Dominic Chell 👻 @domchell
Just your friendly neighbourhood red teamer @MDSecLabs @nighthawk_c2 | Creator of /r/redteamsec | https://t.co/3k3EBAZqGd | https://t.co/KwO2OwDOkl mdsec.co.uk Manchester, England Joined February 2009-
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As someone who reported CVE-2026-27914 I can tell you its not related to MMC console at all. Maybe its new Microsoft tactic to confuse LLM's with incorrect advisories?🤔 😂😂
One researcher. ~$300 in API tokens. A working PoC against an April Patch Tuesday CVE. Open-sourcing PatchWatch + Pocsmith, an agentic patch-diffing → exploit pipeline I built from off-the-shelf parts. originhq.com/blog/patch-dif…
idanmalihi.com/tracking-north… Cipher Security Labs researcher @Idan_Malihi published an excellent analysis of Kimsuky APT infrastructure.
@msftsecresponse Why is teams now blocking links to articles on the hacker news? This is beyond reprehensible. thehackernews.com/2026/06/unpatc…
OAIC's CFP is now open! The first conference dedicated to the cutting edge of the offensive use of AI is returning for its second year. Speakers will enjoy three nights at a four-star beachfront resort, which includes all meals and drinks, three exclusive parties, and a Michelin-star welcome dinner. Please see sessionize.com/offensive-ai-c… for accepted topics.
@passthehashbrwn @dodo_sec Just without the credibility
Everyone except me ? We are in fact still in court over this.
Over the past several days, we have been listening to the conversation around coordinated disclosure and the relationship between security researchers and vendors. We recognize that this relationship is both critical and, at times, fragile. We deeply value the security community,
"It speaks to a [Microsoft] decline that we have been documenting on this podcast, week after week..."
NEW POD UP!! Microsoft threatens legal action against researchers who drop zero-days. We debate whether it’s a fair line against extortion, or amateur-hour PR from a company that already torched its own research community? Costin plays reluctant defender, JAGS says the damage
#ESETresearch released its latest APT Activity Report (Oct 2025–Mar 2026): 🇨🇳China-aligned groups focused on Venezuela, Gulf states, and AI & robotics industry in 🇰🇷South Korea, while 🇰🇵North Korea-aligned APTs targeted the nuclear sector. Full report: web-assets.esetstatic.com/wls/en/papers/…
We're looking for a cover for the next issue of Phrack! Retro sci-fi, terminals, dystopian systems, chrome futures, hacker manuals from an alternate timeline. Make something timeless and strange. Send your work or idea to [email protected] Deadline June 30th
Not long after the 9/11 terrorist attacks MSRC published “It’s time to end information anarchy”. It was one step short of labeling security researchers terrorists. The essay was not well received by industry _at all_ and triggered a sea change at MS, ushering in a new era. 1/2
@DanNeidle @_RastaMouse feels good to give back eh?
Tax in the UK is the highest it’s been since 1945. That’s well understood – but another trend has been largely missed: the number of taxes in the UK is at its highest since the end of the Napoleonic Wars.
... not to use them? I feel like I've lost the plot entirely at this point.
