xchg justin,justin @justinsteven
10x full-stack hacker. he/him. https://t.co/TLufkqriTG /dev/australia/mel Joined November 2007-
Tweets1K
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Tanto Security ❤️ @DownUnderCTF - and when they asked us if we could do a pentest of their new brand new CTF scoreboard we knew we had to say yes. With their permission we are proud to release the full pentest report today! 👇
It's blog post day! 🎉 Our email whisperer Ben Wilson has distilled his Outlook email spoofing journey from @BSidesCbr 2024 into a terrific post, walking you through the process of exploring niche email tricks that bypass anti-spoofing controls 👇
Talk Announcement: Sleepless Strings – Template Injection in Insomnia At BSidesCbr 2025 @marcioalm & @justinsteven will share their discovery of CVE-2025-1087 – a critical template injection in the Insomnia API client leading to remote code execution cfp.bsidescbr.com.au/bsides-canberr…
“What’s the worst that could happen?” In 2020, @justinsteven registered a legacy S3 bucket once owned by the Linux Vendor Firmware Service. He ended up between 100,000 Linux machines and their updates. Catch the full story at BSidesCbr2025 cfp.bsidescbr.com.au/bsides-canberr…
Today we're releasing Sleepless Strings. It's a blog post about a template injection bug in the Insomnia API client that leads to RCE in the latest version with just a few HTTP requests to a malicious server 💥
This week on Red Canary Office Hours, Justin Steven, Head of Threat Research at @TantoSecurity, joined the discussion to share his front-line perspective on privileged user attacks. 🕵️♂️ Learn how commonly used developer tools caught his attention, how they can be exploited, and…
Big ups to Team Tanto! 15th globally in the @hackthebox_eu Global Skills Benchmark CTF and number 1 in Oceania 😎 🚩
🥺👉👈
We're solemnly up to no good over on our Insta 😇 chuck us a follow if you want to watch Justin's descent into madness 👀
0xCC 2025 tickets are now available! 🎉✨ We're a free technical training conference by women, for women in or interested in cybersecurity. Date: 13-14 June Location: Melbourne Tickets: events.humanitix.com/0xcc-2025 Need help attending? We have a travel grant program! Website:…
Have you heard about our travel grant program? It aims to support students, those starting out, returning to work and other interested in cyber security but otherwise wouldn’t be able to attend 0xCC ✨ Applications just opened, NZ peeps welcome as well! docs.google.com/forms/d/e/1FAI…
Happy Friday! 0xCC is a free cyber security training conference by women, for women. 👩💻 Interested? We've just launched our site for 2025! 0xcc.sh Information about the training courses are on the website. Ticket release + travel grant program open next week. ✨…
Hot take: All the nyuk nyuk’ing about AI vibe coding is going to age as well as the “the cloud is just somebody else’s computer” stickers
𝔘𝔫𝔡𝔢𝔯 𝔗𝔥𝔢 ℜ𝔢𝔡 𝔐𝔬𝔬𝔫 🔴

Nathaniel @nnwakelam
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LiveOverflow 🔴 @LiveOverflow
155K Followers 1K Following wannabe hacker... he/him 🌱 grow your hacking skills @hextreeio
JS0N Haddix @Jhaddix
167K Followers 7K Following CEO, CISO, Trainer, Hacker, and Speaker. Cybersecurity + Hacking + AI + Sec Leadership @arcanuminfosec
shubs @infosec_au
56K Followers 2K Following Co-founder, security researcher. Building an attack surface management platform, @assetnote
Louis Nyffenegger @snyff
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Gareth Heyes \u2028 @garethheyes
37K Followers 1K Following JavaScript for hackers: Learn to think like a hacker. https://t.co/e0aNEbEDk5
bugcrowd @Bugcrowd
187K Followers 6K Following The leading provider of crowdsourced cybersecurity solutions purpose-built to secure the digitally connected world...Unleash Ingenuity™
brendan @bscarvell
2K Followers 629 Following I'm mnz. A security researcher, penetration tester and member of the @thegooniesctf team in Australia. No logs, no crime. PGP: 9F7D 181D 1F4A 51B2
Tuan Anh Nguyen⚡️... @haxor31337
15K Followers 2K Following 29 y/o Bug Bounty Hunter and Red Teamer at Viettel Cyber Security. Brand Ambassador @Hacker0x01 - Researcher Spotlight @Bugcrowd
hackerfantastic.x @hackerfantastic
104K Followers 5K Following Co-Founder @myhackerhouse & https://t.co/ouNFRET3hI. Cybersecurity & blockchain expert. Author of Hands-on Hacking (ISBN 9781119561453). Offensive Lua. #Web3
ᴉpᴉǝH 🐐💕 @summer__heidi
14K Followers 2K Following security! personal account. views are that of rustic australian countryside. nothing is an endorsement. why do you hate fun? for educational purposes only.
