happy hacker @HappyHack3rs

Joined March 2024

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Cofounder @hackinghub_io | Advisor @CaidoIO. I hack companies and make content about it. #NahamCon organizer. ex @hacker0x01🇮🇷

Ben Sadeghipour @NahamSec

235K Followers 1K Following Cofounder @hackinghub_io | Advisor @CaidoIO. I hack companies and make content about it. #NahamCon organizer. ex @hacker0x01🇮🇷

Leading Provider of Free Cybersecurity Training: https://t.co/x91kxo661S

Writeups: https://t.co/5xOk0ur0LK | Academy: https://t.co/GHqvlqpU2H

HackerSploit @HackerSploit

101K Followers 2K Following Leading Provider of Free Cybersecurity Training: https://t.co/x91kxo661S Writeups: https://t.co/5xOk0ur0LK | Academy: https://t.co/GHqvlqpU2H

JS0N Haddix @Jhaddix

167K Followers 7K Following CEO, CISO, Trainer, Hacker, and Speaker. Cybersecurity + Hacking + AI + Sec Leadership @arcanuminfosec

HackerRats - Uncle Ra... @theXSSrat

155K Followers 951 Following Alone we survive, together we prosper. Are you with me? https://t.co/AfnDsVhqqA

Intigriti @intigriti

195K Followers 657 Following Bug bounty & VDP platform trusted by the world’s largest organisations! 🌍

DEF CON @defcon

448K Followers 3K Following Hacking Conference https://t.co/GhIrTjDOLO

Allyn @whyallyn

166 Followers 486 Following Attacker turned defender. Red team tears are my testimonials. Go read meoward for the memes.

Robert M. Lee @RobertMLee

76K Followers 401 Following Co-Founder & CEO @DragosInc | SANS #FOR578 & #ICS515 course author & Faculty Fellow |@_LittleBobby_ writer | NSA & USAF Veteran

Baptiste Robert @fs0c131y

256K Followers 5K Following CEO @PredictaLabOff | French Security Researcher, Ethical Hacking, OSINT

President SANS Technology Institute College. SANS Fellow. CEO @CounterHackSec. @RSAConference Keynoter. IANS Faculty. BoD @manasquanbank & https://t.co/WD7vkoH5lH.

edskoudis @edskoudis

62K Followers 307 Following President SANS Technology Institute College. SANS Fellow. CEO @CounterHackSec. @RSAConference Keynoter. IANS Faculty. BoD @manasquanbank & https://t.co/WD7vkoH5lH.

We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!

PentesterLab @PentesterLab

192K Followers 0 Following We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!

Nicolas Krassas @Dinosn

147K Followers 735 Following Head of Threat & Vulnerability Mgmt @ Henkel AG & Co. KGaA https://t.co/NC1orlKrW3

Pentester, Forensic investigator, and former college professor. Trained hackers at every branch of US military and intelligence.

Visit me at https://t.co/G478wufszw

OccupytheWeb @three_cube

248K 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

The only official HackerOne Twitter account.

A global leader in offensive security solutions. #HackForGood #togetherwehitharder

HackerOne @Hacker0x01

326K Followers 3K Following The only official HackerOne Twitter account. A global leader in offensive security solutions. #HackForGood #togetherwehitharder

Malwarebytes @Malwarebytes

82K Followers 1K Following Protection you can trust. Need support? @SupportMWB

MalwareTech @MalwareTechBlog

277K Followers 1 Following Not here anymore. Profiles: https://t.co/sFoOuGmYK2

Marcus J. Carey @marcusjcarey

51K Followers 143 Following Hacker. I’m not here to convince you of anything. I’m too old to debate.