The keynote I gave at @offensive_con earlier this month in Berlin is now online youtu.be/Pbdt5DQ6hAQ?si…
A bunch of ppl complained about ethics of bug hoarding, saying we should report to MSRC etc when we mentioned we hold on to 0days to use during RT ops in mdsec.co.uk/2026/03/rip-re… How the tables have turned 😂
Earnings Before Tokens
Build better detections without heavy overhead. - Around 20 high-order detections for Windows and Entra ID - AiTM, Entra ID token theft, and stolen token abuse detection - Full attack-chain labs with realistic false positives - Vendor-agnostic logic adaptable across platforms
MSRC coming in hot with the unprecedented astronomical level of psychotic delusion
Justin Elze @HackingLZ
70K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Florian Roth ⚡️ @cyb3rops
220K Followers 3K Following Head of Research @nextronsystems #DFIR #YARA #Sigma | detection engineer | creator of @thor_scanner, Aurora, Sigma, LOKI, YARA-Forge | always busy ⌚️🐇 | vi/vim
Adam Chester 🏴�... @_xpn_
38K Followers 538 Following Hacker for Hire at @SpecterOps | Blog at https://t.co/tjfTOlmau2 | Insta at https://t.co/PqR6CZQ48T
Grzegorz Tworek @0gtweet
38K Followers 2K Following My own research, unless stated otherwise. Not necessarily "safe when taken as directed". GIT d- s+: a+ C++++ !U !L !M w++++$ b++++ G-
ippsec @ippsec
123K Followers 364 Following
mgeeky | Mariusz Bana... @mariuszbit
14K Followers 949 Following 🔴 Offensive Security Developer @ Outflank, Red Team operator, ex-AV dev, ex- malware researcher 🫖 Green tea lover
Vincent Yiu @vysecurity
32K Followers 344 Following Director, Red Team / Offensive Security. Help organizations safeguard their businesses from the bad guys.
Mike Felch (Stay Read... @ustayready
17K Followers 2K Following Offensive @ TrustedSec | Hacking since Renegade BBS backdoors | Prior CrowdStrike/BHIS | In Christ's grip | Fighter for truth | K1HAQ
Josh @passthehashbrwn
10K Followers 296 Following Adversarial Simulation at IBM, tweets are mine etc.
Rad @rad9800
10K Followers 687 Following ex-founder. building solutions to secure organizations. prev @deceptiq_ (acq.), now at @thinkstcanary
SEKTOR7 Institute @SEKTOR7net
16K Followers 350 Following Homo Aptus. Vincit qui se vincit - Publilius Syrus. Consulting, Training, Technology, Cyber domain, and more... @x33fcon founder.
an0n @an0n_r0
14K Followers 731 Following CRT(E|O|L) | OSCP | @RingZer0_CTF 1st (for 2yrs) | HackTheBox Top10 | RPISEC MBE | Flare-On completer | GoogleCTF writeup winner | SSD research | Math MSc |🇭🇺
Jean @Jean_Maes_1994
12K Followers 1K Following @sansoffensive Certified instructor/SEC565 author/SEC699 co author https://t.co/cp5DerI3g4
x86matthew @x86matthew
23K Followers 203 Following system emulation / reverse-engineering / binary analysis. @the_secret_club
DebugPrivilege @DebugPrivilege
41K Followers 2K Following Not active anymore on X. Problem solver with a passion for troubleshooting complex issues.
sn🥶vvcr💥sh @snovvcrash
12K Followers 494 Following Sr. Penetration Tester / Red Team Operator @ptswarm :: Author of the Pentester’s Promiscuous Notebook :: He/him :: Tweets’re my pwn 🐣
b33f | 🇺🇦✊ @FuzzySec
33K Followers 1K Following 意志 / mobile research @ ▓▓▓▓▓ / Team 501 / ex IBM Capability Lead & FireEye TORE / I rewrite pointers and read memory / AI Psychoanalyst / Teaching @CalypsoLabs
bright @bright0xd
0 Followers 254 Following
Hypnoze @Hypnoze57
97 Followers 536 Following
Cyber Safety Guy @CyberSafetyGuy_
4 Followers 117 Following Child Online Safety Advocate, RAFP Veteran, Unit 42, Mental Health Awareness champion (C-PTSD) Rugby, F1, cycling and painting warhammer figures.
