Piet Koopman @PietKoop
Joined August 2023-
Tweets134
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Following62
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The "Critical" Chrome GPU bug (CVE-2025-9478) is suspicious. Background: Google Big Sleep recently patched a bunch of high/critical issues in privileged Chrome GPU (their new AI fuzzer). I looked at the code. All the issues require such an uncommon platform functionality, it's…
🚨 New Templates Bounty Issue 💰 CVE-2025-6554 - Google Chrome - Type Confusion 💰 👾 Issue: github.com/projectdiscove… #bugbounty #NucleiTemplates #cve #opensource
🚨 New Writeup Alert! 🚨 " $10,000 Google Bug Bounty: How a Deserialization RCE in AppSheet Could Have Led to Remote Code…" by Yeswehack is now live on IW! Check it out here: infosecwriteups.com/955b0a2e840b #bugbountyhunting #adityasunny06 #remotecodeexecution…
zero‑click iMessage exploit? 🕵️♂️ I diffed iOS 18.3 vs 18.3.1, uncovered the logic flaw and dropped RE walkthrough and forensic tips so you can trace it too. jaybird1291.github.io/blog-cyber/en/…
@rohanpaul_ai It's more readable here: github.com/Klaudioz/claud…
Grok 4 is a GENIUS stock trader. But most people don't know how to use it. Here are 10 prompts to use for stock trading automation:
A short GitHub repository explaining on weaponizing WSL file extensions github.com/dmcxblue/WSL-P… #redteam
A Brief Analysis of Chrome's 0day CVE-2025-6554 in the Wild ti.qianxin.com/blog/articles/…
Buffer Overflow (GPU process) in Chrome Windows Media Foundation Encode Accelerator (reward: $15000) crbug.com/409619251
Exploited ITW (CVE-2025-6558)[427162086]Incorrect validation of untrusted input(transform feedback buffer modification) chromium-review.googlesource.com/c/angle/angle/… chromereleases.googleblog.com/2025/07/stable… Reported by Clément Lecigne(@_clem1) and Vlad Stolyarov(@vladhiewsha)
Kimi K2 is basically DeepSeek V3 but with fewer heads and more experts:
Chrome lies. Safari lies. No single RFC covers all the flaws in cookies parsing. Don’t miss my talk “Cookie Chaos: Exploiting Parser Discrepancies” at @Steel_Con track 2 at 16:30-17:30
These 3 blogs will make you DANGAREOUS in Web3. If you are a dev or auditor and actually trying to level up - stop scrolling and start reading: 1. rareskills.io/blog 2. dacian.me 3. mixbytes.io/blog Read with intent. Crazy content ✌️
⚠️⚠️ CVE-2025-32023: Redis Vulnerability Opens Door to Remote Code Execution 🎯1.3m+ Results are found on the en.fofa.info nearly year. 🔗FOFA Link: en.fofa.info/result?qbase64… FOFA Query:app="redis" 🔖Refer:github.com/redis/redis/se… github.com/redis/redis/co… #OSINT #FOFA…
0-day Google Chrome Sandbox Escape issues.chromium.org/issues/4051430…
🔥🔥🔥 "Speculative Optimizations for WebAssembly using Deopts and Inlining" - Daniel Lehmann and Matthias Liedtke v8.dev/blog/wasm-spec…
Mutation-Based XSS + V8 type confusion + V8 sandbox escape = RCE on Basecamp. Disclosed it on Hackerone: hackerone.com/reports/2819573 go read the comments if you wanna see what a week of exploit dev pain looks like.
Quimera 🛠️ data-driven exploit generation tool for Ethereum smart contracts using LLMs and Foundry. github.com/gustavo-grieco…
A standardized framework for verifying the security of smart contract 🫡 github.com/ComposableSecu…
Hackers Exploit Misconfigured Docker APIs to Mine Cryptocurrency via Tor Network thehackernews.com/2025/06/hacker…
Kelly @kelly_hogue29
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Nobler @cryptonobaler
233 Followers 7K Following Crypto OG retired from the 9 to 5 thanks to shitcoins | Sharing my opinions and manipulating markets | Regulation is about to eliminate 99% of all shit coins.
VALR @VALRdottcom
11 Followers 182 Following Buy & sell #bitcoin and other cryptos 💙 Pay & get paid with VALR Pay 💙 For support: Inbox Here 💙
Trend Zero Day Initia... @thezdi
83K Followers 16 Following Trend Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
QuillAudits | Web3 Se... @QuillAudits_AI
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OccupytheWeb @three_cube
247K Followers 3K Following Pentester, Forensic investigator, and former college professor. Trained hackers at every branch of US military and intelligence. Visit me at https://t.co/G478wufszw
starlabs @starlabs_sg
9K Followers 20 Following A Singapore company that discovers vulnerabilities to help customers mitigate the risks of cyber attacks. Organisers of @offbyoneconf
stephen @_tsuro
10K Followers 527 Following @v8js security, CTFs and CPU vulnz. LCHL. @[email protected]
BlockSec Phalcon @Phalcon_xyz
6K Followers 41 Following See Every Threat, Block Every Hack | Detect and Mitigate Compliance Risks (AML/CFT) | Built by @BlockSecTeam 👉TG: https://t.co/RT0FyaxsIE
Ivan Fratric 💙💛 @ifsecure
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Security Bug Aggregat... @BugsAggregator
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Project Zero Bugs @ProjectZeroBugs
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Nicolas Krassas @Dinosn
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☣ KitPloit - Hacker... @KitPloit
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Shieldify Security @ShieldifySec
4K Followers 215 Following Web3/Web2 Security Company. Trusted by Dinero, Multipli, Ambire, Ion, IPOR, Colb, Pear, Kanpai, Hana & many more. Book an audit: https://t.co/Jf6SO3wlMP
UXLINK @UXLINKofficial
865K Followers 265 Following U LINK X（∞). Link more, get more. #Web3 ソーシャルプラットフォーム UXLINK is an AI-Powered Web3 social platform and infrastructure, where super dapps take off.