cje @caseyjohnellis
29K Followers 4K Following troublemaker & troubleshooter | founder @bugcrowd @disclose_io, board advisor, investor | pioneer of #bugbounty as-a-service | opinions CC0 1.0 | #hacktheplanet
Shanna Niggans 🦄 @fancy_4n6
4K Followers 2K Following Digital forensics & incident response #DFIR + #CTI | Horse and Dog mum | Co-host @ComfyConAU | CISO @OpSysAU | RB/SCP for @BlackHatEvents & @BSidesMelbourne
Md Ismail Šojal �... @0x0SojalSec
30K Followers 5K Following Cyber_Security_Re-searcher || 0SINT || Malware Analysis II Pwn || Ai Re-searcher || Project @AIStrikeSec || 0ld Accounts Suspended @0xSojalSec ||
Faith 🇧🇩🇦�... @farazsth98
4K Followers 318 Following Lead Cosmos Security Engineer @zellic_io, CTFer @SuperGuesser, Prev: Android Vulnerability Research @dfsec_com
john smith @HassaneZemzami
39 Followers 1K Following
SarahMond @767451t1w9k5k
30 Followers 1K Following
CX330.tw | Cyber Vamp... @CX330Blake
70 Followers 764 Following A Cyber Vampire because I'm only awake at night 🧛 A wannabe hacker 👾 Send me malware 🦠
Nayssaj @_Nayssaj
21 Followers 350 Following
Jorian @J0R1AN
2K Followers 359 Following Normalize being weird. (also here: https://t.co/cr9Y0kDEBi)
soutag @soutagx86
60 Followers 512 Following aaaaaaaaaaaaaaaaaabbbbbbbbv mostly websec blog : https://t.co/orahW4iR1r
Mukhtary @mukhtaraudu1
389 Followers 2K Following cybersecurity analyst || CompTia sec+ || Lifelong learner || Bug bounty || @cyblack Alumni
Mukhtar Ayomide @muktabudhar
3 Followers 98 Following
grub @GrubSec
0 Followers 423 Following
Vortex🌙 @v2rt3x
49 Followers 1K Following silly weeb swe 🍥 :: cybersec sparks 🍒 :: code challenger 🍣 :: digital art 🎨 :: pc cozy gamer 🎮 :: quiet terminal vibes 🌙 :: quiet whiskers 🐈
Peter @conformal111
186 Followers 2K Following
nuyo4h @nuyo4h
0 Followers 2K Following
Naman Devnani @naman_devnani
418 Followers 7K Following Security Researcher | Purple Team | Bug Hunter | CTF Player | Science & Tech Enthusiast | R&D | All-Source Intelligence | CAP | DCSP | TTIA | BCDE | COL
zak @zak5012
2 Followers 116 Following
Anita Ding @AnitaDing3
6 Followers 82 Following
audityourcontracts @AuditUrContract
209 Followers 937 Following FAFO with security on and off chain.
Sarah El-nagdy @sarahelnagdy
0 Followers 312 Following The most common way people give up their power is by thinking they don't have any
Andrew Horton @urbanadventur3r
262 Followers 218 Following
Ramiro Eremov @Ramir0Efrem0v
1 Followers 173 Following
🐸 𝕕𝕠 𝕞�... @DoMinhDuy7
125 Followers 649 Following it's essential to enjoy the journey and have fun along the way. That's why my motto is to "work hard, play hard" 😎.
