Glenn 📎 @NTKramer
Experienced InfoSec | Elder Millennial | 💼 @GreyNoiseIO | I ask 'why?' a lot | Pro Oxford Comma | Fix it! | He/Him | #BLM | Views are my own. @[email protected] Joined June 2009-
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We, @GreyNoiseIO, are seeing a massive uptick in IPs attempting to authenticate via telnet using one of several known backdoor accounts in FiberHome routers. viz.greynoise.io/tags/fiberhome…
Amazing
We (@GreyNoiseIO) covered today's CyberPanel RCE in mere hours, and hits were super quick, too. This is not surprising since it has already been used in ransomware. We'll add the CVE when we know it. viz.greynoise.io/tags/cyberpane…
Fleet adjusted, already spotted 🫡 viz.greynoise.io/tags/cyberpane…
Fleet adjusted, already spotted 🫡 viz.greynoise.io/tags/cyberpane… https://t.co/BgfShjSd8d
This is how we got the electoral college bc yall make terrible decisions.
Only 8 more days to finish your cyber awareness enlightenment.
🚨 This Thursday! 🚨 Join our CPO, Corey Bodzin for our Quarterly Roadmap Showcase! Get the latest on what we’ve built, what’s next, + how to stay ahead in threat intel. Don’t miss out—register now! 🔥 info.greynoise.io/webinar/quarte…
🎃 & #threatintel: We/GreyNoise have observed a significant increase in Fortinet SSL brute force attempts recently. This is the highest level in the past two months and the third highest of 2024. viz.greynoise.io/tags/fortinet-…
So what happened was

💻 Sherrod DeGrippo... @sherrod_im
36K Followers 7K Following Weird security voyeur. Vibe merchant. CISO of your 🩷 Official USPS fan account. 🎉 Host of THE Microsoft Threat Intelligence Podcast. I like crime actors.
mRr3b00t @UK_Daniel_Card
114K Followers 8K Following Department of Cyber WAR CEO of everyone's email servers!
Justin Elze @HackingLZ
65K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Caitlin Condon @catc0n
3K Followers 3K Following Adventurer. Takes a lot of photos, calls many places home. VP of research @VulnCheck. Former research director @Rapid7 / @metasploit. Opinions mine. She/her.
Dave Kennedy @HackingDave
224K Followers 6K Following Founder @Binary_Defense @TrustedSec Co-Owner https://t.co/HQC75WhdJh. @WeHackHealth Pod. God + Family/Hacker/CSO/USMC/Intel/Fitness. Make the world a better place.
Lina @d0rkph0enix
38K Followers 10K Following Infosec dork, boxer, poker player, dog owner/operator, spiller of things. Cars, vidya games, and cooking are my jam. #ChiefsKingdom and Royals fanatic. #SecKC
Andrew Morris (afk) @Andrew___Morris
21K Followers 3K Following 🔳 Internet listener. Founder/Chief Architect of GreyNoise Intelligence (@GreyNoiseIO)
GreyNoise @GreyNoiseIO
28K Followers 158 Following GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
corgi @corg_e
54K Followers 3K Following ssh'd into the espresso machine | (mostly) harmless pentester | president @bsidesnash | @defcon615 | chaotic neutral
Abigail Whidden @abigailwhidden
424 Followers 265 Following Sales at @greynoiseIO. Posts are few and far between, many involving my love for cheese.
jordyn childress @itsjordyn
381 Followers 288 Following professional @greynoiseio fangirl account // let all that you do be done in love
remy🐀 @_mattata
7K Followers 3K Following Dad, Vulnerability Research, Packet connoisseur. He/Him. Cyber Security Architect @GreyNoiseIO, DM's open. Top percentage Rattata. #cve #infosec #cybersecurity
Andrew Thompson @ImposeCost
39K Followers 1K Following Head of Global Signals Operations @Google Threat Intelligence Group via @Mandiant acquisition. Posts are attributable to me—not my employer. Former @USMC.
wvu @wvuuuuuuuuuuuuu
6K Followers 2K Following Sentient one-liner grepping the Internet for signs of intelligence. VulnCheck. Previously Atredis, Rapid7 vuln research, and Metasploit.
