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ValidHorizon's profile picture. Thought Trailer, Cyber Threat Intel, DFIR, and influence operations. Blocked by a lot of terrible people. He/him ValidHorizon on the other site

Daniel Gordon

@ValidHorizon

Thought Trailer, Cyber Threat Intel, DFIR, and influence operations. Blocked by a lot of terrible people. He/him ValidHorizon on the other site

2KPosts 702Followers 276Following
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JohnHultquist's profile picture. Chief Analyst, Google Threat Intelligence Group. @CYBERWARCON and @SLEUTHCON founder. Johns Hopkins professor. Army vet.

John Hultquist

@JohnHultquist
likethecoins's profile picture. Director of Intel at @redcanary. SANS Certified Instructor for FOR578: CTI. Senior Fellow at @CyberStatecraft. She/her. Mastodon: @likethecoins@infosec.exchange

Katie Nickels

@likethecoins
jfslowik's profile picture. CTI, OT/ICS, DE&TH, and related infosec content. Oh, and memes. And shitposting. Lots of shitposting.

Joe Słowik 🌻

@jfslowik
KimZetter's profile picture. Journalist - cyber/national security. Author - COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon. https://t.co/334DzfSL1f

Kim Zetter

@KimZetter
klrgrz's profile picture. Christian. Killer Grizz, Threat Intel & Thrunter. Hack things w/ @bsides_nova. @DEFCON Contests Dept Lead & Black Badge DC32. GSE #344. (VIEWS ARE MY OWN).

Andy Piazza

@klrgrz
greglesnewich's profile picture. great, now I'm on twitter

Greg Lesnewich

@greglesnewich
BushidoToken's profile picture. Senior Threat Intel Advisor @TeamCymru | Co-founder @CuratedIntel | Co-author @SANSForensics FOR589 | Co-founder @BSidesBournemth | @darknetdiaries #126: REvil

Will

@BushidoToken
_JohnHammond's profile picture. Cybersecurity Researcher @HuntressLabs || Just Hacking Training @JustHackingHQ w/ @ethicalhacker || https://t.co/UtsNJiyiEk || https://t.co/narO3syzIy

John Hammond

@_JohnHammond
snlyngaas's profile picture. @CNN cybersecurity reporter | Tips: Signal 202-355-8471 or SNLyng.11 | sean.lyngaas@cnn.com | slyngaas@proton.me| @DukeU/@FletcherSchool alum | Proud Dad | @LFC

Sean Lyngaas

@snlyngaas
meansec's profile picture. A cyber hobo. Cycling the earth. Enjoys clicking too fast, long walks in the woods, & advocating. Hates printers. Co-Creator of the BOTS CTF, founder of SURGe

Ryan K

@meansec
campuscodi's profile picture. Cybersecurity reporter. Check me out on BlueSky and Mastodon.

Catalin Cimpanu

@campuscodi
jamieantisocial's profile picture. threats && stuff || #UNC1799 forever 🤘|| @DistrictHeather ♥️ + 🍷, ✌️🇺🇸➡️🇫🇷 **𝚅𝚒𝚎𝚠𝚜 𝚎𝚡𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚊𝚛𝚎 𝚖𝚈 օ𝚠𝚗**

J⩜⃝mie Williams

@jamieantisocial
uuallan's profile picture. Back The Press Guardian & The Clock:1942 https://t.co/liXLX2DeQ8

Allan “Ransomware Sommelier🍷” Liska

@uuallan
pmelson's profile picture. Author/Operator of @ScumBots. Blue Team by day, Blue Team by night. Opinions, typos, and bad grammar do not represent my employer. He/Him

Paul Melson

@pmelson
PJ47596176's profile picture. 🇨🇦whisky; cyber; natsec; Greater Toronto; innovation; girl dad.🌻.