kapla @LorenzoMeacci
271 Followers 51 Following 18; Cybersecurity researcher == unemployed. Be humble, there is always something to learn.
모래 @morae_tech
8 Followers 620 Following
th3c0d1 @th3c0d1
19 Followers 665 Following
poo el @poo_el60523
15 Followers 885 Following
ypsehlig @ypsehlig
172 Followers 512 Following Father of two boys. Teacher, researcher - offensive security. Staff at https://t.co/NDhANBwWt0
wackaid @wackaid
28 Followers 2K Following ai - security researcher - 👕🐀- friendly neighborhood nerd & starter builder
Am @Amjrwo
0 Followers 128 Following
BJORKA @RealBjorkanism
691 Followers 7K Following
Ashokkrishna(le0li9ht... @ashokkrishna99
534 Followers 2K Following SOC Lead | Microsoft Sentinel SME | ThreatHunting|Threat Intelligence |OSINT|Darkweb |DFIR|Linux Lover | Azure| KQL|Threat Simulations
bdcd @bdcdhm3z
4 Followers 249 Following
Mohamed Aziz Hidri @0xh1dr1
5 Followers 468 Following
jd @c0kernel
144 Followers 384 Following Interested in books, mathematics, running, rock climbing, and infosec.
Rafał @lemielek
108 Followers 993 Following
Bert-Jan 🛡️ @BertJanCyber
4K Followers 622 Following CSIRT | https://t.co/Tu1l2ZFe0T | Microsoft Security MVP | Blue & Purple Team | SOC | SIEM | Threat Hunting | Detection Engineering | #KQL |
Francesco Di Viesto @Frank_Di_Viesto
7 Followers 892 Following
d4rkm4tter (Mike Spic... @d4rkm4tter
13K Followers 4K Following #WiFiCactus | #WiFiKraken | Utah | @dc801 | free range wigler (ask @lintile) | AI Cyber the Cybers | Apex Storage x21/x16 designer
✍ Anoop Karumbathil @anoopknarayan
113 Followers 2K Following
Chris Dunne @_chrisdunne
565 Followers 2K Following Senior Security Engineer ⬩ AWS Community Builder - Security & Identity 🛡️
epsilon @bravoecho101
37 Followers 803 Following
Marco Xiang @marcoxiang
39 Followers 1K Following
Skye Earing @EaringSkye81040
7 Followers 791 Following Just back, framed by Sonoma County CA for Mayhem, totally free and have the receipts - in exile in the Free State
teome @teome
40 Followers 1K Following
Kylian Mbappe @turtle0943218
3 Followers 84 Following
adsasdad @adsasdad229965
1 Followers 220 Following
avchetan dhwani @D22176Dhwani
29 Followers 1K Following
Alaia Rivera @rivera_ala14592
0 Followers 32 Following
D4rthMaulCop @D4rthMaulCop
0 Followers 54 Following
Ownternet @ownternet
0 Followers 7K Following
Filip Woźniak @filip__w
0 Followers 19 Following
ranint404 @ranint404
3 Followers 181 Following
cr3ghost @cr3ghost
895 Followers 272 Following A student passionate about reverse engineering, windows internals, anti-cheat research, malware research, and exploit research. Aspiring red teamer.
Alvaro @Alvaroiar
42 Followers 589 Following
Justin Elze @HackingLZ
70K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Florian Roth ⚡️ @cyb3rops
220K Followers 3K Following Head of Research @nextronsystems #DFIR #YARA #Sigma | detection engineer | creator of @thor_scanner, Aurora, Sigma, LOKI, YARA-Forge | always busy ⌚️🐇 | vi/vim
Adam Chester 🏴�... @_xpn_
38K Followers 538 Following Hacker for Hire at @SpecterOps | Blog at https://t.co/tjfTOlmau2 | Insta at https://t.co/PqR6CZQ48T
chompie @chompie1337
88K Followers 1K Following hacker, exploit developer/weird machine mechanic head of X-Force Offensive Research (XOR) @IBM
Grzegorz Tworek @0gtweet
38K Followers 2K Following My own research, unless stated otherwise. Not necessarily "safe when taken as directed". GIT d- s+: a+ C++++ !U !L !M w++++$ b++++ G-
ippsec @ippsec
123K Followers 364 Following
mgeeky | Mariusz Bana... @mariuszbit
14K Followers 949 Following 🔴 Offensive Security Developer @ Outflank, Red Team operator, ex-AV dev, ex- malware researcher 🫖 Green tea lover
Vincent Yiu @vysecurity
32K Followers 344 Following Director, Red Team / Offensive Security. Help organizations safeguard their businesses from the bad guys.
