Lucas Kossack @lucaskossack
Red Team @Mandiant. Court jester for @defcon615 and @therealnashsec. I only break things with a signed contract. Tweets are my own. Joined April 2012-
Tweets992
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Following595
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I feel like people who play TFT have never played or seen how long the patch cycle is in any other game, imagine getting a patch 48 hours after set release and still complaining about it taking too long lmao
I feel like people who play TFT have never played or seen how long the patch cycle is in any other game, imagine getting a patch 48 hours after set release and still complaining about it taking too long lmao
Hint #2 The beers are free, the #Defcon friends priceless. Come meet up with @defcon615 folks! We're here it till it's gone 🍻 #Defcon31
Hint #1 Find us, join us, make friends, have drinks. #DEFCON31
If you missed or were unable to attend the @defcon workshop in @RedTeamVillage_? You can access all the material here. github.com/VirtualAlllocE… Yesterday's workshop was a cool experience and the feedback from the participants about the material, the presentation style and the…
The open source models arena I try not to post too much about open models until we reach a point where there will no longer be any debate about if they are at the level of closed models. So let's make it brief. ---- LLaMA 2 The open models arena heated up last week with the…
Good article. This is a large issue that I often catch in penetration tests. It’s also a teams default. 👇 Advisory: IDOR in Microsoft Teams Allows for External Tenants to Introduce Malware | JUMPSEC LABS labs.jumpsec.com/advisory-idor-…
Whoever the f did this needs to be forced to watch baby shark on repeat in an IMAX theater while tied to the chair, repeatedly hit with a wet pool noodle, and have the lights rapidly pulse in various rainbow shades while every 2 minutes Barney the dinosaur is piped in.
ChatGPT for Offensive Security by @SANSOffensive #Infosec #ChatGPT #cyber #offensive drive.google.com/file/d/1AqnW8M…
@troyhunt They backed up *ALL* your mailboxes and they're only asking for $2,500? They're a Magic Quadrant challenger to Veeam
If there are any CISO's out there that consider solutions based on what you see on vendor floors please let me know before I pull tjhe plug on that strategy forever.
passive DNS, or as I call it kickin’ A (records) and takin’ names.
What's a handy reverse engineering trick that you think more people should know about?
Attacking Active Directory is so much more fun than maintaining Active Directory 😇
Vulnerability (CVE-2022-26503) in Veeam Agent for Microsoft Windows allows local privilege escalation. An attacker who successfully exploited this vulnerability could run arbitrary code with LOCAL SYSTEM privileges. #veeam veeam.com/kb4289
This was the world’s largest aircraft, AN-225 ‘Mriya’ (‘Dream’ in Ukrainian). Russia may have destroyed our ‘Mriya’. But they will never be able to destroy our dream of a strong, free and democratic European state. We shall prevail!

Justin Elze @HackingLZ
65K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Andrew Thompson @ImposeCost
39K Followers 1K Following Head of Research and Discovery (RAD) @Google Threat Intelligence Group via @Mandiant acquisition. Posts are attributable to me—not my employer. Former @USMC.
Nick Carr @ItsReallyNick
38K Followers 3K Following Tech Director / Threat Intelligence at Microsoft. Previously, Director of Incident Response & Intel Research at Mandiant. Former Chief Technical Analyst at CISA
Samir @SBousseaden
25K Followers 1K Following Detection Engineering | Elastic Security Mastodon: @[email protected]
Gigs @ Shmoo @Gigs_Security
2K Followers 725 Following not aspiring to be humble▪️ #AdvancedPractices🦅 ▪️Thoughts are my own ▪️She|Her|Gigs
Mandiant (part of Goo... @Mandiant
127K Followers 4K Following We’re determined to make organizations secure against cyber threats and confident in their readiness.
