Andy Koo (@_nd_koo) 's Twitter Profile
Andy Koo

@_nd_koo

Security Researcher @hexensio :)

ID: 1201513033110962176

calendar_today02-12-2019 14:47:00

82 Tweet

240 Followers

1,1K Following

James Kettle (@albinowax) 's Twitter Profile Photo

I'm thrilled to announce "HTTP/1 Must Die! The Desync Endgame" is coming to #DEFCON33! This talk will feature multiple new classes of desync attack, mass exploitation spanning multiple CDNs, and over $200k in bug bounties. See you there!

I'm thrilled to announce "HTTP/1 Must Die! The Desync Endgame" is coming to #DEFCON33!  This talk will feature multiple new classes of desync attack, mass exploitation spanning multiple CDNs, and over $200k in bug bounties. See you there!
hexens (@hexensio) 's Twitter Profile Photo

Hexens is happy to announce the completion of our security review for @zealousswap. The first DEX in Kaspa Ecosystem. Our audit focused on 5 key smart contracts, covering core DEX logic, NFT-based fee mechanics, staking, and farming systems. Full report 🔽

hexens (@hexensio) 's Twitter Profile Photo

One missing subgroup range-check let attackers duplicate proofs & double-spend: When curves, fields, and circuits misalign - duplicated keys, reused proofs, and broken soundness follow. Hexens breaks it down 👇 hexens.io/blog/subgroup-…

ZK Hack (@__zkhack__) 's Twitter Profile Photo

🔔 Time for #ZKMeshMini, join us as we unpack the top developments from this past week in the zk-space. 👾 Quang Dao, Justin Thaler, Ingonyama coauther a paper speeding up Sum-Check 👾 Ciara Nightingale releases a course on developing in Noir 👾 hexens writes an article

hexens (@hexensio) 's Twitter Profile Photo

ZK has broken out of the crypto bubble. Google Wallet, Cloudflare and EZKL now ship zero-knowledge proofs in production. Here’s what that looks like in the real world: hexens.io/blog/zk-usecas…

Remedy (@xyz_remedy) 's Twitter Profile Photo

Uniswap v4 hooks are changing the game, protocol composability up, attack surface even more up. Join our Discord event on July 2 to learn how hooks work, how they can break, and what it means for on-chain security. Get notified on Discord:

Uniswap v4 hooks are changing the game, protocol composability up, attack surface even more up.

Join our Discord event on July 2 to learn how hooks work, how they can break, and what it means for on-chain security.

Get notified on Discord:
hexens (@hexensio) 's Twitter Profile Photo

A $1M cryptography bounty was just announced by Ethereum Foundation. In this post we discuss RS Codes and the conjecture on Proximity Gaps. Proving it could strengthen soundness of RS-based IOPPs, while disproving it could force new systems: hexens.io/blog/proximity…

hexens (@hexensio) 's Twitter Profile Photo

For the first time in history, researchers will compete to build a permanent security knowledge base. Every contribution from the contest will become part of a lasting and evolving resource, designed to serve not just today, but also future generations of builders. We're so

hexens (@hexensio) 's Twitter Profile Photo

Everyone talks about zkVMs. Few talk about the constraint languages that define them. We demonstrated examples with Halo2, Zirgen, and Plonky3 AIR. Not to benchmark, but to show how each expresses computation: hexens.io/blog/zkvm-dsls

PagedOut (@pagedout_zine) 's Twitter Profile Photo

pagedout.institute ← we've just released Paged Out! zine Issue #7 pagedout.institute/download/Paged… ← direct link lulu.com/search?page=1&… ← prints for zine collectors pagedout.institute/download/Paged… ← issue wallpaper Enjoy! Please please please RT to spread the news - thank you!

hexens (@hexensio) 's Twitter Profile Photo

While AI auditors getting so much hype over a single critical finding, which ends up being misleading... We decided to disclose some of the 22 critical findings discovered by a few Glider researchers in live projects worth ~$250M. Here are technical details that we never shared

While AI auditors getting so much hype over a single critical finding, which ends up being misleading...

We decided to disclose some of the 22 critical findings discovered by a few Glider researchers in live projects worth ~$250M.

Here are technical details that we never shared
Defi Security Summit (@summit_defi) 's Twitter Profile Photo

Crypto wallets hold the keys to DeFi but are prone to the same weaknesses across platforms. Andy Koo, Senior Security Researcher at hexens, will speak at DSS about recurring vulnerabilities in browser, mobile, and web wallets and how to secure them against real-world threats.

Crypto wallets hold the keys to DeFi but are prone to the same weaknesses across platforms.

<a href="/_nd_koo/">Andy Koo</a>, Senior Security Researcher at <a href="/hexensio/">hexens</a>, will speak at DSS about recurring vulnerabilities in browser, mobile, and web wallets and how to secure them against real-world threats.
hexens (@hexensio) 's Twitter Profile Photo

Glider’s function filters let auditors surgically target suspicious logic. By function signature, modifier presence, or caller relationships. Feels like writing SQL, but for Solidity.

Remedy (@xyz_remedy) 's Twitter Profile Photo

How 0xkasper hunts bugs, with and without Glider. His exact process, query tactics, and time-saving tricks: A practical blueprint for serious bug bounty hunters: youtube.com/watch?v=511dLf…

Brave (@brave) 's Twitter Profile Photo

The security vulnerability we found in Perplexity’s Comet browser this summer is not an isolated issue. Indirect prompt injections are a systemic problem facing Comet and other AI-powered browsers. Today we’re publishing details on more security vulnerabilities we uncovered.

Dmitrii Goltsov (@dmigo42) 's Twitter Profile Photo

in case you wondered how to run your Glider queries faster, here are some tips 1. set a low exec limit inside the query 2. check what part of the query eats up the resources and optimize it 3. build your own custom solidity scope

Remedy (@xyz_remedy) 's Twitter Profile Photo

did you notice the glider contest in dailywarden? is black okay, or should we go with gold? btw, november 6, $50,000 prize pool. write a query and get paid. easy money. but people still sleeping on this.

did you notice the glider contest in dailywarden?

is black okay, or should we go with gold?

btw, november 6, $50,000 prize pool. write a query and get paid.

easy money. but people still sleeping on this.