Andrew @AndrewAskins
3K Followers 588 Following Founder at https://t.co/pUMA4dJKQE Love hiking, robotics, food 📝 https://t.co/O0JbNLCnBf 🎙️ https://t.co/KZ5r8bpy0B 🦐 https://t.co/1Je3FSQrwV
Whitney Champion 🍪... @shortxstack
30K Followers 11K Following security architect / cofounder @Recon_InfoSec / cofounder @DDI_training / ♥️♥♥ == @eric_capuano, nerdery, rainbows, sweatpants | she/her 🤍🌿🍄🌈🫶
Stephen Fewer @stephenfewer
9K Followers 244 Following Senior Principal Security Researcher @rapid7. Specializing in software vulnerabilities and exploitation.
Rachel Tobac @RachelTobac
108K Followers 8K Following Friendly Hacker & CEO @SocialProofSec security awareness/social engineering prevention Training, Videos, Talks | 3X @DEFCON🥈| Board @WISPorg | Ex @CISAgov TAC
Lesley Carhart @hacks4pancakes
157K Followers 7K Following ICS DFIR @dragosinc, martial artist, marksman, humanist, Lvl14 Neutral Good rogue, USAF Ret. Tweet *very serious* things about infosec. Thoughts mine. They/them
Johnny @Luckyrocky2028
284 Followers 8K Following Stay Hungry, Stay Foolish. 只有自律的人才能得到真正的自由。|No Politics.
Kim Zetter @KimZetter
93K Followers 3K Following Journalist - cyber/national security. Author - COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon. https://t.co/334DzfSL1f
Eric Kapitanski @EricKapitanski
2K Followers 855 Following LightScope! Free, open source threat intelligence. https://t.co/FyXFVP7khj University of Southern California Information Sciences Institute.
KAP @The_Kapitan_ski
896 Followers 1K Following Leading the Kitty Adoption Program (KAP). Mentorship and more! Please check out https://t.co/qgFlIMKXBv for some of my cybersecurity research.
simon simonsen @ssimonsen0202
347 Followers 2K Following Without (log)data you’re just another person with an opinion. 4688+cmdLine, or it Did’nt happen. The IT Security guy @meethumio tweets are mine
Miguel Wunsch @miguel_wun97585
63 Followers 2K Following
M Vida @vm560405
5 Followers 413 Following
Danila @danilamotion
669 Followers 517 Following CG generalist. Created a team of cool guys who make cost 3D. UTC+3 #creativeagency #automotive #cinematics #animation #commercialvideo #motiondesign #3d
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0 Followers 24 Following
Sharon @brumfield_sharo
334 Followers 3K Following
IT GRC Forum @ITGRC
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Chester von Agner @vonagner
8 Followers 475 Following
ビズニャン🐈�... @rerupoga1981
401 Followers 454 Following 🌈【しあわせを感じられる”こころ”をつくろう✨】共働き育児で限界😨➡️メンター指導でメンタル改善💕 ほんの少し世界の捉え方を変えるだけで人生が変わる😊🌱 笑顔と優しさがあふれる世界を目指して🌈✨【毎日のワクワク】×【楽しいこと】×【メンタル改善】発信中✨ 日本酒大好き🍶😆💓
Jamie Levy🦉 @gleeda
10K Followers 6K Following @Volatility Core Dev | Art of Memory Forensics co-author | Director of Adversary Tactics @HuntressLabs | #DFIR enthusiast/trainer | [email protected]
Peter Schawacker @PeterSchawacker
1K Followers 8K Following Cyber Business Innovator & Strategist | CISO | AI | GRC & SOC | DFIR/TTX | SecOps | Drive Margin | Nearshoring | LATAM-USA | Emerging Markets | GTM Advisor
Cyilima @Cyilima1269161
2 Followers 109 Following
Matt @ImlerMatthew
100 Followers 1K Following rarely serious, often mediocre | something something infosec | posts and opinions my own | bsky: @mattimler.com | mastodon: @[email protected]
Andrey Rublev @AndreyR83425761
7 Followers 337 Following
KULI @QULIbot
375 Followers 4K Following Cybersecurity | Blogger | Entrepreneur | passionate about technology, venture capitalism, great memes. Always learning 📚 • he/him #infosec
Sam @SHolmes1998
123 Followers 493 Following Principal Security Analyst | CFC ⚽️ & Broncos Country 🐴 🏈 | Some KQL Stuff | Aspiring Detection Engineer
Artur Marzano @MacmodSec
526 Followers 583 Following CyberSecurity Analyst, Computer Scientist & Programmer
tonghuaroot @tonghuaroot
452 Followers 3K Following Staff Security Engineer. Cyber Security enthusiast, not Hacker. Focus on Application Security, Penetration testing. #OSCP #OSEP #RedTeam #AppSec #WebSec
Steecio @SteeciooPgUu4
26 Followers 643 Following
HD Moore @hdmoore
87K Followers 508 Following Founder & CEO of runZero (@runZeroInc), previously the founder and lead developer of Metasploit, a CSO, a consultant, and the head of various research teams.
