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InfoSec Write-ups
A collection of write-ups from the best hackers in the world on topics ranging from bug bounties and CTFs to vulnhub machines, hardware challenges and real life encounters. In a nutshell, we are the largest InfoSec publication on Medium. Maintained by Hackrew
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A collection of write-ups from the best hackers in the world on topics ranging from bug bounties and CTFs to vulnhub machines, hardware challenges and real life encounters. In a nutshell, we are the largest InfoSec publication on Medium. #sharingiscaring

Editors
Go to the profile of Sai Krishna Kothapalli
Sai Krishna Kothapalli
Founder/CEO Hackrew | Security Researcher | Indian | Alumnus, IIT Guwahati
Go to the profile of Anangsha Alammyan
Anangsha Alammyan
Author, Engineer, & Lover of fantasy fiction. I write about books, feminism & personal development. Find out more at https://authoranangsha.com | IG: anangsha_
Writers
Go to the profile of Aagam shah
Aagam shah
sorting out...🐞🐞🐞
Go to the profile of Neeraj Sonaniya
Neeraj Sonaniya
Whitehat Security Researcher
Go to the profile of Sriram
Sriram
Security Researcher | Founder, Director Technical— PrimeFort Pvt. Ltd | Google VRP Top Researcher
Go to the profile of HassanKhanYusufzai
HassanKhanYusufzai
Web Penetration Tester & Security Analyst Acknowledged by Top companies including Google,Microsoft ,Twitter, Ebay, Sony and Many others.
Go to the profile of Vipin Chaudhary
Vipin Chaudhary
Security Researcher | Bug Bounty Hunter
Go to the profile of Armaan Pathan
Go to the profile of Muhammad Khizer Javed
Muhammad Khizer Javed
I POST MY BLOGS ON https://blog.securitybreached.org/ #HackerOne & #Bugcrowd
Go to the profile of Mohammed Ramli
Mohammed Ramli
Co-Founder & Chief Security Officer @secrule.io
Go to the profile of Luka Sikic
Luka Sikic
OSCP, OSCE — Pwning since 99'
Go to the profile of AppSecure, Inc.
AppSecure, Inc.
AppSecure is a cyber security company, works with businesses across the world to protect their data, reputation and brand https://appsecure.security
Go to the profile of Alyssa Herrera
Alyssa Herrera
A web application security consultant and bug bounty hunter.
Go to the profile of Minture
Minture
Student and Researcher in the area of ​​information security, #WEB #Pentester #PHP #Python #Developer Acknowledged by : Microsoft
Go to the profile of Aneesh Dogra
Aneesh Dogra
Always been a tinker! Started coding in 2008 (when I was in 8th grade). Fell in love with x86 assembly, C and Linux: Manipulation of memory and getting RCE
Go to the profile of F3D.
F3D.
@f3d__ · security researcher · hacking · pentesting · beat-making · crypto
Go to the profile of vishnuraj
vishnuraj
Security engineer | OSCP | ! Note: blog post‘s are doesn’t represent my employer by any meaning and was performed during my free time. |
Go to the profile of Vishnu Prasad P G
Go to the profile of 0Katz
Go to the profile of Sanjay Singh Jhala
Go to the profile of res1n
Go to the profile of theMiddle
theMiddle
Security Researcher
Go to the profile of Ronald Stoner
Ronald Stoner
Security and Infrastructure Guy | Stoner Consulting LLC | PGP EF20BF3B
Go to the profile of Shivam Singh Sengar
Shivam Singh Sengar
Arr[ ] = {Blogger, Writer, Thinker, Coder, Reverser, Sketcher}; Task.perform(Arr[random.nextInt(6)]);
Go to the profile of Rahul R
Rahul R
Security NOOB :)
Go to the profile of Sangeetha Rajesh S
Sangeetha Rajesh S
In ❤ with InfoSec
Go to the profile of Adam Toscher
Adam Toscher
Adam is a offensive security engineer and red team operator with over 20 years of experience in IT
Go to the profile of M Harsha Vardhan
M Harsha Vardhan
Red team , Malware lover, exploit lover...
Go to the profile of Jake Reynolds
Jake Reynolds
https://jakereynolds.co All contents of this blog are not associated with my employer.