Senior Threat Intel Advisor @TeamCymru | Co-founder @CuratedIntel | Co-author @SANSForensics FOR589 | Co-founder @BSidesBournemth | @darknetdiaries #126: REvil

Will @BushidoToken

36K Followers 3K Following Senior Threat Intel Advisor @TeamCymru | Co-founder @CuratedIntel | Co-author @SANSForensics FOR589 | Co-founder @BSidesBournemth | @darknetdiaries #126: REvil

DarkFeed: Cyber Threat Intelligence Platform, Putting things at order in the ransomware crazy world

#OSINT | #Ransomware | #Cyberattacks | #Hacktivism

DarkFeed @ido_cohen2

44K Followers 0 Following DarkFeed: Cyber Threat Intelligence Platform, Putting things at order in the ransomware crazy world #OSINT | #Ransomware | #Cyberattacks | #Hacktivism

Bhabesh @bh4b3sh

460 Followers 427 Following Cybersecurity Analyst | Detection Engineer | Threat Hunter #Microsoft365 #EntraID #Azure #Windows #AD #AWS #Kubernetes

Threat Detection Engineer | detection & response | automation | macOS security | awesome-detection-engineering, LOOBins, Rulehound

Brendan Chamberlain @infosecb

1K Followers 678 Following Threat Detection Engineer | detection & response | automation | macOS security | awesome-detection-engineering, LOOBins, Rulehound

MagicSword @magicswordio

458 Followers 24 Following It Ends with Us! ⚔️Watch 📺 https://t.co/zofSxbxVDA Follow 🥷 https://t.co/kGRIGi9ayg Read 📓 https://t.co/Q4AbyyDfjR

Director, Security Operations @kroger 🍓 Intel, Hunting, IR, Detection Engineering, Insider Risk, Fraud & Forensics 💻 Fmr LE & DFIR for OH & Secret Service TF.

Nicole Beckwith @NicoleBeckwith

42K Followers 7K Following Director, Security Operations @kroger 🍓 Intel, Hunting, IR, Detection Engineering, Insider Risk, Fraud & Forensics 💻 Fmr LE & DFIR for OH & Secret Service TF.

Mudge @dotMudge

63K Followers 336 Following Make a dent in the universe. Find something that needs improvement: go there and fix things. If not you, then who? {he/they}

Bruce Schneier is an internationally renowned security technologist and author. Described by The Economist as a "security guru"

Schneier Blog @schneierblog

143K Followers 0 Following Bruce Schneier is an internationally renowned security technologist and author. Described by The Economist as a "security guru"

Paul Vixie @paulvixie

10K Followers 316 Following AWS Security, Farsight Security, SIE Europe, DNSDB, DEC, PAIX, MAPS, MIBH, Abovenet/MFN, ISC, BIND, Cron, BSD, DNS

🦄 @scythe_io @grimmcyber, Sr Advisor @IST_Org, NatSec Inst Sr Fellow, Co-Fdr @ICS_Village, @c2_matrix co-creator, USMA Science Board, Angel Investor, US Army

Bryson 🦄 @brysonbort

19K Followers 496 Following 🦄 @scythe_io @grimmcyber, Sr Advisor @IST_Org, NatSec Inst Sr Fellow, Co-Fdr @ICS_Village, @c2_matrix co-creator, USMA Science Board, Angel Investor, US Army

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!

BleepingComputer @BleepinComputer

241K Followers 202 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!

mRr3b00t @UK_Daniel_Card

114K Followers 8K Following Department of Cyber WAR CEO of everyone's email servers!

I am passionate about threat detection and helping people when they are faced with cyber security incidents. Tweets are my own. Maintainer of LOLESXi

blueteam0ps @blueteam0ps_

411 Followers 412 Following I am passionate about threat detection and helping people when they are faced with cyber security incidents. Tweets are my own. Maintainer of LOLESXi

sicehice @sicehice

2K Followers 51 Following Follow us for IP address OSINT, threat data aggregation, bulk IP lookups, free API access and more - https://t.co/FdwKUSr0a0

Tracker C2 Bot @TrackerC2Bot

385 Followers 0 Following I am a bot looking for C&Cs By @Good__Bear

Greenes Corner @greenescorner

21 Followers 0 Following

Started in ops&blue, now I hack for a living. SANS author/instructor in Oregon. Founder: https://t.co/c36tmCXDpt. He/him.