🇨🇦PJ⌨🏋🏻‍♂️🥃🗺🌻🔭🔬🇨🇦🇦🇺🇬🇧🇳🇿🇺🇲👀

@PJ47596176
jaydinbas's profile picture. Reverse engineering, malware

Johann Aydinbas

@jaydinbas
RayRedacted's profile picture. Hacker, Researcher, Podcast Producer (Tribe of Hackers, Darknet Diaries). Proud dad of the fastest climber in the world. Ever. “Ut scandis, alios subleva”

Ray [REDACTED]

@RayRedacted
MrDanPerez's profile picture. 🇨🇳Mission TL @Google | #Malware Naming Wizard | #Attribution Connoisseur | All tweets are my own. #ThreatIntel #APT

Dan Perez

@MrDanPerez
BanjoCrashland's profile picture. Storyteller. Christian. Husband. Father. Author: I Am Whale Man. Black Hills InfoSec: Excitement Co-Creator. REKCAH! Comics: Co-Chief Creative Officer.

Jason Blanchard

@BanjoCrashland
UtdHephZy's profile picture.

HephZy

@UtdHephZy
BhfkmW2660's profile picture. If you’re going to be two-faced, at least make one of them pretty.

Florentina

@BhfkmW2660
CTI_Updates's profile picture. Updates about all things threat intelligence & updates about stuffs going on in the cybersec, OSINT, and hacking communities. #threatintel

CTI Updates

@CTI_Updates
Kritikaroy_26's profile picture. Sr. Threat Researcher @DCSO_de | Practice Fellow @Hertie_Security | Previously at #cybersecurity CoE at @IDSAindia #WomeninTech

Kritika Roy

@Kritikaroy_26
Fuxouc7047's profile picture. You can’t dim my light — I shine too bright.

Fuxouc

@Fuxouc7047
Hotcardigan's profile picture. Non-linear thinker, not always successful

Michael Aldridge

@Hotcardigan
KateGoesTech's profile picture. Londoner from Odesa ❤ Futurist, Politically Conservative, Proud Westerner. I Stand with Ukraine, as Truth & Creation always win over the Darkness & Destruction

Kate Levchuk

@KateGoesTech
KawaiiJongUwUn's profile picture. 🌟🇰🇵 Firewalls are cute, but "IT work" is cuter 🇰🇵🌟

Kawaii-Jong-UwUn

@KawaiiJongUwUn
D8c_au's profile picture. Bit of a nerd

D8c

@D8c_au
ShaneWhitestone's profile picture.

Shane Whitestone

@ShaneWhitestone
CheddarB0b42's profile picture. Three Laws compliant unhinged AI realist and Butlerian Jihad enthusiast. (read "Dune," "Hyperion," and Asimov) Personal account. Tweets represent cheese.🧀

Ched "cheddar" Wiggins

@CheddarB0b42
WinterAstrology's profile picture. They/Them 🔞 SW, World astrologer, Sex Astrologer Using both traditional western and Indian astro techniques. https://t.co/GHgdM0O0my for booking!

Wyn

@WinterAstrology
RadicalKjax's profile picture. 💍👩‍❤️‍💋‍👩🌻👩🏼‍💻🧘🏼‍♀️🏳️‍⚧️🔮✨🌕🐇| She/Her | weeb | nerd | goober | hack-a-doodler | smartest airhead | DⒶLL | https://t.co/Edx234I8sK - hiatus

Kali 🅅 🏳️‍⚧️🛠️

@RadicalKjax
bobgourley's profile picture. CTO at @OODA where we research and report on the future of disruptive tech cybersecurity and geopolitics. Author, Dragon Falls: https://t.co/hWygvsMfcL

Bob Gourley - e/acc

@bobgourley
CrockettLabs's profile picture.

Crockett

@CrockettLabs
s1lva_lucas's profile picture. Adversary Hunter @ Trend Micro | Opinions are my own

Lucas Silva

@s1lva_lucas
scarn_eth's profile picture. blueteam • sysowner • keyboardist • permaculture • doomposter • data

michael.scarn.eth

@scarn_eth
crypt0ca1tlyn's profile picture. Cyber Threat Intel @ Google | Web3 Security | Probably has 75+ blockscanner tabs open | Views own.

Caitlyn L.