batcave @1111Batcave
10 Followers 150 Following Burned out. Broke. Building. Burnout at the Batcave.
downbtn @downbtn_
112 Followers 3K Following en_US/kr_KR | aspiring mad scientist | ⚠️ i rt a lot of anime girls
Mason Schmidgall @spicydll
168 Followers 805 Following My tweets are provided WITHOUT ANY WARRANTY;... CTF Player @SquidProxyLovers / DSU ARL / DARC
Lochie Ashcroft @lochieashcroft
16 Followers 94 Following Computer Science Student, security, hardware, software
Elon @elon0fask
277 Followers 1K Following Live in 🇲🇦 (Python/Java) Software and DevSecOps Engineer with 4+ years of experience. work remotely from my room. Open-source contributer. Love C++/Assembly.
Glen Arrowsmith @garrows
1K Followers 641 Following InfoSec/CyberSecurity, Javascript/Node.js dev, system architect, roboticist, father.
R @Rujo_
2K Followers 3K Following Christian • Tech • Real Madrid • Infosec Truth tellers get run out the city.
motoko ayanami @AyanamiMotoko
39 Followers 196 Following
* @d3x7r
21 Followers 808 Following
RedGhost Hive @redghosthive
295 Followers 4K Following FSW 🌐| Exploring Cloud ☁️ & Cybersecurity | Future DevSecOps Pro 🚀 | Bug Bounty Hunter on the side hustle 🐞 | Building skills, breaking barriers.
Shinobyx @crypticrebel337
23 Followers 1K Following Bug bounty hunter who is a bit inactive on social media, so don't expect too much from me here...
Yuankui Lee @yuankui_lee
12 Followers 288 Following Currently trying to be a 2x full-stack developer.
Nathaniel @nnwakelam
41K Followers 919 Following
cts🌸 @gf_256
61K Followers 820 Following Co-founder and hacker @zellic_io & @pb_ctf | https://t.co/nlNai6iiMP | 24 Intern @egirl_capital slow to reply to DMs
shubs @infosec_au
56K Followers 2K Following Co-founder, security researcher. Building an attack surface management platform, @assetnote
Louis Nyffenegger @snyff
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bugcrowd @Bugcrowd
187K Followers 6K Following The leading provider of crowdsourced cybersecurity solutions purpose-built to secure the digitally connected world...Unleash Ingenuity™
James Kettle @albinowax
79K Followers 92 Following Director of Research at PortSwigger aka Burp Suite. Find my research, tools & contact details at https://t.co/vP6UbGmvl3
brendan @bscarvell
2K Followers 629 Following I'm mnz. A security researcher, penetration tester and member of the @thegooniesctf team in Australia. No logs, no crime. PGP: 9F7D 181D 1F4A 51B2
mdowd @mdowd
32K Followers 747 Following Internet Hacker. Founder of @vigilant_labs. Previously, co-founder of Azimuth Security (now L3Harris Trenchant)
thaddeus e. grugq @thegrugq
128K Followers 416 Following Hacker :: PhD researcher @warstudies @KingsCollegeLon :: [email protected] :: PGP https://t.co/dYipV8y3bo
PortSwigger Research @PortSwiggerRes
111K Followers 7 Following Web security research from the team at @PortSwigger
[email protected]... @0xdea
14K Followers 19 Following When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.
hackerfantastic.x @hackerfantastic
104K Followers 5K Following Co-Founder @myhackerhouse & https://t.co/ouNFRET3hI. Cybersecurity & blockchain expert. Author of Hands-on Hacking (ISBN 9781119561453). Offensive Lua. #Web3
ᴉpᴉǝH 🐐💕 @summer__heidi
14K Followers 2K Following security! personal account. views are that of rustic australian countryside. nothing is an endorsement. why do you hate fun? for educational purposes only.