Go to the profile of Koen Rouwhorst
Koen Rouwhorst
Security Engineer at Framer
Go to the profile of Mohammad Nurnobi
Mohammad Nurnobi
don’t be so sweet that people swallow you up, nor so bitter that they spit you out. -Luqman (ah)
Go to the profile of Emad Shanab
Emad Shanab
A lawyer & A noooob & every law has it’s own bugs 🐜
Go to the profile of Xiaoyin Liu
Go to the profile of Mark Christian Deduyo
Go to the profile of Kanishka
Kanishka
Netizen
Go to the profile of Arjun C Shekar
Arjun C Shekar
A Professional Hacker, Threat Analyst, Knows about Kali Linux and other penetration testing distros, Passionate Photographer, Action Movie Lover
Go to the profile of AneesKhan
Go to the profile of denwilly
Go to the profile of Yeasir Arafat
Yeasir Arafat
Entrepreneur || Synack Red Team Member.
Go to the profile of Luke Stephens (@hakluke)
Luke Stephens (@hakluke)
Pentester | Hubby | Musician
Go to the profile of Muhammad Uwais
Go to the profile of Vincent Yiu
Vincent Yiu
Advanced Threat Replication. Simulating real threat actors using bleeding edge techniques.
Go to the profile of Hisham Mir
Hisham Mir
Co-Founder of SecurityWall.co
Go to the profile of Max
Max
Impassioned about finding vulnerabilities in web apps. H1 http://hackerone.com/w2w. Linkedin: /in/w2w/. Telegram channel [RU only] http://t.me/vulns
Go to the profile of newp_th
newp_th
secure your computer 😊
Go to the profile of Hariom Vashisth
Hariom Vashisth
Full Stack Developer || DevOps Engineer || AWS || GCP || Docker || Kubernetes • Now @airtel • Prev @exzeo @SocialCops @itc • RT's NOT Endorsements • 🇮🇳
Go to the profile of Daniel A. Bloom
Daniel A. Bloom
Daniel Bloom is a young, self taught, entrepreneur and the Founder of Bloom Cyber Defense, LLC — http://bcdefense.com — Twitter: @bcdannyboy
Go to the profile of Mitch Moser
Mitch Moser
digital brain | analog heart
Go to the profile of ice3man
ice3man
A hacker, programmer and bug bounty hunter.
Go to the profile of Mohammed Eldeeb
Go to the profile of Gujjuboy10x00
Gujjuboy10x00
security analyst | Keep calm and hack the planet https://linkedin.com/in/vishalpanchani
Go to the profile of Vangelis Stykas
Vangelis Stykas
Father of two sons,ARIS fan,semi lunatic from time to time (lately most of the time).Mostly breaking IoT and generally internet connected devices.
Go to the profile of Yasho
Go to the profile of Kedrisec
Go to the profile of Aditya Anand
Aditya Anand
CyberSec Professional | Hacker | Developer | Open Source Lover | Website - aditya12anand.com | Donate - paypal.me/aditya12anand
Go to the profile of Andrew Hilton
Andrew Hilton
Cyber Security Researcher
Go to the profile of Valeriy Shevchenko
Valeriy Shevchenko
I am a guy passionate about testing and security researching 👨‍💻 → t.me/valyaroller
Go to the profile of SPARTaN
SPARTaN
I hack things and other stuff.
Go to the profile of Ashish Jha
Ashish Jha
Saw the purity of computers and felt in love with them. Red teamer: https://bluefire-redteam.com | Guitarist | Programmer | Love Electronics | Back-end lover
Go to the profile of SE Adams
SE Adams
I write about everything and nothing.
Go to the profile of Oneeb Malik
Oneeb Malik
Full stack developer. Systems programming and infosec enthusiast. Currently figuring out the logistics of owning an alpaca farm.
Go to the profile of Hamada
Hamada
Cyber security analyst @canavaroxum
Go to the profile of Olaf Hartong
Olaf Hartong
FalconForce | DFIR | Threat hunter | Data Dweller | Splunk | Sysmon | Microsoft MVP
Go to the profile of Chris House
Go to the profile of SI9INT
SI9INT
Whitehat in own definition
Go to the profile of Tung Pun
Go to the profile of d0nut
d0nut
Security Engineer, developer, and part-time bug hunter
Go to the profile of TomNomNom
TomNomNom
Explainer, talker, coder, fixer, eater, not really a sheep.
Go to the profile of Muhammad Abdullah
Muhammad Abdullah
Computer Engineering Student ,Pentester ,Photographer
Go to the profile of Sahil Ahamad
Sahil Ahamad
Security Engineer II @zomato | Information Security Researcher | Bug Bounty Hunter | https://hackerone.com/ehsahil
Go to the profile of Dimaz Arno
Dimaz Arno
IT Security Enthusiast, CEO of Ethic Ninja https://ethic.ninja
Go to the profile of Wh11teW0lf
Go to the profile of Miguel
Miguel
Security Technician / Bug Bounty Hunter / EO8gBoaBmUMg
Go to the profile of Muhammad Abdullah
Go to the profile of Mohamed Sayed
Mohamed Sayed
My name is Mohamed my nickname is Flex, I’m a Bug Hunter at HackerOne and Synack Red Team Member.