Safe.eth @safe
139K Followers 270 Following Safe{Wallet} is the go-to multisig wallet supporting the Safe smart account.
ZachXBT @zachxbt
906K Followers 2K Following Scam survivor turned 2D investigator | Advisor @paradigm
Felix Domke (@felix@d... @tmbinc
2K Followers 102 Following Don't turn it off, take it apar..bzzzt mastodon: https://t.co/Y1dH4VGlNl
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BitMEX @BitMEX
172K Followers 178 Following The world's leading cryptocurrency derivatives exchange since 2014. Inventor of the Perpetual Swap. Connect with us: https://t.co/7bvAkxEsy4
ZKsync Developers (�... @zkSyncDevs
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L2BEAT 💗 @l2beat
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SunSec @1nf0s3cpt
14K Followers 1K Following CISO @xrexinc | Founder @DeFiHackLabs Web3 Security Community.
VALR @VALRdotcom
38K Followers 235 Following Buy & sell #bitcoin and other cryptos 💙 Pay & get paid with VALR Pay 💙 For support: https://t.co/H5JbfHHKFR 💙 Platform status: https://t.co/yRAqXfqA3e
Kernel @Kernel0x
14K Followers 568 Following Technology as craft. Currently in KB11, our 11th block. Applications always open, hear back from us within two weeks. https://t.co/f2yPgH1L5d
Daniel DeFi @TheDeFiList
24K Followers 2K Following ⭐Follow me for Cryto & DeFi Posts⭐ DM's Open. Allocations Welcome. Not Investment Advice
Daily OSINT @DailyOsint
41K Followers 111 Following Daily Open Source Intelligence Powered by @SOCRadar XTI® #OSINT #XTI #ThreatIntelligence
SOS Intelligence @SOSIntel
19K Followers 2K Following The Dark Web Monitoring platform for business and enterprise. Managed Threat Intelligence services to detect darkweb & OSINT data-breach and theft. #NAFO Intel
Dark Web Intelligence @DailyDarkWeb
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TradingView @tradingview
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Arkham @arkham
1.6M Followers 91 Following Trade with Intelligence 🔎 | Cryptocurrency Exchange & Blockchain Analytics Platform | Earn up to $100 in rewards for registering.
Chainalysis @chainalysis
60K Followers 565 Following Building trust in blockchains among people, businesses, and governments. Our crypto compliance and investigation software powers hundreds of top institutions.
CoinDesk @CoinDesk
3.4M Followers 2K Following Leading the conversation on accelerating crypto’s future. Follow @CoinDeskPodcast @consensus2026 @Consensus_HK @CoinDeskES @CoinDeskMarkets @CoinDeskData
The Hacker News @TheHackersNews
932K Followers 2K Following The #1 trusted source for cybersecurity news, insights, and analysis — built for defenders and trusted by decision-makers.
BleepingComputer @BleepinComputer
240K Followers 200 Following Breaking cybersecurity and technology news, guides, and tutorials that help you get the most from your computer. DMs are open, so send us those tips!
vitalik.eth @VitalikButerin
5.8M Followers 503 Following I choose balance. First-level balance. mi pinxe lo crino tcati https://t.co/gCQrmCb0ih
🌪️ Tornado.cash ... @TornadoCash
73K Followers 258 Following A fully decentralized protocol for private transactions on Ethereum. https://t.co/M8Y5huT7DT…
offside0011 🧙 @MageIntern
639 Followers 337 Following Mage Intern at @Offside_Labs | Passionate about #Web3, #Blockchain and #Security | Exploring the intersection of crypto & decentralization. Views are my own.
BlockSec @BlockSecTeam
26K Followers 146 Following Smart Contract Audit | Security Monitoring | AML/CFT (KYA/KYT) | Crypto Investigation | @Phalcon_xyz @MetaSleuth @MetaDockTeam 👉TG: https://t.co/owokTLanv5
Curta @curta_ctf
8K Followers 54 Following A programming competition platform on EVM and community of protocol & security experts. https://t.co/qIczdhOjE1
Mr Anon @ShieldifyAnon
6K Followers 486 Following Founder of @ShieldifySec🛡️ Blockchain security audits. Your security partner, for the long term.
🚨 Cyvers Alerts �... @CyversAlerts
20K Followers 74 Following Preemptive prevention of security, fraud, and compliance threats in Web3. Trusted by Ledger, BitGo, Uphold, Cryptocom & more. 📧 [email protected] | @Cyvers_Trends for United States
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