deepInTheOcean @OceanDephts7
0 Followers 98 Following
Jack Thomson @jackrsthomson
115 Followers 693 Following Recording, Sound Design and Audio Implementation for Video Games. He/Him https://t.co/9pYGxDdTfz
terrence @tstank
465 Followers 3K Following Father, Runner, Linux Admin, TurboNerd, USMC Veteran, Aspiring Security Pro.
Чорнокоте @blackcote
37 Followers 287 Following
CPHSecure 🇩🇰�... @CphSecure
700 Followers 3K Following infosec & SRM advisor. All things security, cyber, risk & Intel. FC Copenhagen, history & geopol geek #OSINT, #natsec #geopol #cyberintel [email protected]
castaway @castaway808
2 Followers 250 Following
Johanna @indispensable0
1K Followers 921 Following CRNA,CU. AWAYS follow the money!It’s not a vacation,it’s a lifestyle!NOSTR npub1q3plwcwq5n3k6x5ljhtt99329fxldulgayetvekuh2dkur3s67xshdhzh7
Roman Rathler @RRathler
18 Followers 199 Following cybersec, politics, society and looking into weird animal fails
Aleksandar Milenkoski @milenkowski
2K Followers 588 Following Threat Research | Threat Intelligence | PhD | European Commission Marie Curie Research Fellow 2011-2014 | Personal Profile | 🇩🇪
Chris Hanlon @ChrisHanlonCA
17K Followers 18K Following Security Engineer Google Security Hall of Fame Presenter & Workshop host at #BSidesLV and #DEFCON
💻 Sherrod DeGrippo... @sherrod_im
36K Followers 7K Following Weird security voyeur. Vibe merchant. CISO of your 🩷 Official USPS fan account. 🎉 Host of THE Microsoft Threat Intelligence Podcast. I like crime actors.
vx-underground @vxunderground
377K Followers 294 Following The largest collection of malware source code, samples, and papers on the internet. Password: infected
mRr3b00t @UK_Daniel_Card
114K Followers 8K Following Department of Cyber WAR CEO of everyone's email servers!
shenetworks @shenetworks
72K Followers 844 Following a menace • hacker • shenetworks @ TikTok & YouTube & Twitch. Co-Host of @breakingthepod. New episodes biweekly.
Justin Elze @HackingLZ
65K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
SwiftOnSecurity @SwiftOnSecurity
405K Followers 9K Following computer security person. former helpdesk.
gabsmashh @gabsmashh
108K Followers 3K Following security strategist | 2L JD Candidate | NYU alum | UMGC adjunct professor | USMC & USCG auxiliarist
Caitlin Condon @catc0n
3K Followers 3K Following Adventurer. Takes a lot of photos, calls many places home. VP of research @VulnCheck. Former research director @Rapid7 / @metasploit. Opinions mine. She/her.
Dave Kennedy @HackingDave
224K Followers 6K Following Founder @Binary_Defense @TrustedSec Co-Owner https://t.co/HQC75WhdJh. @WeHackHealth Pod. God + Family/Hacker/CSO/USMC/Intel/Fitness. Make the world a better place.
Lina @d0rkph0enix
38K Followers 10K Following Infosec dork, boxer, poker player, dog owner/operator, spiller of things. Cars, vidya games, and cooking are my jam. #ChiefsKingdom and Royals fanatic. #SecKC
Andrew Morris (afk) @Andrew___Morris
21K Followers 3K Following 🔳 Internet listener. Founder/Chief Architect of GreyNoise Intelligence (@GreyNoiseIO)
Robert Graham @ErrataRob
66K Followers 2K Following Created (BlackICE,IPS,sidejacking,masscan). Doing (blog,code,cyber-rights,Internet-scanning). Macrodata refiner.