@crypt0ca1tlyn
bigmetalpiston's profile picture. DFIR, Malware analysis & AI red teaming, what more could you ask for?

rip

@bigmetalpiston
jaredcatkinson's profile picture. | CTO @specterops | Host @dcpthepodcast | Ex PowerShell MVP | USAF Vet | FC Bayern Supporter | Language Learner 🇳🇴 🇮🇹 🇧🇷 |

Jared Atkinson

@jaredcatkinson
HimugLamuh's profile picture. wife guy. probably not part of lazarus group.

himug-lamuh

@HimugLamuh
gleeda's profile picture. @Volatility Core Dev | Art of Memory Forensics co-author | Director of Adversary Tactics @HuntressLabs | #DFIR enthusiast/trainer | gleeda@infosec.exchange

Jamie Levy🦉

@gleeda
CharlieVedaa's profile picture. blue team, GSE #112

ʇıq

@CharlieVedaa
aridjourney's profile picture. Threat research @HarfangLab. Opinions are my own.

aridjourney

@aridjourney
NB1r0's profile picture.

Norbert

@NB1r0
Stf_F's profile picture. Solutions Architect

Stf

@Stf_F
what_is_sos's profile picture. 🎖️State-Sponsored Threats Conference 🎉 AGENDA IS OUT! 🗓️ October 28, 2025 - Brussels, Belgium #what_is_sos

State of Statecraft Conference

@what_is_sos
TCraf7's profile picture. Lifelong learner, educator, USMC veteran, gamer, and gym junkie. -Tweets are my own.

TreyCraf7

@TCraf7
negisc_gepsi's profile picture. Núcleo de Estudos em Guerra Informacional e Segurança Cognitiva do @gepsiunb | @irelunb | @UnB_oficial Cognitive Security and Information Warfare Research Group

NEGISC

@negisc_gepsi
t7900_t's profile picture. Be safe from digital era Cyber security warrior

T.sidique

@t7900_t
DavidDick222535's profile picture. Single and Openly Gay versatile top, cut HIV negative, love kissing, cuddling. who enjoy life alone, friendships or LTR _Chicago is home 🏠

David Dick

@DavidDick222535
mittypk's profile picture. Frontline Intel Ops 🦅 Advanced Practices @Mandiant | AU Military DCO | My views are my own

Mathew

@mittypk
Annie726643's profile picture.

Annie

@Annie726643
itcpecredit's profile picture. Self-Study CPE Programs to help professionals acquire the skills, knowledge and certificates in IT and cybersecurity

IT CPE Academy

@itcpecredit
AbiodunMuj67059's profile picture. I am who I'm, don't play me stupid

Elizabeth

@AbiodunMuj67059
kai_null's profile picture. Lead Threat Researcher

Kai

@kai_null
Exodia6542's profile picture. 🖥️ Inzusiast and resercher | actively fighting cybercrime. 🪐

exlagsx

@Exodia6542
n0pex3's profile picture. Hi. I'm n0pex3!

n0pex3

@n0pex3
shariw087's profile picture. hi everyone

shari whyard

@shariw087
casper_4141's profile picture. look at me, im in ur threat model now

casper

@casper_4141
binha3t1's profile picture. funny

binha3t

@binha3t1
Departamen46733's profile picture.

Departament SIDE

@Departamen46733
ZanderMack16755's profile picture.

anonz

@ZanderMack16755
securitydumpstr's profile picture. 303: @ https://t.co/I4aYuNOKKY Life long snowboarder and opportunist threat hunter | my views are my own

security_dumpster

@securitydumpstr
chriscronbaugh's profile picture.

Chris Cronbaugh

@chriscronbaugh
eon_sec's profile picture. mostly lurking

Eon

@eon_sec
t4fteberg's profile picture.

t4fteberg

@t4fteberg
SwitHak's profile picture. French Security Analyst (Fmr TelcoSec) Cyber / Security / Geopolitics & and others. Personal Account, My opinion! Lang: ENglish & FRench

SwitHak (👁)

@SwitHak
valdra76's profile picture. Non voglio contribuire al rumore di fondo.