corgi @corg_e
53K Followers 3K Following ssh'd into the espresso machine | (mostly) harmless pentester | president @bsidesnash | @defcon615 | chaotic neutral
Ryan Tomcik @heferyzan
1K Followers 2K Following DE/TH @GoogleCloud @Mandiant Threat Defense | Google in the streets, Mandiant in the tweets | Thruntito ergo sum | Bsky: https://t.co/THP7ny8CgD
Ryan Campbell @sec_soup
2K Followers 964 Following Computer Archaeologist | Ancient Book Wyrm | Defense against the Dark Arts | #DFIR | #ThreatIntel
BSides Nashville @bsidesnash
3K Followers 623 Following BSides Nashville is back on May 10th, 2025! Your favorite affordable, community-driven infosec conference, in Music City.
Kellybelly @KellybellyE
1 Followers 52 Following
Jackie Singh 🦅 �... @HackingButLegal
87K Followers 7K Following Formerly @joebiden. I am not a lawyer, and this is not legal advice.
nanjin002 @nanjin00272827
21 Followers 4K Following
Graham Helton (too mu... @GrahamHelton3
11K Followers 593 Following senior red team engineer @snowflake | former grocery store bagger He/him :wq!
crawler_cookie_0 @crawler_cookie0
49 Followers 4K Following
lys @ly7ine
965 Followers 1K Following Freedom of Information for all people! // “Security professional” on the blue team // hacker // datahoarder // tea // account == NSFW // opinions != employer’s
Clutchisback1 @clutchisback1
280 Followers 191 Following https://t.co/J8NFOoMm2r (don't apostrophe me bro!)
Moe @PoSH_Father
84 Followers 615 Following I work in Cyber. The Nigerian prince in your emails is 100% trustworthy.
Luke Rhodes @elrhodeo
4 Followers 57 Following
Vxshellew @vxshellew
551 Followers 4K Following
Michael R @nahamike01
1K Followers 3K Following Threat (Adversary Infrastructure) Researcher | Python Development | Long-time Japan resident
xX_gU@Ng¥u_Xx @Guangyu1306
4 Followers 374 Following
General Judy @generaljudy00
3 Followers 234 Following
Katrina Manson @KatrinaManson
15K Followers 3K Following Bloomberg @Business covering cyber and national security. Stories: https://t.co/IMUKDDeT6u Previous stories: https://t.co/x1l1p2Q22s
Steve @defsecbuilder
226 Followers 567 Following InfoSec, Jiu Jitsu, BSidesSTL, opinions and posts are my own
Maybe: Taylor @ktklauber
191 Followers 150 Following
R3Z @R3Z2600
2K Followers 2K Following artist, he/him. "The future is already here – it's just not evenly distributed." -William Gibson
Graham "Murray" Donov... @GrahamMurrayDo1
1K Followers 5K Following college grad and seasoned IT expert looking to kill it in IT. Landed my second gig running a CI/CD platform for a large FI. 2014 IL handball champion
Simran S. Sakraney @SIEMmer_Down
81 Followers 190 Following Cyber Strategy Consultant @Mandiant | Speaker | Thought Leader | Author | Helping CISO’s sleep at night ☁️✨(All thoughts are my own)
G.N. @shirotw
69 Followers 378 Following Appear weak when you are strong, and strong when you are weak.
Kylie Lacer @kylie_lacer
0 Followers 97 Following
Noah Sarilla @Noah_Sarilla
23 Followers 1K Following
Bit Wrecker @BitWrecker
57 Followers 1K Following Security Researcher && Decentralization Enthusiast;
saul panders @saul_panders
119 Followers 176 Following math and security enthusiast. I like to take things apart - still learning how to put them back together. (he/him)
Hunter Morrow @GoodMorrow2021
8 Followers 137 Following
Bryce @bbryce995
114 Followers 953 Following VMI 2017 | Literally a Professional Googler | Retweets are not marriage proposals
aptit0x @aptit0x
10 Followers 33 Following
!TheDroidYou'reLookin... @ThedroidyouR
0 Followers 57 Following My opinions are those of Mark Muckerberger. Interested in Cybersecurity and Hypertophy.
Ronnie Salomonsen bsk... @r0ns3n
1K Followers 3K Following Adversary Methods - Research & Discovery (RAD) Team @Mandiant - Now Part of @GoogleCloud. Former DFIR, Malware & Network Analyst. All tweets are my own.