cje @caseyjohnellis
29K Followers 4K Following troublemaker & troubleshooter | founder @bugcrowd @disclose_io, board advisor, investor | pioneer of #bugbounty as-a-service | opinions CC0 1.0 | #hacktheplanet
Faith 🇧🇩🇦�... @farazsth98
4K Followers 318 Following Lead Cosmos Security Engineer @zellic_io, CTFer @SuperGuesser, Prev: Android Vulnerability Research @dfsec_com
Halvar Flake @halvarflake
44K Followers 3K Following Choose disfavour where obedience does not bring honour. I do math. And was once asked by R. Morris Sr. : "For whom?" @[email protected]
UwU Underground @uwu_underground
10K Followers 155 Following 🐴Pwnie Award Winning & Nation State funded psyop featuring 6 AI Anime Waifus and a Pup™ singing about APTs, Grifters, & Snake Oil in InfoSec 🖤🩷💚💙💜🤍
Chubby♨️ @kimmonismus
84K Followers 2K Following Get my daily newsletter (230k+ readers) 📰: https://t.co/QaaY1wN9Tq // Mail 📧 » [email protected] «// 💻 @apples_jimmy 🍎 simp
OpenAI Developers @OpenAIDevs
222K Followers 1 Following Updates for developers building with the OpenAI Platform and API • Service status: https://t.co/kZwnwdYqOS • Support: https://t.co/qCi6M5ESZU
OpenAI @OpenAI
4.3M Followers 3 Following OpenAI’s mission is to ensure that artificial general intelligence benefits all of humanity. We’re hiring: https://t.co/dJGr6Lg202
Taylor Swift @taylorswift13
93.7M Followers 0 Following And, baby, that’s show business for you. New album The Life of a Showgirl. Out October 3 ❤️🔥
elttam @elttam
1K Followers 0 Following elttam is a globally recognised, independent information security company, renowned for our advanced technical security assessments.
Michael McKinnon @bigmac
2K Followers 3K Following Head of Security - #cybersecurity #hacking #crypto - #CISSP #CCSP instructor/mentor. Tweets my own.
Austin Larsen @AustinLarsen_
1K Followers 1K Following Principal Analyst @Google Threat Intelligence Group
Dr. Nicole LePera @Theholisticpsyc
1.0M Followers 322 Following Join my private healing community @selfhealerscirc 👇🏼
Mastering Burp Suite ... @MasteringBurp
16K Followers 0 Following Tips and tricks for Burp Suite Pro Managed by @Agarri_FR | Not affiliated with @Portswigger More free resources at https://t.co/MWqXmV66lr
ag @AlannahGuo
1K Followers 514 Following Some people don't think pen testing is a real job but have you seen my handwriting? ✨ Posts/silliness are my own 🤭 @AirglowSec | @0xCC
internet hall of fame @InternetH0F
3.9M Followers 413 Following the internet just wouldn't be the same without these iconic posts. credit ≠ endorsement
hashkitten @hash_kitten
2K Followers 174 Following vulnerability research @assetnote // hacking // codegolf // ctf with 🛹🐶
wint @dril
1.7M Followers 416 Following welcome to my shit https://t.co/SuXccfQtN7 https://t.co/kHbbE12Ftx https://t.co/uXYQZrfYdk
Moloch @LittleJoeTables
5K Followers 641 Following Offsec at OpenAI Formerly of @BishopFox https://t.co/YcsVLOe1EL https://t.co/z3UKx3VEBH
Risky Business® Medi... @riskydotbiz
2K Followers 4 Following The official account of Risky Business® Media, publishing cybersecurity podcasts and newsletters since 2007... Publisher/abuse: Patrick Gray (@riskybusiness)
Tanto Security @TantoSecurity
428 Followers 89 Following Tanto Security is a leading provider of advanced offensive cyber security services to leading organisations across Australia, New Zealand and North America.