ALBIV⚡

@valdra76
JohnHultquist's profile picture. Chief Analyst, Google Threat Intelligence Group. @CYBERWARCON and @SLEUTHCON founder. Johns Hopkins professor. Army vet.

John Hultquist

@JohnHultquist
likethecoins's profile picture. Director of Intel at @redcanary. SANS Certified Instructor for FOR578: CTI. Senior Fellow at @CyberStatecraft. She/her. Mastodon: @likethecoins@infosec.exchange

Katie Nickels

@likethecoins
SwiftOnSecurity's profile picture. computer security person. former helpdesk.

SwiftOnSecurity

@SwiftOnSecurity
jfslowik's profile picture. CTI, OT/ICS, DE&TH, and related infosec content. Oh, and memes. And shitposting. Lots of shitposting.

Joe Słowik 🌻

@jfslowik
KimZetter's profile picture. Journalist - cyber/national security. Author - COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon. https://t.co/334DzfSL1f

Kim Zetter

@KimZetter
chrissanders88's profile picture. Ed.D. | Founder @networkdefense @RuralTechFund | Former @Mandiant, DoD | Author: Intrusion Detection Honeypots, Practical Packet Analysis, Applied NSM

Chris Sanders 🔎 🧠

@chrissanders88
juanandres_gs's profile picture. Senior Technical Fellow (Research & Innovation) @SentinelOne | Distinguished Fellow, @SAISHopkins Alperovitch | Founder @ LABScon | Buddy @ Three Buddy Problem

J. A. Guerrero-Saade

@juanandres_gs
greglesnewich's profile picture. great, now I'm on twitter

Greg Lesnewich

@greglesnewich
ItsReallyNick's profile picture. Tech Director / Threat Intelligence at Microsoft. Previously, Director of Incident Response & Intel Research at Mandiant. Former Chief Technical Analyst at CISA

Nick Carr

@ItsReallyNick
meansec's profile picture. A cyber hobo. Cycling the earth. Enjoys clicking too fast, long walks in the woods, & advocating. Hates printers. Co-Creator of the BOTS CTF, founder of SURGe

Ryan K

@meansec
campuscodi's profile picture. Cybersecurity reporter. Check me out on BlueSky and Mastodon.

Catalin Cimpanu

@campuscodi
jamieantisocial's profile picture. threats && stuff || #UNC1799 forever 🤘|| @DistrictHeather ♥️ + 🍷, ✌️🇺🇸➡️🇫🇷 **𝚅𝚒𝚎𝚠𝚜 𝚎𝚡𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚊𝚛𝚎 𝚖𝚈 օ𝚠𝚗**

J⩜⃝mie Williams

@jamieantisocial
uuallan's profile picture. Back The Press Guardian & The Clock:1942 https://t.co/liXLX2DeQ8

Allan “Ransomware Sommelier🍷” Liska

@uuallan
silascutler's profile picture. You may know me from your logs Research @Censysio Advisor #DEVSEC #Hacking #Cyber #CTI

Silas Cutler (p1nk)

@silascutler
DavidJBianco's profile picture. Threat Hunting, CTI, incident detection & response. SANS instructor. Special interest in helping newbies get started. He/Him. https://t.co/XcrBqQLUrP

David J. Bianco

@DavidJBianco
blackorbird's profile picture. Peace and Love. Just Analysis/Hunter/Youtuber/AiCoder/Entrepreneur/. #APT #threatIntelligence #Exploit #CTI #meme #cyber #hacker #OSINT #Ai Need Remote Job

blackorbird

@blackorbird
pmelson's profile picture. Author/Operator of @ScumBots. Blue Team by day, Blue Team by night. Opinions, typos, and bad grammar do not represent my employer. He/Him

Paul Melson

@pmelson
RidT's profile picture. Author of ACTIVE MEASURES, RISE OF THE MACHINES, CYBER WAR WILL NOT TAKE PLACE, "Attributing Cyber Attacks," more. Johns Hopkins, Alperovitch Institute.