Go to the profile of Nathan
Go to the profile of Minali Arora
Minali Arora
Security Researcher, Blogger, Orator and a Technology Enthusiast
Go to the profile of John Troon
John Troon
Seeker of segmentation faults | Technical lead, SOC | Pwner | OSCE
Go to the profile of Efkan
Go to the profile of pwn4magic
pwn4magic
CTF Writeups & More
Go to the profile of Daniel Maksimovic
Daniel Maksimovic
A pentester. A bug bounty hunter. All together that wierd security guy.
Go to the profile of Adesh Kolte
Adesh Kolte
Listed in Top 100 most respected hackers in the world by Microsoft at the BlackHat conference in America 2018
Go to the profile of Mark Mo
Mark Mo
@_markmo_ on twitter
Go to the profile of Japz Divino
Japz Divino
Web Application Security Researcher || Programmer/Analyst || Bug Bounty Hunter.
Go to the profile of Elliot Alderson
Elliot Alderson
🇫🇷 Hacker. Fight disinformation at Predicta Lab. Not completely schizophrenic. Not related to USANetwork.
Go to the profile of Gopal Singh
Go to the profile of Zahid Ali
Go to the profile of Luan Herrera
Go to the profile of Friendly
Friendly
I am Friendly. Your friendly mid-night exploiter.
Go to the profile of Javier Olmedo
Javier Olmedo
Security Researcher & Ethical Hacker - Author blog https://hackpuntes.com
Go to the profile of Trevor Phillips
Go to the profile of inc0gnito
inc0gnito
CTF 🚩 || HACKTHEBOX || VULNHUB || REVERSING
Go to the profile of Yarden Shafir
Yarden Shafir
A circus artist with a visual studio license
Go to the profile of Mike Bond
Mike Bond
Cyber Security Enthusiast
Go to the profile of Nir Chako
Nir Chako
Red Teamer | Security Researcher
Go to the profile of Ajay Gautam
Ajay Gautam
Head of Security at NASSec
Go to the profile of N0_M3ga_Hacks
Go to the profile of Luke Berner
Luke Berner
Security Engineer
Go to the profile of SECARMY
SECARMY
We organize hacking based Capture-the-flag competitions, hangout on discord, make podcasts, blogs, posts and alot more things.
Go to the profile of Paulo Choupina
Go to the profile of Marin Moulinier
Go to the profile of Ayoub FATHI
Ayoub FATHI
Senior AppSec Engineer, Bug Bounty Hunter & I enjoy breaking things
Go to the profile of Kunal pandey
Kunal pandey
Security Researcher | Bug bounty Hunter and Rubix Cube Solver :p
Go to the profile of Renwa
Go to the profile of Baibhav Anand
Baibhav Anand
Baibhav@Medium:~$ whoami — A security noob here to share about some of his findings.
Go to the profile of gayathri rachakonda
gayathri rachakonda
#infosec enthusiast, noob, traveller, foodie, bughunter😝, pentester 🙂
Go to the profile of Sandh0t
Sandh0t
Sr. Security Engineer, Ethical Hacker, Bug Bounty Hunter At HackerOne, Synack Red Team, and BugCrowd. https://hackerone.com/sandh0t | Tweet @sandh0t
Go to the profile of Marcelo Sacchetin
Marcelo Sacchetin
Application Security Engineer @MSacchetin
Go to the profile of Putra Adhari
Putra Adhari
IT Security Research ~ BugBounty ID Founder
Go to the profile of shub rathore
Go to the profile of Martin Schneider
Martin Schneider
Software architect and basketball coach from Austria currently living in Singapore
Go to the profile of Nishchal Raj
Nishchal Raj
Software Engineer | Ex-DSC Lead | Reader & Writer | Researcher | Linkedin/Github/Facebook: thenishchalraj
Go to the profile of Artem Smotrakov
Artem Smotrakov
I write about Java and security
Go to the profile of ruvlol
Go to the profile of MRunal ✪
MRunal ✪
Blogger && Security Researcher && digital forensic analystt
Go to the profile of Ashwini Singh
Ashwini Singh
Cybersecurity enthusiast
Go to the profile of Guhan Raja (குகன் ராஜா)
Go to the profile of John Wu
Go to the profile of Gaurang Bhatnagar
Go to the profile of Ananda Dhakal
Ananda Dhakal
Passionate about cyber security
Go to the profile of Arseny Reutov
Arseny Reutov
Application Security Researcher at Positive.com
Go to the profile of frycos
frycos
Red Teamer @frycos
Go to the profile of Divyanshu Shukla
Divyanshu Shukla
Security Engineer | Threat Hunter | DevSecops | Linux Administrator
Go to the profile of James Davis
James Davis
I am a professor in ECE@Purdue. I hold a PhD in computer science from Virginia Tech. I try to summarize my research findings in practitioner-friendly ways.