Mike Felch (Stay Read... @ustayready
17K Followers 2K Following Offensive @ TrustedSec | Hacking since Renegade BBS backdoors | Prior CrowdStrike/BHIS | In Christ's grip | Fighter for truth | K1HAQ
Josh @passthehashbrwn
10K Followers 296 Following Adversarial Simulation at IBM, tweets are mine etc.
Rad @rad9800
10K Followers 687 Following ex-founder. building solutions to secure organizations. prev @deceptiq_ (acq.), now at @thinkstcanary
SEKTOR7 Institute @SEKTOR7net
16K Followers 350 Following Homo Aptus. Vincit qui se vincit - Publilius Syrus. Consulting, Training, Technology, Cyber domain, and more... @x33fcon founder.
Jean @Jean_Maes_1994
12K Followers 1K Following @sansoffensive Certified instructor/SEC565 author/SEC699 co author https://t.co/cp5DerI3g4
Oliver Lyak @ly4k_
9K Followers 267 Following Yet another security researcher 🔦 Github: https://t.co/7WFOFz17KI
x86matthew @x86matthew
23K Followers 203 Following system emulation / reverse-engineering / binary analysis. @the_secret_club
DebugPrivilege @DebugPrivilege
41K Followers 2K Following Not active anymore on X. Problem solver with a passion for troubleshooting complex issues.
Nightmare Eclipse @ChaoticEclipse0
9K Followers 574 Following
ANY.RUN @anyrun_app
33K Followers 191 Following Empowering businesses with proactive security solutions: Interactive Sandbox, TI Lookup and Feeds. Sign up: https://t.co/8hIX0Qh5ME
Nighthawk C2 @nighthawk_c2
72 Followers 2 Following Advanced and evasive C2 to support Red Team Operations, by @MDSecLabs
Rtl Dallas @RtlDallas
681 Followers 194 Following
Channel 4 News @Channel4News
2.3M Followers 4K Following Subscribe for our newsletters on Substack: https://t.co/OUEsoX7CYp
R.B.C. @G3tSyst3m
2K Followers 142 Following Security Professional and Researcher with over a decade of experience. I'm fairly low profile, but share useful info from time to time.
Infrawatch @infrawatch_app
727 Followers 0 Following Detect early. Multi-source infrastructure intelligence, delivered in real time, detections, context, and signals you can act on.
Fabian Bader @fabian_bader
10K Followers 889 Following #Security #Azure #AAD #MDE #M365 #AD #PKI #XDR #EntraID Microsoft MVP Tweets and opinions are my own @[email protected]
Johnny Fishcake @johnnyspandex
290 Followers 110 Following
Markus Wulftange @mwulftange
3K Followers 207 Following Principal Security Researcher and Pâtissier at @codewhitesec
DeMarcus @medarkus_
1K Followers 910 Following Sr Offensive SecEng (Red Team) | Former CTFer w/ @pfs_ctf | #BlackTechTwitter
Craig S. Blackie @craigsblackie
449 Followers 514 Following Hacker, network admin, ale drinking geek and lover.
Grant Smith📡 @S1n1st3rSecuri1
728 Followers 937 Following Founder of @Surfacesec & @PhantomCyberSec | DEF CON Speaker | Red Team Lead @ a bank | Hacker of scammers, the DOE, DOD, and more
Daax @daaximus
12K Followers 406 Following reverse engineering • secure processor design • system emulation • µarch bugs @the_secret_club
sixtyvividtails @sixtyvividtails
4K Followers 400 Following Currently working as an independent GUID merchant. Fully licensed. I acquire, produce, and sell high-quality GUIDs.