Thomas Rid

@RidT
smoothimpact's profile picture. #threatintel and #dfir lead @ PwC. Blue team forever. Christian, husband, dad, coffee addict, bad photographer, awful cyclist. Tweets my own, not PwC's.

Kris McConkey

@smoothimpact
jaydinbas's profile picture. Reverse engineering, malware

Johann Aydinbas

@jaydinbas
BSidesPyongyang's profile picture. 🇰🇵 #BSidesPyongyang2025 : Nov 18 2025 (Missile Industry Day) @ Lazarus HQ Pyongyang & Live Stream | 30th anniversary 🎂 https://t.co/gb9sDPJC8X

BSides Pyongyang

@BSidesPyongyang
Thisism23567356's profile picture.

Hunter For Fun

@Thisism23567356
icebox33333's profile picture.

icebox33

@icebox33333
chriscronbaugh's profile picture.

Chris Cronbaugh

@chriscronbaugh
Bizarredect's profile picture. Grayish Hat Hacker

Bizarredect

@Bizarredect
JangPr0's profile picture.

JangPro

@JangPr0
byrne_emmy12099's profile picture. Butterfly Effect

Emmy Byrne

@byrne_emmy12099
Greg_Schloemer's profile picture. Threat Intel

Greg Schloemer

@Greg_Schloemer
StrikeReadyLabs's profile picture. https://t.co/F8gC7CgLWB

StrikeReady Labs

@StrikeReadyLabs
browsercookies's profile picture. Ex-Unit 350: Elite cookie ops. Perfect bake temp. No ties to Unit 8200.

Cookie Connoisseur

@browsercookies
asdasd13asbz's profile picture. n

hithere

@asdasd13asbz
AndresFreundTec's profile picture. FWD: @AndresFreundTec@mastodon.social FWD: https://t.co/DcPdStYfus Postgres developer, working at Microsoft. For politics: @AndresFreundPol

Andres Freund (Tech)

@AndresFreundTec
ThrustWR's profile picture. For occasional musings, maps, and my writings about Defense-related things now and then.

Zach 🇺🇦 (Archived)

@ThrustWR
curtw's profile picture. Exploring systems security since 1985. Malware+{cybercrime/espionage} analysis, threat intelligence + full-spectrum tech security research. Personal account.

Curt Wilson, human

@curtw
CYBERWARCON's profile picture. #CYBERWARCON 2025 Registration and CFP are now open | 📧 Subscribe to receive updates at https://t.co/5lb0WvK6MJ

CYBERWARCON

@CYBERWARCON
bellingcat's profile picture. Support our charity https://t.co/XMTKIEDiTB Buy our book: https://t.co/2JiuWFfTpO Follow us: https://t.co/LPUEQI8TdZ

Bellingcat

@bellingcat
paulisci's profile picture. Newspaper threads (I've written a book, The Press Gallery!), politics, fun, Headline of the Year, Dr. Cronk. Researcher at @UCalgary.

Paul Fairie

@paulisci
Haxo1ot1's profile picture. Chaotic good security analyst | CTI & OSINT | Wanna be threat hunter | They/them 🏳️‍🌈

Haxolotl 🌻

@Haxo1ot1
Iron_Man_Actual's profile picture. NatSec. Tech. China. Creator of Breaking Beijing. Author of EX SUPRA, the story of the world after Taiwan falls. Buy it here: https://t.co/0DGYVEpXqP?…

Tony Stark

@Iron_Man_Actual
AmitaiCo's profile picture. ✦ researching threats @wiz_io 🐞 maintaining vulns @cloudvulndb 🎙️ casting pods @ https://t.co/9Jsah9BjbO

Amitai Cohen 🎗️🤟

@AmitaiCo
tayvano_'s profile picture. dont believe their lies 🦊 💖🗡️

Tay 💖

@tayvano_
stephbrom's profile picture. i just RT security and other tings I find funny. 👨🏽‍💻 stephbrom@infosec.exchange

stephen

@stephbrom
Timele9527's profile picture. #健身#读书#搞钱

Timele12138

@Timele9527
TheDFIRReport's profile picture. Real Intrusions by Real Attackers, the Truth Behind the Intrusion.