Go to the profile of Sayaan Alam
Sayaan Alam
15 Y/O CyberSecurity Researcher Class | Student | Acknowledged By Google, IndiaToday, Spoyl, 20+ Companies
Go to the profile of Mohd Shibli
Mohd Shibli
Software Engineer | Security Researcher | Sensei | Sysadmin | Github http://github.com/shibli2700 | Twitter @_d3f4u17_
Go to the profile of Swar Shah
Go to the profile of Anonymous
Go to the profile of Harshit Maheshwari
Go to the profile of Lee Chun How
Lee Chun How
cout << “Gabriel Lee ” << “Cyber Security Enthusiast” << ”Security Consultant ” << “Penetration Testing “ << endl;
Go to the profile of Jose Samuel
Jose Samuel
Jose Samuel has over 25 years of experience in IT infrastructure, IT audit, Information Security, Cyber Security, governance, compliance and technology risk
Go to the profile of wis4nggeni
wis4nggeni
Former Android Developer, now Full time Bug Bounty Hunter from Indonesia. Feel free to contact me anytime : https://t.me/wis4nggeni.
Go to the profile of Aditi Bhatnagar
Aditi Bhatnagar
Tech enthusiast, engineer, activist | Opinions are my own www.digitised.in
Go to the profile of Allie Mellen
Allie Mellen
computer engineer • jiujiteira • security & research writer for Nocturnus @Cybereason
Go to the profile of Ernst Kriek
Ernst Kriek
self-proclaimed pessimist • infosec lover • young dad • professional crazy person • mediocre at best
Go to the profile of Alex Birsan
Alex Birsan
Software guy
Go to the profile of Akash Methani
Go to the profile of Billy Ellis
Go to the profile of GoldenOak
GoldenOak
Red Team & Cyber Researcher
Go to the profile of Vickie Li
Vickie Li
Professional investigator of nerdy stuff. Hacks and secures. Creates god awful infographics. https://twitter.com/vickieli7
Go to the profile of SACHIN GROVER
SACHIN GROVER
Bug Hunter, Linux Security Engineer
Go to the profile of Kuldip Patel
Kuldip Patel
CSE Student | CTF Player | Android Developer | Cyber Security Enthusiast | Lead at Developer Students Club RNGPIT
Go to the profile of Navneet
Navneet
I am a Computer Science - Information Security student. I write stuff about web application security bugs/issues.
Go to the profile of Tommaso De Ponti
Tommaso De Ponti
A dev writing about how to do cool stuff with Python | Cybersecurity | AI | Bug Bounty Hunter
Go to the profile of Maria Zulfiqar
Maria Zulfiqar
Software developer & Cyber Security Enthusiast.
Go to the profile of Sriram Kesavan
Sriram Kesavan
Founder & CEO_Techgreech Cybersolutions ❤️ | Cybersecurity Researcher | ST@y Up, H4cK iT, SeNd It, iF not Le@K iT | Hacked into @google @tesla @adobe...
Go to the profile of DarkLotus
DarkLotus
Bug Bounty Hunter
Go to the profile of ritiksahni
ritiksahni
Cybersecurity Aspirant❤️
Go to the profile of Aditya Soni
Aditya Soni
Cyber Security Researcher
Go to the profile of Cryptonic007
Cryptonic007
Learner | CTF Player | Bug Hunter
Go to the profile of Sourov Ghosh
Sourov Ghosh
I like computers and offensive security.