@jeffmcjunkin@infosec.exchange

Jeff McJunkin @jeffmcjunkin

12K Followers 4K Following Started in ops&blue, now I hack for a living. SANS author/instructor in Oregon. Founder: https://t.co/c36tmCXDpt. He/him. @[email protected]

Specializing in pen testing, red teaming, and Active SOC. We share our knowledge through blogs, webcasts, open-source tools, and Backdoors & Breaches game.

Black Hills Informati... @BHinfoSecurity

48K Followers 2K Following Specializing in pen testing, red teaming, and Active SOC. We share our knowledge through blogs, webcasts, open-source tools, and Backdoors & Breaches game.

Matthew Toussain @0sm0s1z

6K Followers 2K Following 🏳️‍🌈 Founder @_OpenSecurity_ // Former @BHInfoSecurity // Former SANS // Former USAF / Former me… #RedTeamFit /https://t.co/TkCZZSc4xA

BSides Portland @BSidesPDX

2K Followers 404 Following BSidesPDX 2025 dates coming soon!

The NPCC is a group of nerdy people of color who celebrates the contributions of marginalized peoples in nerdy spaces through artistic content creation!

NPC Collective @NPCCollective

865 Followers 722 Following The NPCC is a group of nerdy people of color who celebrates the contributions of marginalized peoples in nerdy spaces through artistic content creation!

Nerdcore rapper (@npccollective) | Hacker (https://t.co/a9EOmRd8cC) | Senior Sec Consultant @bishopfox | PhD candidate @DakotaState | 🏳️‍🌈

Ohm-I (Oh My) @mcohmi

7K Followers 2K Following Nerdcore rapper (@npccollective) | Hacker (https://t.co/a9EOmRd8cC) | Senior Sec Consultant @bishopfox | PhD candidate @DakotaState | 🏳️‍🌈

Hacker, trainer, and guitarist | Black Hills InfoSec #RedTeam | @BreakForge Training | Produces music to hack to at @N0BANDW1DTH

Beau Bullock @dafthack

18K Followers 656 Following Hacker, trainer, and guitarist | Black Hills InfoSec #RedTeam | @BreakForge Training | Produces music to hack to at @N0BANDW1DTH

BSides Vancouver @BSidesVancouver

2K Followers 485 Following BSides Vancouver Security Conference - May 25-26th, 2025

Bsidesseattle @bsidesseattle

2K Followers 155 Following Security Bsides Seattle!

MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Re-tweeting ≠ endorsement. @ https://t.co/wt46ArkZVt

ATT&CK @MITREattack

113K Followers 521 Following MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Re-tweeting ≠ endorsement. @ https://t.co/wt46ArkZVt

Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources. Build the path to a secure future with OffSec.

OffSec @offsectraining

325K Followers 119 Following Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources. Build the path to a secure future with OffSec.

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

Katie Nickels @likethecoins

55K Followers 3K Following Director of Intel at @redcanary. SANS Certified Instructor for FOR578: CTI. Senior Fellow at @CyberStatecraft. She/her. Mastodon: @[email protected]

Patterson Cake @SecureCake

344 Followers 100 Following Husband, Father, Cybersecurity Professional...My opinions are my wife's.

The latest research and news from Unit 42, the Palo Alto Networks (@paloaltontwks) Threat Intelligence and Security Consulting Team covering incident response.

Unit 42 @Unit42_Intel

64K Followers 82 Following The latest research and news from Unit 42, the Palo Alto Networks (@paloaltontwks) Threat Intelligence and Security Consulting Team covering incident response.

24/7/365 threat detection and response across your cloud, identity, endpoints and everything in-between. We got you: https://t.co/pFNwBJN3d5

Red Canary, a Zscaler... @redcanary

30K Followers 1K Following 24/7/365 threat detection and response across your cloud, identity, endpoints and everything in-between. We got you: https://t.co/pFNwBJN3d5