The DFIR Report

@TheDFIRReport
MrTiepolo's profile picture. Cyber Security Researcher 👨🏼‍💻 | Cyber Threat Intelligence Lead @Accenture 🕵🏼‍♂️ | GCIH - GSOC - CHFI 🏆 | 🍷🍕🇮🇹

Gianluca Tiepolo

@MrTiepolo
thomas_0x47's profile picture. Threat Analyst @ Microsoft Threat Intelligence Center #MSTIC. Tweets and opinions my own

thomasg

@thomas_0x47
CBInTheHous3's profile picture. CTI / Infrastructure Hunting / Hunting Queries 🕵🏻‍♂️

CB

@CBInTheHous3
GonzoHacks's profile picture.

Thrunter S Thompson

@GonzoHacks
Volexity's profile picture. A security firm providing Incident Response, Proactive Threat Assessments, Trusted Advisory, and Threat Intelligence

Volexity

@Volexity
holden's profile picture. New book: Verified, from UChicago Nov 2023. Moved away to mikecaulfield . bluesky . social

Mike Caulfield

@holden
malmoeb's profile picture. Head of Investigations @InfoGuardAG https://t.co/A5lnFAu7eX

Stephan Berger

@malmoeb
G_Pinchevsky's profile picture. I study institutional responses to sexual and domestic violence; @UF alumni #AllHailFloridaHail; @goldenknights fan #VegasBorn

Gillian Pinchevsky

@G_Pinchevsky
BeckmanLyndsy's profile picture.

Lyndsy Beckman

@BeckmanLyndsy
cybersecdancer's profile picture. 🌸💖 Infosec Engineer | Tap Dancer | Masters in DFIR | Italian | Sec+ | CySA+|TikTok: infosecdany 💖🌸 | 📍 MA

Dany 🎀

@cybersecdancer
TheRedLazarus's profile picture.

John Lankau

@TheRedLazarus
TheDr1ver's profile picture. Baltimore-based Cyber Threat Intel Analyst | Opinions are my own

Nick Driver

@TheDr1ver
asfakian's profile picture. Tweets about Cyber Threat Intelligence | SANS #FOR578 Instructor | Speaker My tweets=my views. RTs ≠ endorsement. https://t.co/6zRhe2JRUj

Andreas Sfakianakis / @[email protected]

@asfakian
_John_Doyle's profile picture. Cyber threat intelligence | Mandiant | SANS FOR578 instructor | Member of @curatedintelligence | Arcane Trickster | Ex-CIA | Posts represent my personal views

InfoSecProf

@_John_Doyle
sixdub's profile picture. Microsoft Threat Intelligence | Student @ GMU Antonin Scalia Law School | USAFA '10 & USAF Veteran | Focus: Intelligence, Technology, Cyber Law, Leadership

Sixdub

@sixdub
JBurnsKoven's profile picture. CTI @Chainalysis | Former intel officer | Views are my own

J. Burns Koven

@JBurnsKoven
riskydotbiz's profile picture. The official account of Risky Business® Media, publishing cybersecurity podcasts and newsletters since 2007... Publisher/abuse: Patrick Gray (@riskybusiness)

Risky Business® Media

@riskydotbiz
lazarusholic's profile picture. a big fan of lazarus.

lazarusholic

@lazarusholic
AkshaySth's profile picture. Nihil timendum est! Opinions & views are solely my own

Akshay Suthar

@AkshaySth
_IanReynolds's profile picture. @ianreynolds.bsky.social :: Security Operating , Incident Responding, Forensicating head scratcher :: {pick-a-colour}-teamer :: SANS Instructor ::

Ian Reynolds

@_IanReynolds
QuinnyPig's profile picture. Cloud Economics and AWS shitposting, which are the same thing.

Corey Quinn

@QuinnyPig
briankrebs's profile picture. Independent investigative journalist. Author of 'Spam Nation,' a NYT bestseller. Former Washington Post reporter. Mastodon: https://t.co/fTKNavlMwp

briankrebs

@briankrebs

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