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Fotis Chantzis Profile
Fotis Chantzis

@ithilgore

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security engineering @OpenAI , creator of Ncrack (), lead author of , OSC(P|E), ex @mayoclinic .

San Francisco
Joined November 2009
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@ithilgore
Fotis Chantzis
4 years
It's time to announce a large-scale project I have been working on for the past 2 years with a team of security researchers @einstais @calderpwn @edeirme and @beauwoods - a book on "Practical IoT Hacking" to be released this September by @nostarch Press:
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@ithilgore
Fotis Chantzis
11 months
OpenAI is nothing without its people
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@ithilgore
Fotis Chantzis
4 years
A brief overview of how our new book "Practical IoT Hacking" () published by @nostarch came to be:
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@ithilgore
Fotis Chantzis
6 years
"Sometimes, hacking is just someone spending more time on something than anyone else might reasonably expect." @InfiltrateCon #infiltrate
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@ithilgore
Fotis Chantzis
6 years
Updated the #Ncrack RDP module to support all latest Windows versions and the more complicated version 5 of remote desktop (fastpath, fragmentation etc.) No other cracking tool supports this as of today. Try it at #Nmap @Nmap
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@ithilgore
Fotis Chantzis
6 years
After a gruesome, intense 48-hour exam and a detailed report spanning 101 (no joke) pages, I attained my #OSCE certificate by @offsectraining - highly recommended course!
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@ithilgore
Fotis Chantzis
11 months
❤️
@sama
Sam Altman
11 months
i love the openai team so much
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@ithilgore
Fotis Chantzis
7 years
- 56 lab systems - 360-page lab report - rigorous 24-hour hands-on exam - 70-page exam report OSCP acquired. Awesome job @offsectraining
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@ithilgore
Fotis Chantzis
4 years
We recently released a book on “Practical IoT Hacking”, a simple yet effective guide on how to attack (and as a result defend) the Internet of Things. The journey of writing a technical book was a long and arduous one, yet filled with valuable lessons:
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@ithilgore
Fotis Chantzis
5 years
Just published Ncrack release 0.7 with new modules: DICOM, MQTT, SMB2, CVS and an extended RDP module supporting all latest Windows versions! Also now ported to support OpenSSL 1.1. Get it at: #Nmap #Ncrack @Nmap #infosec
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@ithilgore
Fotis Chantzis
2 years
Book signing of "Practical IoT Hacking" with co-authors @calderpwn and @beauwoods - @nostarch booth @defcon
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@ithilgore
Fotis Chantzis
11 months
Feeling immensely proud to be part of the incredible team at @OpenAI 🚀 Thrilled to have @sama and @gdb back with us! Exciting times ahead! #OpenAI
@gdb
Greg Brockman
11 months
we are so back
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@ithilgore
Fotis Chantzis
7 years
Compilation of pen-test notes & tricks: #infosec #Pentesting #redteam #pentest
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@ithilgore
Fotis Chantzis
3 years
Author copies of Practical IoT Hacking arrived! () #iot @nostarch @Einstais @calderpwn @edeirme @beauwoods
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@ithilgore
Fotis Chantzis
6 years
Slides for our medical device security and CTF presentation at the biohacking village @DC_BHV @defcon
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@ithilgore
Fotis Chantzis
5 years
Here at the @defcon contest awards ceremony with Biohacking Village @DC_BHV CTF 2019 winner (murphLaw - team of 8 members) #defcon #defcon2019 #defcon27 . They had to deal with fierce competition of over 40 teams and over 40 challenges about medical devices and clinical systems.