nkx @nek0x_
247 Followers 1K Following “𝘈𝘯𝘺 𝘧𝘰𝘰𝘭 𝘤𝘢𝘯 𝘮𝘢𝘬𝘦 𝘴𝘰𝘮𝘦𝘵𝘩𝘪𝘯𝘨 𝘤𝘰𝘮𝘱𝘭𝘪𝘤𝘢𝘵𝘦𝘥. 𝘐𝘵 𝘵𝘢𝘬𝘦𝘴 𝘢 𝘨𝘦𝘯𝘪𝘶𝘴 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘪𝘵 𝘴𝘪𝘮𝘱𝘭𝘦.”
THE H4unt3d Hacker (o... @H4unt3dH
690 Followers 327 Following Haunted Hacker is a podcast we started this year. Its based on my experiences with manipulating systems, networks, websites etc. I have a background in SIGINT.
Chris Sistrunk @chrissistrunk
10K Followers 4K Following Husband, Dad, ⚡EE⚡, Technical Leader @Mandiant ICS/OT, @BEERISAC #002, @BSidesJackson, @LaTech Alum, bbq engr, weirdo, klugemeister, #sockstatus #DJaaS, FSD
Prev: DC615 @defcon615
2K Followers 282 Following
Emo4tet @followsec01
18 Followers 944 Following
Paige Godvin @paigehacks
589 Followers 485 Following IR consultant @Mandiant - woman in tech (she/her/hers) 🏳️🌈
Cheese 'N Rice Supers... @JayoHeyo
7 Followers 61 Following
APT AF @apt_af
2 Followers 418 Following
JusGotKlipped @JusGotKlipped
27 Followers 455 Following
Andrew H. Johnston @AHJohnston
110 Followers 154 Following Sr. Security Engineer @Google. Co-Founder @recluselabs, Adjunct Prof @FordhamGSAS. Cybersecurity and AI geek. Opinions are my own
Paul Masek @paulmasek... @paul_masek
696 Followers 1K Following IT Recruitment Consultant. @BSidesFortWayne Co-founder. GSEC & GIAC Advisory Board. #detectionengineering & #threathunting fan.
vx-underground @vxunderground
368K Followers 291 Following The largest collection of malware source code, samples, and papers on the internet. Password: infected
Justin Elze @HackingLZ
65K Followers 5K Following CTO @TrustedSec | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Andrew Thompson @ImposeCost
39K Followers 1K Following Head of Research and Discovery (RAD) @Google Threat Intelligence Group via @Mandiant acquisition. Posts are attributable to me—not my employer. Former @USMC.
Florian Roth ⚡️ @cyb3rops
206K 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
Nick Carr @ItsReallyNick
38K Followers 3K Following Tech Director / Threat Intelligence at Microsoft. Previously, Director of Incident Response & Intel Research at Mandiant. Former Chief Technical Analyst at CISA
Mike Felch (Stay Read... @ustayready
16K Followers 2K Following Targeted Ops Red Team @ TrustedSec | Hacking since Renegade BBS backdoors | Prior CrowdStrike/BHIS | In Christ's grip | I speak for myself only | K1HAQ
Vincent Yiu @vysecurity
29K Followers 316 Following Director, Red Team, Offensive Security. Help organizations safeguard their businesses from the bad guys.
Austin Baker @BakedSec
2K Followers 267 Following IR at LinkedIn | focused on the intersection of data science, engineering, and cybersecurity | Scooping up APT and bopping them on the head | opinions my own
Dave Kennedy @HackingDave
223K 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.
