Dhruv AHUJA (@new23d) header
Dhruv AHUJA (@new23d) profile picture

Dhruv AHUJA

@new23d

Making network egress filtering effective, reliable and usable. Founder & Chief Engineer at @ChaserSystems

 Cambridge, England
new23d.com/
Joined May 2008
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Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)Photo by Dhruv AHUJA (@new23d)
My latest blog on the Agent's DNS tricks in the HF - OAI incident got picked up by @lancinimarco's newsletter issue 352 😃 Newsletter link: cloudseclist.com/issues/issu…
Image from Dhruv AHUJA (@new23d)
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By the way, in case anyone was still wondering whether they are completely useless, Binance holds SOC 2 Type 2, ISO 27001, and several other certifications.
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Jussi (@jussisaur) profile picture
Jussi
@jussisaurOct 29
me a month ago: bro using public wifis is completely fine in 2026, everything uses TLS, stop being paranoid eMudhra: 4 me: well,
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Tivadar Danka (@TivadarDanka) profile picture
Tivadar Danka
@TivadarDankaOct 25
Master graph theory. Master node relationships. Master edge weights. Master network traversal until complex systems reveal their underlying structure. Graph theory is the ultimate lens for understanding connected data.
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Paul Graham (@paulg) profile picture
Paul Graham
@paulgOct 26
The reason UK universities demand more equity than US universities in "spin outs" is not that they're tougher negotiators. It's that they're too inexperienced to realize they're charging over market rate.
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Where does one work in San Francisco for a day? #serendipity
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Corey Quinn (@QuinnyPig) profile picture
Corey Quinn
@QuinnyPigOct 23
Replying to @drdroo
What’s the going rate?
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In SF for the whole week @ @unpromptedconf
Image from Dhruv AHUJA (@new23d)
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Scott Piper (@0xdabbad00) profile picture
Scott Piper
@0xdabbad00Oct 22
Things keep happening this week, so just so we're all clear on the rules, no one is allowed to disclose vulns or breaches after Friday morning, until Monday. Them's the rules.
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What baffles me in the eMudhra issue is the statement «a flaw in the code resulted in the second pair of keys being created onboard which were weaker» [1]. Sure, they had a KGC "script" and... 🧵 [1] bugzilla.mozilla.org/show_bu…

2083449 - eMudhra: Private key compromise of Intermediate Certificates

ASSIGNED (naveen.ml) in CA Program - CA Certificate Compliance. Last updated 2026-10-30.

bugzilla.mozilla.org
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...a possibly convoluted and unnecessary key wrapping thing going on. But what generates 'weaker keys' 🤔 An HSM?
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lol amazing
stypr (@brokenpacifist) profile picturestypr@brokenpacifistOct 22
mitmproxy: use `--emudhra` to sign TLS certificates 💀
Image from stypr (@brokenpacifist)
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Reads like Chainguard thought everybody in the world uses their images. It couldn't be further from the truth in the world of #PHP. #phpocalypse
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I, for one, consider 4 a perfectly fine integer between 1 and 39402006196394479212279040100143613805079739270465446667946905279627659399113263569398956308152294913554433653942642
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I'll be speaking on subnetting IPv6 with AI here: eventbrite.co.uk/e/uk-ipv6-c…
UK IPv6 Council Autumn Roundtable

UK IPv6 Council Autumn Roundtable

An afternoon dedicated to the discussion of various IPv6 topics in a roundtable setting.

eventbrite.co.uk
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Has anyone scanned the internet for ECC public keys (and even RSA) and tried all private keys up to 256 to see if this is a more common phenomenon than imaginable? @nadiaheninger ?
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I'll be in SF for @unpromptedconf for the entire week. Looking forward to talk to people interested in security's first principles. 24 Oct - 31 Oct. #unprompted
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Truth is stranger than fiction at 00:20
John bach rose (@johnsixx256) profile pictureJohn bach rose
@johnsixx256Oct 17
Este manifestante Frances es mi puto ídolo!!
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thaidn (@XorNinja) profile picture
thaidn
@XorNinjaOct 17
The 21-year marketing campaign for Curve25519 came to an abrupt end today.
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Lisa Forte (@LisaForteUK) profile picture
Lisa Forte@LisaForteUKOct 16
Here is your daily reminder that alignment is not a security control
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Halvar Flake (@halvarflake) profile picture
Halvar Flake
@halvarflakeOct 13
Reminder: It has been 16 years since Stuxnet was found -- an autonomous self-replicating worm designed to spread across multiple platforms and sabotage nuclear enrichment equipment. If small models might soon be able to copy themselves around that's not a step-change.
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