J'onn J'onzz (@leinn32) profile picture

Security engineer, Historian, Researcher at huskysec, I like mobile applications

Joined May 2009
Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)Photo by J'onn J'onzz (@leinn32)
Aquí les comparto la presentacion de la plática de ayer mala racha bugbounty omespino.com/bugcon2025_mala… impartida en la @BugCON en el barrio bravo de #bugbounty, gracias a todos los asistentes y @SecsiScarlett @leinn32 @dracutdashf
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J'onn J'onzz retweeted
Listen, if you think you can just waltz into Cybersecurity, I’ve got news for you…. …..you absolutely can, we’re really bad at identifying and hiring competent people
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Ya está disponible en YT el episodio que tuvimos con @shava_dor Conoce como ha sido crear la comunidad de hack the box y HackGDL youtu.be/WAmK7Zp0GNc
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Ya conoces CAIDO? Yo tampoco, así que hoy estaré probandolo en Twitch 🇲🇽 18:00 🇦🇷 21:00 Twitch.tv/4sus_
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At @defcon! I'm looking for someone with the #WHY2025 edition of @phrack to trade QR halves for the #Phrack72 CTF. Drop me a DM if interested!. @netspooky @chompie1337 @richinseattle
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theIllusionOfFreeChoice redd.it/1mm8800
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Manuel (amigo personal he ido a los bautizos de todos sus hijos) va a mostrar como la curiosidad te lleva lugares muy interesantes, si están en el summer hacker Camp y los veo ahí les invito una chela después de escuchar a mi compa!
Estoy muy emocionado porque este viernes 9 de agosto voy a dar una plática en el @defcon 33 dentro de la Radio Frequency Village. Mi charla “The Small Packet of Bits That Can Save (or Destabilize) a City” combina historia, técnica y mi experiencia con sistemas de alerta por RF.
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Estoy muy emocionado porque este viernes 9 de agosto voy a dar una plática en el @defcon 33 dentro de la Radio Frequency Village. Mi charla “The Small Packet of Bits That Can Save (or Destabilize) a City” combina historia, técnica y mi experiencia con sistemas de alerta por RF.
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🎙️ Hack, Talk & Drink 💻 💻Estoy por lanzar mi propio podcast de 👾 Sí… otro podcast, pero con mucha pasión por el hacking. Ya tenemos a los primeros invitados confirmados. Dos grandes conocidos en la comunidad de BugBounty. 🐞 😎 💬 ¿Qué le preguntarías a un/una bughunter?
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J'onn J'onzz retweeted
“It was a revelation!” That’s how @dracutdashf aka lemonoftroy describes his first steps into hacking. Adrián opens up about his favourite tools, the type of bug he loves to hunt most, the discovery he’s most proud of, and his top tip for newbies 👇 youtube.com/watch?v=lQVgjdxU…
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J'onn J'onzz retweeted
Just built an MCP for Ghidra. Now basically any LLM (Claude, Gemini, local...) can Reverse Engineer malware for you. With the right prompting, it automates a *ton* of tedious tasks. One-shot markups of entire binaries with just a click. Open source, on Github now.
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J'onn J'onzz retweeted
RF Village MX en @HackGDL Descubre lo Invisible, Hackea lo Imposible! Fecha: 1 de marzo Charlas | Playeras | Stickers Explora el mundo de las radiofrecuencias, conoce y conecta con la comunidad! ¡No te lo pierdas!
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J'onn J'onzz retweeted
🛑 GIVEAWAY ALERT 🛑 Today is DAY TWO of FIVE DAYS of @arcanuminfosec and friends Black Friday and Cyber Monday giveaways! Today we are giving away FIVE seats to our flagship training: "The Bug Hunter's Methodology Live" TBHM is one of the BEST trainings in the industry for modern pentesters, bug hunters, and red teamers! The next cohort is in two weeks but, these tickets can be used for any cohort next year. • arcanuminfosec.gumroad.com/l… Each person can have up to FOUR entries to the giveaway! ♻️ Reshare This Post = 2 Entries ❤️ Like This Post = 1 Entry ✍️ Comment This Post = 1 Entry Winners will be posted NEXT TUESDAY!
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J'onn J'onzz retweeted
Fue un placer presentar un pequeño taller con @htb_mx en @BugCON este año. Muchas gracias a quienes pudieron acudir y espero que les haya sido interesante y hayan aprendido mucho. Es mi primera vez dando un taller así y creo que aún hay cosas que mejorar.
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J'onn J'onzz retweeted
This 20th @ekoparty was 🔥🔥. And we are so grateful of being part of it. We gave it all (three days had full house) and hope everyone had enjoyed our Village.
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If you missed the Off By One Security stream today with the amazing @lauriewired, you can watch the recorded session here: youtube.com/live/aLCoyJof95Y… See you next Friday with @jimshew on Tactical Multi-Factor Authentication (MFA) Bypass Techniques! @offby1security
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J'onn J'onzz retweeted
We are doing a giveaway for our Empire Ops: Tactics (Lazarus) course next week on Sep 11! Simply retweet this to enter, and we will announce the winner tomorrow at 1 PM EST. Come learn about ransomware simulation and threat emulation.

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J'onn J'onzz retweeted
This strange tweet got >25k retweets. The author sounds confident, and he uses lots of hex and jargon. There are red flags though... like what's up with the DEI stuff, and who says "stack trace dump"? Let's take a closer look... 🧵1/n
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