Aaron Stephens @x04steve
3K Followers 524 Following
b33f | 🇺🇦✊ @FuzzySec
33K Followers 1K Following 意志 / Antiquarian @ IBM X-Force / t501 / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching @CalypsoLabs
Martin @cantcomputer
16K Followers 2K Following CSO @ TrustedSec | Music | Tattoos | H@x | Rad Memes
SwiftOnSecurity @SwiftOnSecurity
405K Followers 9K Following computer security person. former helpdesk.
Oddvar Moe @Oddvarmoe
19K Followers 1K Following Red Teamer @TrustedSec | MS MVP | Speaker | Security Researcher | Blogger | Total n00b & always learning | UNC1194 | Tinkerer | Gamer I try to inspire!
Marcello @byt3bl33d3r
30K Followers 562 Following CyBeRsEcUrItY | Not afraid to put down with some THICC malware on disk | securing and breaking AI @PaloAltoNtwks | Ex @spacex
Ellie @canadian_rust
1K Followers 133 Following i like cars and stuff, idk. Firm believer that any vehicle can be fixed with the application of a MIG welder. Ellie, she/her | wife of the wonderful @CrowMS
Christine @CrowMS
218 Followers 822 Following 32 | Photographer, I guess! | Repairing a 1982 RX7 FB in my spare time |❤️ @canadian_rust
BSides Nashville @bsidesnash
3K Followers 623 Following BSides Nashville is back on May 10th, 2025! Your favorite affordable, community-driven infosec conference, in Music City.
DefCon Darknet @DCDarknet
6K Followers 2K Following
Graham Helton (too mu... @GrahamHelton3
11K Followers 593 Following senior red team engineer @snowflake | former grocery store bagger He/him :wq!
Second Wind @SecondWindGroup
22K Followers 22 Following We're also on Bluesky! https://t.co/vNi09wF2zZ From the former team at The Escapist, we're rising from the ashes at Second Wind.
Skytalks @dcskytalks
7K Followers 146 Following A ‘sub-conference’ that gives a unique platform for researchers to share their research, for angry hackers to rant about issues in the industry off-the-record
EvilMog® @mog.evil.a... @Evil_Mog
17K Followers 2K Following Hacker, Team Hashcat, Bishop of the Church of Wifi, Uber Badge Collector. Views != Employers. Not a Ph.D, Recycled Memes,
alt_bier @alt_bier
2K Followers 475 Following DFW area Brew Master and Network Aficionado. Mastodon https://t.co/xI7Zkk5g4G Projects https://t.co/TmeGFShUrc
Tim @NullOverflow
528 Followers 2K Following Hack. Break stuff. Cigars. Shoot. Planes. Ham Radio. Helldesk. Getting into INFOSEC. #firstworldproblemresolutionspecialist
Greven @Greven320
74 Followers 75 Following
BlizzyBlake278 @BlizzyBlake278
549 Followers 858 Following Cybersecurity IAM| Dev stuff | Analog Gaming IRL (BoardGames, RPGs, CCGs) 🖱🎲🕹
Alchemmer @QuarterStories
27 Followers 125 Following Security Engineer 'When you have eliminated the impossible, whatever remains, however improbable, must be the truth.' SH ACD
lys @ly7ine
965 Followers 1K Following Freedom of Information for all people! // “Security professional” on the blue team // hacker // datahoarder // tea // account == NSFW // opinions != employer’s
DCCoolerCon @DCCoolerCon
72 Followers 14 Following Empty The Cooler Con. A preafterparty party after closing ceremonies, you find us you get drinks and make friends. Simple stuff. Brought to you by DC615
Biohacking Village �... @DC_BHV
7K Followers 2K Following Bringing biology to the world's largest hacker conference! 🩻🧑🏾🔬🧪🧬⚗️ https://t.co/yrESJC0PpE…
Riot Mort @Mortdog
215K Followers 121 Following Opinions are mine alone. Currently a Senior Game Design Director at Riot Games & Lead Designer of Teamfight Tactics.