J⩜⃝mie Williams @jamieantisocial
12K Followers 7K Following threats && stuff || #UNC1799 forever 🤘|| @DistrictHeather ♥️ + 🍷, ✌️🇺🇸➡️🇫🇷 **𝚅𝚒𝚎𝚠𝚜 𝚎𝚡𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚊𝚛𝚎 𝚖𝚈 օ𝚠𝚗**
Elastic Security Labs @elasticseclabs
5K Followers 729 Following Elastic Security Labs is democratizing security by sharing knowledge and capabilities necessary to prepare for threats. Spiritually serving humanity since 2019.
Zach @svch0st
4K Followers 1K Following Everything DFIR @TheDFIRReport | @CuratedIntel | @XintraOrg https://t.co/ggakuKBS0S
Andy Gill @ZephrFish
20K Followers 639 Following Security Researcher, RT, Director & Course Author at @ZephrSec |Staff on @CuratedIntel | Lab Creation @XintraOrg | https://t.co/gvGwReANzD - check out my RT course
Steve Borosh @rvrsh3ll
1K Followers 730 Following The future is not set. There is no fate, but what we make for ourselves. - John Connor
Tamás B. @benyaa
34 Followers 129 Following
eversinc33 🤍🔪�... @eversinc33
7K Followers 1K Following reversing/deobfuscation/drivers @ https://t.co/64HAro8Scw
Cyber_OSINT @Cyber_O51NT
22K Followers 315 Following #OSINT treasure hunter, investigator, #CyberThreatIntel analyst. Opinions are my own. Follow me on Telegram https://t.co/i6VBbeUXgd for cyber news.
Alyse @Bellebytes
1K Followers 2K Following Executive Director of Security Red Team #GXPN #GMOB / I also sing for a band called LYLVC
William Knowles @william_knows
1K Followers 3 Following
lazzslayer @lazzslayer
4K Followers 595 Following Red Team | Co-Author of Redefining Hacking | VP for @bsidesnash | Advisory Board for @redteamvillage_ | OSCP, GCPN, CISM, GPEN | 🤠
A. Hacker @armitagehacker_
233 Followers 44 Following Developer of Armitage and Cobalt Strike--Tools for Red Teams.
Andrew Morris (afk) @Andrew___Morris
21K Followers 3K Following 🔳 Internet listener. Founder/Chief Architect of GreyNoise Intelligence (@GreyNoiseIO)
Is Now on VT! @Now_on_VT
4K Followers 832 Following Stay ahead of cyber threats. Get real-time alerts on notable APT/FIN/ORB indicators from VirusTotal. A threat intel project by @craiu.
wallfacer @simplylurking2
1K Followers 1K Following
Jan 'Duchy' Neduchal @DuchyRE
3K Followers 766 Following Stuff at @sentinelone. Ex @vxunderground staff. Opinions are my own and not of my employer.
3xp0rt @3xp0rtblog
16K Followers 170 Following Malware and cybercrime | Cyber Threat Intelligence Analyst at @PRODAFT https://t.co/FMGOkGnMR8
Boschko @olivier_boschko
4K Followers 2K Following just a french canadien | ai red team @HiddenLayerSec | research @pwnoio | CISSP BSCP CRTL CRTO OSCP eWPTX eCPPT
Andrea P @decoder_it
9K Followers 320 Following Security Consultant @semperistech . Independent Security Researcher. Cyclist & Scubadiver. MSRC MVR 2022. "So di non sapere"
Octoberfest7 @Octoberfest73
9K Followers 190 Following Red Team | Offensive Tool Dev | 2x Course Author @ Zero-Point Security
The DFIR Report @TheDFIRReport
67K Followers 0 Following Real Intrusions by Real Attackers, the Truth Behind the Intrusion
Andrew Thompson @ImposeCost
41K Followers 2K Following Posts are attributable to me—not my employer. Former @USMC. Former @Mandiant. Current @GoogleYou might like
