right mind would name their servers "com", "org", or "net". It's a tacit convention that's now being broken. I can think of a few security problems this creates, lord knows how many we haven't thought of yet.
ICANN is selling names in a namespace they don't control.
As Dan Geer puts it, "ICANN has devolved into nothing but a protection racket." http://geer.tinho.net/ieee/ieee.sp.geer.1107b.pdf
diafygi · 2014-09-04
> If a couple of Texas brothers could corner the world silver market,[HB] there is no doubt that the U.S. Government could openly corner the world vulnerability market, that is we buy them all and we make them all public. Simply announce "Show us a competing bid, and we'll give you 10x." Sure, there are some who will say "I hate Americans; I sell only to Ukrainians," but because vulnerability finding is increasingly automation-assisted, the seller who won't sell to the Americans knows that his vulns can be rediscovered in due course by someone who will sell to the Americans who will tell everybody, thus his need to sell his product before it outdates is irresistible. This strategy's usefulness comes from two side effects: (1) that by overpaying we enlarge the talent pool of vulnerability finders and (2) that by making public every single vuln the USG buys we devalue them. Put differently, by overpaying we increase the rate of vuln finding, while by showing everyone what it is that we bought we zero out whatever stockpile of cyber weapons our adversaries have. We don't need intelligence on what weapons our adversaries have if we have something close to a complete inventory of the world's vulns and have shared that with all the affected software suppliers.
Source: http://geer.tinho.net/geer.blackhat.6viii14.txt
Video: https://www.youtube.com/watch?v=nT-TGvYOBpI&t=36m45s