DHH @dhh
555K Followers 132 Following Father of three, Creator of Ruby on Rails + Omarchy, Co-owner & CTO of 37signals, Shopify director, NYT best-selling author, and Le Mans 24h class-winner.
Terrible Maps @TerribleMaps
1.7M Followers 1K Following The home of terrible maps with a pinch of humour [email protected]
Elon Musk Networth Bo... @MuskNetworth
507 Followers 10 Following I post Elon's Networth everyday Source: https://t.co/8FmbcZCGon
Maybe: Taylor @ktklauber
191 Followers 150 Following
R3Z @R3Z2600
2K Followers 2K Following artist, he/him. "The future is already here – it's just not evenly distributed." -William Gibson
PINE64 @thepine64
42K Followers 273 Following A community driven project offering Arm and RISC-V devices to FOSS enthusiasts worldwide. News Blog: https://t.co/GRYJQy7O0S Telegram News Channel: https://t.c
Simran S. Sakraney @SIEMmer_Down
81 Followers 190 Following Cyber Strategy Consultant @Mandiant | Speaker | Thought Leader | Author | Helping CISO’s sleep at night ☁️✨(All thoughts are my own)
saul panders @saul_panders
119 Followers 176 Following math and security enthusiast. I like to take things apart - still learning how to put them back together. (he/him)
Cthulhu ( ;,;) @Cthulhu_Answers
16K Followers 6K Following ( ;,;) 🌮 🐙 Amateur Astrobiologist, Gravitic Propulsion Engineer, Eldritch Historian, Antifa Commander, Defcon TentacleOps. #CoT
THE H4unt3d Hacker (o... @H4unt3dH
689 Followers 327 Following Haunted Hacker is a podcast we started this year. Its based on my experiences with manipulating systems, networks, websites etc. I have a background in SIGINT.
husky @ArcadeZMC
247 Followers 1K Following founder of @voremicro and i tried to break into my own car in a target parking lot once (they/she) | 💜 @uwueviee (all posts are mirrored from fediverse)
sysadafterdark @sysadafterdark
13K Followers 2K Following 💻 Bastard Operator From Hell | ❤️ @mandolinsara
cohost.org/iximeow �... @iximeow
6K Followers 555 Following made out of meat, but no nutritional value.
C Sto @C__Sto
632 Followers 459 Following Sarcastic wannabe hacker. Professional ‘I wonder what would happen if I’-er
Okayest Hacker @OkayestHacker
2K Followers 282 Following Trying not to be the next @BrianKrebs story. Came for the free threat intel, stayed for the InfoSec memes and hot takes. Views are my own. He/Him/His
_NSAKEY @_NSAKEY
440 Followers 143 Following I can neither confirm nor deny whether I open any hidden doors.
subparsec @sub_parsec
19 Followers 323 Following Red Team consultant at Mandiant/FireEye. My views and comments are my own and do not reflect my employer's view.
SadPanda @sadpanda_sec
293 Followers 639 Following #RedTeamer #MMAJunkie #CarGuy #F1... Opinions are my own.
corgi @corg_e
53K Followers 3K Following ssh'd into the espresso machine | (mostly) harmless pentester | president @bsidesnash | @defcon615 | chaotic neutral
heyjokim @heyjokim
93 Followers 84 Following
Brice @theonehiding
338 Followers 329 Following Semi-professional critic of everything. Generally interested in infosec and cryptography. Mastodon: @[email protected]
NashSevereWx @NashSevereWx
329K Followers 420 Following Community Supported Local Weather, Nashville & Williamson Co ° @NashvilleScene Readers' Poll Best Twitter Acct '14-'24 ° 2016 & 2022 NWA W. J. Bennett Award