Go to the profile of Silent Bronco
Silent Bronco
cat bio →Ethical hacker|Bug Bounty Hunter
Go to the profile of Syed Izhar Ahmed
Syed Izhar Ahmed
A Guy who loves to talk about information Security | 1337 4 life
Go to the profile of Harsh Bothra
Harsh Bothra
Security Engineer | Bugcrowd Top 150 | Synack Red Teamer | Bug Hunter | Author | Occasional Speaker | Learner | Poet | Twitter — @harshbothra_
Go to the profile of bigb0ss
bigb0ss
\x90\x90 — Penetration Tester | “Love Building Brain Muscles” in ExpDev, CTF, Reversing, RedTeam, Evasion Techniques
Go to the profile of Ch Srinivas
Ch Srinivas
Web & Mobile Application security Engineer
Go to the profile of Henry Huang
Henry Huang
Into programming, bug hunting
Go to the profile of FHantke
FHantke
Computer Science Student. Interested in IT security and forensics. https://fhantke.de/
Go to the profile of Cyber Defecers
Cyber Defecers
We are a group of passionate information security researchers and CTF players who likes to learn more about hacking.
Go to the profile of Shiv Sahni
Shiv Sahni
Security Engineer |Security Consultant |Infosec Trainer | Author | Lecturer | Open Source Contributor | Learner https://www.linkedin.com/in/shivsahni/
Go to the profile of Shashwat Saket
Shashwat Saket
I am pentester, computer-activist, network-hacker. Follow me to learn basics to advanced pentesting and bug bounty.
Go to the profile of Nitesh Pandey
Nitesh Pandey
I am security researcher and penetration tester.You can follow me on twitter https://twitter.com/NiteshYours and Linkedin https://www.linkedin.com/in/osintnites
Go to the profile of Ensar Seker
Ensar Seker
Security Researcher
Go to the profile of Aung Pyae Ko Ko
Go to the profile of Mukul Trivedi (M0hn1sh)
Go to the profile of Hacktivities
Hacktivities
Interested in all things Cyber Security and Technology.
Go to the profile of Pratik Dabhi
Pratik Dabhi
Bug Bounty Hunter Top 200 Security Researcher on Bugcrowd. Acknowledgement by Many Companies Like Google, Apple,Microsoft,Oneplus,Mastercard,Dell,Hotstar
Go to the profile of Kamesh Karmegam
Kamesh Karmegam
Security Engineer
Go to the profile of Tsitsi Flora
Tsitsi Flora
Information Security, self, humility and ice cream
Go to the profile of shivam Pandey
shivam Pandey
Student and bug bounty hunter
Go to the profile of Harshit Sengar
Harshit Sengar
Synack Red Team Member. I am a cyber security enthusiast and security researcher. https://harshitsengar.in
Go to the profile of Ranjeet Jagtap
Ranjeet Jagtap
At the end of the day, my crime is that of curiosity.
Go to the profile of Machina
Machina
Trying To Survive. Github:https://github.com/Ckrielle
Go to the profile of Ifediri Dominic
Ifediri Dominic
Infopreneur | soldier at PUBGmobile | Music lover | InfoSec Noob
Go to the profile of Devansh batham
Devansh batham
Lazy by day , Hacker by night
Go to the profile of hacktivist
hacktivist
Cybersecurity enthusiast.
Go to the profile of Vuk Ivanovic
Vuk Ivanovic
Started as a writer, added IT Security and bug bounty hunting, and these days collecting knowledge especially anything with word quantum.
Go to the profile of Akshay kerkar
Akshay kerkar
I'm a Cybersecurity Enthusiast! I love doing research and pen-testing.
Go to the profile of Dheeraj Madhukar
Go to the profile of Mase
Go to the profile of Abhishek Karle
Go to the profile of swaysthinking
swaysthinking
My bugbounty online journal. From writeups of bugs, tips and tricks, and motivation for beginners, its all here on my medium account.
Go to the profile of Gowtham Bhujam
Gowtham Bhujam
Interested in Ethical Hacking and Deep Learning.
Go to the profile of Nimish Mishra
Nimish Mishra
Breaking and rebuilding! Find me on LinkedIn at https://www.linkedin.com/in/
Go to the profile of Raja Sudhakar
Raja Sudhakar
CEH | Penetration Tester
Go to the profile of vivek chauhan
Go to the profile of Jinson Varghese
Jinson Varghese
Information Security Analyst at Astra
Go to the profile of Shaik Ajmal
Go to the profile of Suryansh Mansharamani
Suryansh Mansharamani
An iOS  developer, ✍️ playwright, 📖 author and 🪐astronomy an ✈️ aeronautics enthusiast.
Go to the profile of Rakesh Krishnan
Rakesh Krishnan
Independent Security Researcher and Threat Analyst. Often sheds light on Dark Web. Regular contributor to Infosec Community.
Go to the profile of Ismayil Tahmazov