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@ithilgore
Fotis Chantzis
5 years
New #Ncrack module for #MQTT done! To be uploaded soon at . Rate-limiting seems to be non-existent on the eclipse mosquitto broker (and I suppose most other MQTT software), so number of auth attempts per second is crazy high
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@ithilgore
Fotis Chantzis
5 years
No #mDNS poisoner out there was working like I wanted, so I ended up coding my own 🤷‍♂️ #IoTSecurity #infosec #Pentesting
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@ithilgore
Fotis Chantzis
5 years
This #Defcon was a blast! Many thanks to fellow engineer @DaniloNC (left) for co-hosting the biohacking village @DC_BHV CTF and @beauwoods (right) for leading (along with @headinthebooth ) the bio village org! -pic from contest awards ceremony @defcon #defcon27 #defcon2019 #medsec
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@ithilgore
Fotis Chantzis
6 years
Just received the email about my passing the 48-hour CTP / #OSCE exam (on my first try) by @offsectraining - this has been one of the most intense and challenging exams I have ever taken but well worth it : )
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@ithilgore
Fotis Chantzis
6 years
If you are in Vegas and want to talk about medical device security or @nmap / #Ncrack hit me up at #BSidesLV and #Defcon . Or just visit the biohacking village @DC_BHV and attend our presentation and CTF on assessing medical devices :)
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@ithilgore
Fotis Chantzis
6 years
Preparing the "Ncrack and Nmap NSE development for offense and defense" workshop @defcon China #nmap #ncrack
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@ithilgore
Fotis Chantzis
4 years
Quote from today's security podcast: "Practical IoT Hacking: a book that could really hurt someone" (it's 464 pages) @Infosecjen @beauwoods
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@ithilgore
Fotis Chantzis
7 years
OSCP certificate has arrived @offsectraining - well worth all the time and effort required to acquire it!
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@ithilgore
Fotis Chantzis
4 years
Amazing we're already ranked #7 in Network Security! @Einstais @calderpwn @edeirme @beauwoods @nostarch
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@ithilgore
Fotis Chantzis
4 years
This is beyond surprising! Our kindle version of 'Practical IoT Hacking' book is now: #1 in Network Security #3 in Computer Network Security #8 in Computer Hacking on Amazon:
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@ithilgore
Fotis Chantzis
6 years
@nicowaisman @defcon Come to the biohacking village - there will be medical devices to play with :)
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@ithilgore
Fotis Chantzis
5 years
Excited to be a co-instructor for the @Defcon workshop on "Hacking Medical Devices" with @jradcliffe02 - Registration opens on Monday: #DEFCON27
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@ithilgore
Fotis Chantzis
4 years
It's finally here! Take 35% off your pre-order of Practical IoT Hacking through December 29th with code HACKTHINGS at . You'll get Early Access chapters now. Print books will be sent as soon as they receive inventory — around February 2021.
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@ithilgore
Fotis Chantzis
5 years
2 days until the biohacking village @DC_BHV CTF @defcon - get ready for an immersive hospital environment while you hack your way through insecure medical devices, analyze DICOM and extract PHI from vulnerable PACS servers! #medsec
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@ithilgore
Fotis Chantzis
5 years
@EvaLovelac3 @TProphet I have seen medical devices crashing and rebooting due to a simple Nmap version scan against an unauthenticated exposed network service. #KilledByNmap
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@ithilgore
Fotis Chantzis
6 years
Getting ready for @defcon - meet you all at the #bioahacking village @DC_BHV where you will be able to tamper with medical devices #medsec
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@ithilgore
Fotis Chantzis
5 years
Just received my US green card today! The exhilaration is sky-high - this is such a big step and was well worth all the time, effort and stress throughout the last years!
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@ithilgore
Fotis Chantzis
6 years
Just finished a podcast with @sean_martin , @MarcoCiappelli of @ITSPmagazine and @beauwoods , Nina Alli @headinthebooth talking about the upcoming @Defcon biohacking village @DC_BHV - ethical implications, medical device security #medsec , wet labs, transhumanism and more!
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@ithilgore
Fotis Chantzis
6 years
Getting ready for the @defcon China workshop with @calderpwn and @edeirme on Ncrack and Nmap NSE Development for Offense and Defense. New #Ncrack module will be presented.
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@ithilgore
Fotis Chantzis
1 year
Join us for our book signing of "Practical IoT Hacking" at 4 pm at the @nostarch booth in the vendor area of #DEFCON31 @calderpwn @beauwoods
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@ithilgore
Fotis Chantzis
5 years
This has all the material (including the VM and solved exercises) from my segment at the medical device hacking workshop today @defcon : #defcon
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@ithilgore
Fotis Chantzis
5 years
Tomorrow @brrcon_ fellow Mayo engineer @_sophron will be presenting "Advanced Wifiphiser Usage for Red Team Campaigns": Don't miss it! #infosec #wifi - You can try wifiphisher at
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@ithilgore
Fotis Chantzis
6 years
Presenting the #DICOM #medsec CTF at the biohacking village @DC_BHV @defcon with @julioauto and @DaniloNC #defcon
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@ithilgore
Fotis Chantzis
3 years
Fireside Chat organized by @IoTvillage with @calderpwn (co-author), @lilyhnewman (security reporter at WIRED) and me on "Practical IoT Hacking" and our @nostarch book:
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@ithilgore
Fotis Chantzis
12 years
Any recommendations for hotels in SF?