uɐpʇou@ ✸ @notdan
21K Followers 3K Following genuinely flawed satire ه҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿҈̿ im U17r4H4rd(0r3 d00d
RyotaK @ryotkak
7K Followers 662 Following Security researcher? | Icon: @MelvilleTw | Private: @RyotaK_Private | Misskey: https://t.co/63E5Rpv2pk | Blog: https://t.co/c7NFQXhV90
BugBountyHQ @BugBountyHQ
24K Followers 95 Following
John Carmack @ID_AA_Carmack
1.1M Followers 273 Following AGI at Keen Technologies, former CTO Oculus VR, Founder Id Software and Armadillo Aerospace
William Bowling @vakz... @wcbowling
6K Followers 413 Following Security Engineer at @zellic_io, a.k.a vakzz when doing bug bounties and CTFs with @pb_ctf - https://t.co/9bjECLAwXg
ꙅɿɘƚɔɘqꙅ @_specters_
5K Followers 915 Following Steal whips and do kick flips 🇵🇷 Hacker & Skateboarder wannabe
Chaouki Bekrar @cBekrar
22K Followers 833 Following CEO of @Zerodium / Life is short, sell your 0-days to @Zerodium
DivaBytes777 @bytes777
162 Followers 64 Following This account moved to @outpostgray President of Outpost Gray, Author, Tech Blogger, Podcaster: Hackerz and Haecksen |LinkedIn: https://t.co/VhizdrHUDk
Michael Skelton @codingo_
44K Followers 751 Following VP of Operations @bugcrowd, Hacking Content @ https://t.co/Ov3ZXfNg5P tools @ https://t.co/4X3ot71JLf @SecTalks_GC & @BSidesGC co-organiser
Alex Ionescu @aionescu
47K Followers 2K Following Chief Technical Innovation Officer @crowdstrike. Windows Internals author and trainer. He/Him. RTs are not endorsements, opinions are my own.
j00ru//vx @j00ru
37K Followers 826 Following (Mostly) Windows hacker & vulnerability researcher. Google Project Zero. @DragonSectorCTF
Richard Johnson @richinseattle
18K Followers 3K Following Computer Security, Reverse Engineering, and Fuzzing; Training & Publications @ https://t.co/mloVP6rPB7; hacking the planet since 1995; Undercurrents BOFH
Catalin Cimpanu @campuscodi
107K Followers 2K Following Parked account. I don't usually post here on a regular basis. Cybersecurity reporter. Check me out on BlueSky and Mastodon.
Chris Wysopal @WeldPond
55K Followers 1K Following Hacker. Co-founder/CTO Veracode. Former L0pht security researcher. GenAI Auto-repair of vulns is the future @weld.bsky.social @[email protected]
Simpsons Against DevO... @SimpsonsOps
23K Followers 368 Following Simpsons Against DevOps | DMs Open | Send Memes | New memes posted once a day-ish 🦋 @simpsonsops.dev
Matt Nelson @enigma0x3
33K Followers 369 Following @specterops | Enjoys abusing features | https://t.co/aN1kcQxRJt
John Lambert @JohnLaTwC
43K Followers 800 Following Corporate Vice President, Security Fellow, Microsoft Security Research, johnla(AT)https://t.co/3dGtq71Nby
H McKelvie @mckelvie_h
672 Followers 2K Following Cyber Development Principal @Telstra. All views are my own.
Luke Jahnke @lukejahnke
3K Followers 6K Following
codecolorist@infosec.... @CodeColorist
5K Followers 1K Following
Filippo Valsorda @fil... @FiloSottile
46K Followers 1 Following Cryptogopher / Go crypto maintainer / @kateconger-knower / RC F'13, F2'17 / #BlackLivesMatter / he+him https://t.co/ZE4RtJ1xqD / https://t.co/qfth7zr00W / https://t.co/j1grpEm8uR
Baptiste Robert @fs0c131y
257K Followers 5K Following CEO @PredictaLabOff | French Security Researcher, Ethical Hacking, OSINT
Jack Rhysider 🏴... @JackRhysider
164K Followers 4K Following Creator of @DarknetDiaries. Tell me a good hacker story. 💻🔦⤵️🐰🕳️ Discord: https://t.co/qxanMuJ5X2