GreyNoise @GreyNoiseIO
28K Followers 158 Following GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
corgi @corg_e
54K Followers 3K Following ssh'd into the espresso machine | (mostly) harmless pentester | president @bsidesnash | @defcon615 | chaotic neutral
InfoSecSherpa 🏔️ @InfoSecSherpa
51K Followers 4K Following #Librarian 📚 to #InfoSec 🤖 #Philly area hoagie mouth 🥨#Ginfosec 🍸 #Everton ⚽️ Your guide up a mountain of information! 🏔️ #GoBirds
Florian Roth ⚡️ @cyb3rops
207K 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
MalwareTech @MalwareTechBlog
277K Followers 1 Following Not here anymore. Profiles: https://t.co/sFoOuGmYK2
Abigail Whidden @abigailwhidden
424 Followers 265 Following Sales at @greynoiseIO. Posts are few and far between, many involving my love for cheese.
Josh Kamdjou @jkamdjou
2K Followers 893 Following Founder/CEO @sublime_sec @emailrepio. "Do what you will, make the world a better place."
bat 🦇 @mzbat
45K Followers 770 Following Principal Eng, Detection & Response Lead @DNAnexus | find me on 🦋 or infosec 🐘 same handle | security engineer | doing cool stuff | 🧛🏻♀️🦇
Hollie Hennessy @HollieHennessy
4K Followers 737 Following Lead Analyst covering IoT and OT Cybersecurity. London. Foodie. Classicist. Views are my own.
Eric Kapitanski @EricKapitanski
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Peter Schawacker @PeterSchawacker
1K Followers 8K Following Cyber Business Innovator & Strategist | CISO | AI | GRC & SOC | DFIR/TTX | SecOps | Drive Margin | Nearshoring | LATAM-USA | Emerging Markets | GTM Advisor
Jamie Levy🦉 @gleeda
10K Followers 6K Following @Volatility Core Dev | Art of Memory Forensics co-author | Director of Adversary Tactics @HuntressLabs | #DFIR enthusiast/trainer | [email protected]
Chocapikk 🤘🏻 @Chocapikk_
3K Followers 267 Following Exploit Dev. CVEs for fun 🇫🇷 Security Researcher & Software Developer @leak_ix ☁️ Views are my own 🧠
AJ Vicens @AJVicens
10K Followers 9K Following Cybersecurity correspondent @Reuters. Was @CyberScoopNews, @MotherJones, @UMKnightWallace Signal preferred: ajvicens.57 (more: https://t.co/VC3mfeOaua)
Courtney @Courtne65023766
15 Followers 6 Following
AndrewMohawk⁽ⁿᵘ... @AndrewMohawk
4K Followers 3K Following Sec/Madness @privy_io principal security , @_seal_org technical council prev: HoS @uniswap, D&R/IR @RobinhoodApp, IR @BitMEX, Built @Paterva Maltego with RT
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7K Followers 777 Following Threat Research Lead @SentinelOne, Advisor with @ValidinLLC
Alex Matrosov @matrosov
19K Followers 2K Following 🔬Founder & CEO @Binarly_io, #codeXplorer, #efiXplorer, @REhints and "Rootkits and Bootkits" book. Previously worked at Nvidia, Cylance, Intel, ESET, Yandex.
Martin Wendiggensen @Dr_Machinavelli
308 Followers 409 Following PhD candidate @alperovitch; MAIR @SAISHopkins ; trying my luck with Statecraft AI (https://t.co/rEzb3PuGaN); formerly @MZESUniMannheim & @NATO
InfoSecProf @_John_Doyle
2K Followers 939 Following Cyber threat intelligence | Mandiant | SANS FOR578 instructor | Member of @curatedintelligence | Arcane Trickster | Ex-CIA | Posts represent my personal views
Chi-en (Ashley) Shen ... @ashl3y_shen
4K Followers 1K Following Security researcher @TalosSecurity / Ex-Google TAG / Black Hat USA & HITCON Review Board / Organizer of @rhacklette41. My tweets are my own opinion.
The Alperovitch Insti... @alperovitch
3K Followers 84 Following The Alperovitch Institute for Cybersecurity Studies @SAISHopkins.