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@ithilgore
Fotis Chantzis
5 years
We have created more than 40 flags so far for the @DC_BHV Biohacking Village CTF @defcon - from Software Defined Radio challenges to PACS / DICOM exploitation to medical device firmware forensics! #medsec
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@ithilgore
Fotis Chantzis
5 years
The stakes are now high at the biohacking village CTF! @DC_BHV @defcon #defcon #defcon27
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@ithilgore
Fotis Chantzis
5 years
Just got my @defcon instructor badge! #DEFCON see you tomorrow at the medical device hacking workshop!
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@ithilgore
Fotis Chantzis
5 years
An amazing conference and hosting @owasp_riviera in Cozumel, Mexico. Included was a boat tour to El Cielo! Many thanks to @calderpwn and the rest of the team that made all of this possible!
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@ithilgore
Fotis Chantzis
4 years
I am thrilled to announce that, starting tomorrow, I will be joining OpenAI's security engineering team and help lay the foundations for a safe and secure AGI! ()
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@ithilgore
Fotis Chantzis
4 years
I am immensely proud of the work we have been doing @mayoclinic to improve the security of medical devices & clinical systems and protect patients' lives - an honorable and meaningful mission. But the time has come to move on the next adventure.
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@ithilgore
Fotis Chantzis
5 years
I am quite satisfied with how the @GrrCON presentation went and the feedback I got! Thank you all for watching! The questions & discussions after the talk made all the stress and effort worth it 😁 #GrrCON
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@ithilgore
Fotis Chantzis
5 years
W00t! Workshop accepted for @defcon 27 - more to come soon! #medsec #infosec @jradcliffe02
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@ithilgore
Fotis Chantzis
11 months
❤️❤️❤️
@OpenAI
OpenAI
11 months
We have reached an agreement in principle for Sam Altman to return to OpenAI as CEO with a new initial board of Bret Taylor (Chair), Larry Summers, and Adam D'Angelo. We are collaborating to figure out the details. Thank you so much for your patience through this.
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@ithilgore
Fotis Chantzis
6 years
graph of the day
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@ithilgore
Fotis Chantzis
2 years
@FarjaalAhmad These are not real commands. It's just the AI model generating text that looks like real output of commands. You can verify this by generating a unique hash on an endpoint you control and trying to fetch it from ChatGPT: you won't be able to.
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@ithilgore
Fotis Chantzis
6 years
Robert M. Lee on ICS security: "My biggest fear is the fear" @texas_cyber #TCS2018
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@ithilgore
Fotis Chantzis
6 years
Last January I had the opportunity to present at the Medical Device Security 101 Conference @ARC_MedSec about "Common Vulnerabilities in Medical Devices" - many more upcoming conferences scheduled for the coming months on #medsec #healthcare #infosec
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@ithilgore
Fotis Chantzis
6 years
Preparing the slides and a mini-CTF for the #medsec section of the @defcon biohacking village @DC_BHV - lots of #DICOM involved ;)
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@ithilgore
Fotis Chantzis
7 years
Working on adding #Ncrack XML output support. All changes will be committed to which marks the beginning of 0.7 release! #Nmap
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@ithilgore
Fotis Chantzis
5 years
Biohacking Village CTF 2019 has started! @DC_BHV @defcon #defcon
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@ithilgore
Fotis Chantzis
7 years
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@ithilgore
Fotis Chantzis
5 years
Talking about exploiting network protocols of Io(M)T systems @owasp_riviera for the Latam Tour 2019 in Cozumel, Mexico. @calderpwn #medsec #iotsecurity
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@ithilgore
Fotis Chantzis
5 years
Flying to Vegas today, see you at the medical device hacking workshop () @defcon tomorrow and at the biohacking village @DC_BHV CTF () on Friday!
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@ithilgore
Fotis Chantzis
6 years
Just finished demonstrating the new #Ncrack wordpress module at the @Defcon China workshop on "Ncrack and @Nmap NSE Development for Offense and Defense" with @edeirme and @calderpwn
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@ithilgore
Fotis Chantzis
5 years
Heading out to refil bloodstream with caffeinated beverages and get ready for my presentation @layer_one at 1pm on #IoT network exploitation. #infosec
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@ithilgore
Fotis Chantzis
8 years
I will be presenting about the Nmap project at @fosscomm2016 #nmap #ncrack
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@ithilgore
Fotis Chantzis
7 years
The S in IoT stands for Security.