Elly Rostoum @EllyRostoum
5K Followers 2K Following #CFIUS #FDI #NatSec #MENA #China #Tech 👀 | 👩🏻🏫 📚✍️ | ⚽️🏀🎾 X account = bibliography for my students ☕: https://t.co/m2HZZMgcbm
UNTCyberSecurityClub @UNT_CSC
375 Followers 71 Following 📸 — https://t.co/ivD1rvT7lV 👾 — https://t.co/rR0ZXsQmMi Meetings held every Thursday 4:00PM-6:00PM in NTDP-F285
Ron Rosano, #Galactic... @ronrosano
1K Followers 387 Following 668th human in space with @VirginGalactic #Galactic04 Oct 2023, going later w/ @BlueOrigin; @NASA Solar System Ambassador, astronomy educator since 1995.
Ryan Naraine @ryanaraine
28K Followers 838 Following 🎧 Three Buddy Problem: https://t.co/ZGEyqy2h7g. ✍🏼 Writing: @securityweek 🗣️ Conference: @labscon_io
DistrictCon @DistrictCon
1K Followers 29 Following A new DC hacker conference: Bringing together builders, breakers, and fixers to do cool shit. 🪩 Year 1: January 24-25, 2026 🪩 https://t.co/qYKu4hl0Uj
J⩜⃝mie Williams @jamieantisocial
10K Followers 7K Following threats && stuff || #UNC1799 forever 🤘|| @DistrictHeather ♥️ + 🍷 **𝚅𝚒𝚎𝚠𝚜 𝚎𝚡𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚊𝚛𝚎 𝚖𝚈 օ𝚠𝚗**
Amitai Cohen 🎗️�... @AmitaiCo
2K Followers 634 Following ✦ researching threats @wiz_io 🐞 maintaining vulns @cloudvulndb 🎙️ casting pods @ https://t.co/9Jsah9BjbO
Nathan Swift @SwiftSolves
651 Followers 2K Following Somewhere between last GenX and first Millennial. Living in the Azure Cloud.
crudd (@crudd@hackers... @crudd_re
547 Followers 2K Following Reverse Engineering and Malware Analysis https://t.co/zDWbKMgAqz https://t.co/3JZj2obRH8
cabal @cabalcx
565 Followers 208 Following hacker collective fighting tech-enabled abuse. ended 2025-01-01. read: https://t.co/L0MGbPq6az staff: @NYTASKFORCE curators: Museum of Modern Malware @defcon
Tim Walz @Tim_Walz
1.2M Followers 2K Following Dad, husband, teacher, coach, veteran. 41st Governor of Minnesota. Official account: @GovTimWalz
Sarah @heyaimsarah
16K Followers 632 Following tweets are my own and are not my employer || former @ okwildlifedept || current a bunch of other people
LABScon 2025 @labscon_io
2K Followers 979 Following Agenda: https://t.co/iP4vNvCl9I Speakers: https://t.co/kLR0P3APZt Code of conduct: https://t.co/PcVjNbORRm
CYBERWARCON @CYBERWARCON
6K Followers 568 Following #CYBERWARCON 2025 Registration and CFP are now open | 📧 Subscribe to receive updates at https://t.co/5lb0WvK6MJ
Jono @katechondic
587 Followers 617 Following #malwareanalysis and an all round fun person x; views are not that of my employer. Not on Twitter xx
ƘȺƞfrƹ @k4nfr3
240 Followers 349 Following Security Engineer. Mix a bit of blue and a bit of red and you get some Purple. Opinions are my own.
RJ Scaringe @RJScaringe
106K Followers 38 Following Founder & CEO of @Rivian. Working to keep the world adventurous forever.
David Maynor @Dave_Maynor
14K Followers 6K Following No tree, it is said, can grow to heaven, unless it’s roots reach down to hell. Offensive Security, AI LLM Ops, hardware hacking
watchTowr @watchtowrcyber
9K Followers 14 Following watchTowr enables organizations to get ahead of in-the-wild exploitation with Preemptive Exposure Management technology.
Unit 42 @Unit42_Intel
64K Followers 81 Following The latest research and news from Unit 42, the Palo Alto Networks (@paloaltontwks) Threat Intelligence and Security Consulting Team covering incident response.
Shodan @shodanhq
109K Followers 2 Following Monitor your external network, search the Internet of Things and perform empirical market research. You can also find us on https://t.co/nPLFbFy8R5
Sam Gannon @SamGannon87
16K Followers 2K Following Sports host/reporter for KDFW Fox 4. “Do it with passion or not at all.” Insta: Sportsgal87 UConn grad - GO HUSKIES