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@ithilgore
Fotis Chantzis
2 years
This is amazing!
@bookauthority
BookAuthority
2 years
Big news @beauwoods , "Practical IoT Hacking" has been featured in our list of best Internet of Things books of all time!
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@ithilgore
Fotis Chantzis
6 years
PACS servers (talking #DICOM ) are so common in hospital networks, yet so insecure that we had even created a set of challenges for last year's @DC_BHV @defcon Biohacking Village CTF at Defcon to raise awareness about them:
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@ithilgore
Fotis Chantzis
5 years
Finally managed to get a #LoRa attack working! #iot #IoTSecurity Bad documentation made me spend hours debugging and digging in .cpp code to find correct values for configuring the radio
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@ithilgore
Fotis Chantzis
5 years
Excited for my upcoming talk on "Network Exploitation of IoT Ecosystems" at the @layer_one security conference! #infosec #iot
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@ithilgore
Fotis Chantzis
5 years
The third and final day of the biohacking village CTF 2019 will be tomorrow! All flags should be submitted by 12.30 pm the latest! @DC_BHV #DEFCON27 #defcon2019 #defcon
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@ithilgore
Fotis Chantzis
5 years
Some highlights from the great @owasp_riviera conference in Cozumel, Mexico: (in Spanish) @calderpwn #OWASPLATAM2019
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@ithilgore
Fotis Chantzis
6 years
3 hours to my presentation on Common Vulnerabilities in Medical Devices @texas_cyber #TCS2018 - see you at the Critical Infrastructure track at 1700
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@ithilgore
Fotis Chantzis
4 years
I can attest to that 100%. I recently had the experience of working with No Starch Press for an upcoming book and their editorial support is top-notch.
@billpollock
Bill Pollock -- [email protected]
4 years
Dig deeply into the level of editorial support you will receive when writing your book. We have seven editors on staff who will review and craft your work with you -- before your book goes to copyedit.
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@ithilgore
Fotis Chantzis
6 years
Come find me if you want to talk #Nmap , #Ncrack etc. Wearing black @Nmap tshirt. @thotcon
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@ithilgore
Fotis Chantzis
5 years
Great technical write-up of some of the challenges from our Biohacking Village @DC_BHV CTF at #Defcon2019
@ianatha
ian
5 years
The @DC_BHV #CTF at #DEFCON27 was lots of fun! This is my write-up of some of the CTF🚩challenges, and how I ranked 2nd:
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@ithilgore
Fotis Chantzis
8 years
I will be at the Google Mentor Summit for the #Nmap project on 28-30 Oct - hit me up if you are going to be there! #gsoc16
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@ithilgore
Fotis Chantzis
8 years
For the past 3 months, I have been authoring a video course on "Mastering Nmap" that will be published real soon - stay tuned! #Nmap
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@ithilgore
Fotis Chantzis
7 years
Star Wars Episode IV.1.d: The Pentesters Strike Back
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@ithilgore
Fotis Chantzis
5 years
The joys of wasting hours trying to debug an issue on an ARM microcontroller when the actual issue was *burnt* USART pins... 😩😑 #IoTSecurity
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@ithilgore
Fotis Chantzis
5 years
My presentation @GrrCON is already uploaded! #GrrCon #IoTSecurity
@HikeInstead
࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆࿆
5 years
Network exploitation of IoT ecosystems Fotios ( @ithilgore ) Chantzis for @GrrCON
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@ithilgore
Fotis Chantzis
7 years
Next #Ncrack release is almost ready! Stay tuned
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@ithilgore
Fotis Chantzis
5 years
@beauwoods Vendor: this new version of our medical device is "unhackable" (exact words) <next day, in our medical device lab> Engineers: got root #TrueStory
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@ithilgore
Fotis Chantzis
7 years
During this #Nmap Google Summer of Code @gsoc I will be mentoring @edeirme on finalizing NSE SSH support and new #Ncrack modules!
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@ithilgore
Fotis Chantzis
3 years
Always awesome to see our book in the top shelf 😄 @Einstais @calderpwn @edeirme @beauwoods @nostarch
@astepanovich
Amie Stepanovich
3 years
Some close-ups of the top shelf
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@ithilgore
Fotis Chantzis
6 years
Highlight of the first @BSidesLV day. @iamthecavalry whiskey
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