90n20 (@90n20sec) header
90n20 (@90n20sec) profile picture

#CHFI | #OSCP | #eCPTXv2| #eCPPTv2 | #eCXD | MSc #Cybersecurity. Python/Rust/Nim lover. CTF Player.

Somewhere in Spain
Joined August 2019
Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)Photo by 90n20 (@90n20sec)
Cosechando éxitos. Gracias a tod@s por el apoyo!! Definitivamente y pese a las dificultades, este es un gran año! #malware #antivirus #ia #ArtificialIntelligence #MachineLearning #ui1 elcorreodeburgos.elmundo.es/… noticiascyl.com/t/2066461/av… diariodeburgos.es/noticia/Z6…
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PHP2Shell: toolkit de investigación para CVE-2026-109618/109619. RCE pre-auth en session.upload_progress de PHP (mod_php). 5 builds verificados · 13 perfiles · labs · calibración · detección. Solo testing autorizado. github.com/devploit/php2shel…
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Another exciting giveaway for our community as part of the Month of Azure Red Teaming 2026. We’re giving you a chance to win FREE access to our Azure Red Team courses: • CARTP® (Beginner) • CARTE® (Advanced) If you’ve been looking to build real-world Azure Red Teaming skills through hands-on labs and practical attack paths, this is your opportunity. How to participate: • Like and follow us • Comment which course you’re interested in and why • Repost this post We will announce the random winners on April 25, 2026. Don’t miss this exclusive Month of Azure Red Teaming offer: Flat 20% OFF on our Azure Red Team courses Use code: MOART20 Valid till May 5, 2026 Explore now: alteredsecurity.com/azure-re… #Azure #RedTeaming #CloudSecurity #CyberSecurity #AzureSecurity #Giveaway #AlteredSecurity
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🎁 We're giving away 20 FREE SAL2 certifications 🎁 The wait is over...SAL2 is officially here 🚀 Security Analyst Level 2 is the certification that proves you can investigate, decide, and lead in a real SOC. The only defensive cert that covers every domain a real L2 analyst faces! 💸 With a special launch price of $599 valid until 2 April only. 🚀 Comment, SHARE and fill in the form to enter the free cert giveaway ▶️ forms.gle/sHHN8NUNp2TE4sXb8 ❓Want to know more what SAL2 is about see here: tryhackme.com/certification/…
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🧠 Stop asking AI for “the whole tool.” Learn a structured way to build real red team tooling with AI - step by step, no hallucinations. 📅 Apr 16 | 10AM–12PM ET 🔗 go.sans.org/PuSy2Y #RedTeam #AI #SEC565
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90n20 retweeted
Giving away 1 month of Claude AI Pro to 3 people. Follow + Repost to enter. Comment "AI" Winners announced Friday.
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Querida Red: lo prometido es deuda. Aquí tenéis el repositorio de la herramienta que comenté en #rootedcon2026. Antes un breve descargo de responsabilidad: 1. La herramienta tiene distintos puntos débiles que permiten hacer inútil su uso efectivo en el mundo real: estoy comprometido con lo que hago, pero no quiero liberar nada dañino *todavía*. 2. Puede ser o no que funcione bien en escenarios de NAT traverlas: he probado distintos y otros no. 3. Hay cosas en la forma que se usa el cifrado que son cuestionables. En conclusión, NO LA USÉIS PARA NADA QUE OS PUEDA GENERAR UN PELIGRO. github.com/cryptografree/p2p… #rootedcon2026 #criptored #anon #CryptograFREE /cc @criptored @rootedcon @mindcrypt
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Querida red: recordad que mañana a última hora voy a liberar la herramienta para ocultar canales de datos en WebRTC. *CRÍTICO*: no uséis esta herramienta para nada en real porque está debilitada intencionadamente en distintos puntos. *EL QUE AVISA NO ES TRAIDOR*: lo repito, está debilitada intencionadamente para que no la use gente malvada alegremente. Esta herramienta es solamente UN AVISO de lo que vamos a empezar a liberar (ya sin debilitar) si persisten en intentar robarnos nuestros derechos fundamentales. Si vosotros movéis ficha, nosotros también hasta que lleguemos al jaque mate. Os animo a pensarlo tres veces antes de que entremos en un territorio que no queremos ninguno. #rootedcon2026 #cryptograFREE
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Today I’m launching Threat Hunting Labs. Over the years I’ve analyzed many real-world intrusions. One thing became obvious: most training platforms don’t resemble how investigations actually happen. So I built something different. Threat Hunting Labs focuses on investigation-driven learning using real telemetry and structured investigative paths. If you want to get better at investigating breaches, you should practice investigating breaches. More details here: threathuntinglabs.com/blog/i…
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⏳ Only 24 Hours Left! The clock is ticking! We're giving away all of these hacking devices for absolutely FREE to celebrate hitting 600,000 subscribers on YouTube. If you haven't jumped in yet, this is your final warning before the window slams shut. 🎉 Thank you so much for your love and support 🙏 ✅ How to Enter Follow us on X Comment on this or the original post what you want us to teach next. Repost this or the original to complete your entry! 🗓️ Ends: Tomorrow 🎁 Each winner will receive a powerhouse kit including: 🔥 ZS Cactus PRO: Combine keystroke injection capabilities, hardware keylogging and Wi-Fi phishing with wireless control. 🔥 ZS Venom PRO: Keystroke injection capabilities and Wi-Fi phishing with wireless control all inside a normal charging cable! 🔥 Atheros AR9271 WiFi Adapter: The gold standard for wireless hacking. It supports monitor mode and packet injection out of the box with rock-solid Linux compatibility. 🔥 Realtek RTL8812AU WiFi Adapter: Need 5Ghz? This dual-band adapter gives you high-gain performance and modern 802.11ac support for auditing high-speed networks. 🔥 Data Blocker: Stay secure on the go. This "USB condom" prevents accidental data exchange and juice jacking when charging your devices in public spaces.
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Dear Infosec/AI and CTI community, We have released our new book, "Threat Intelligence: Chaos, Signals, and Attribution — AI Applied to Threat Intelligence," by Alfonso Muñoz and Jacobo Blancas - amazon.com/dp/B0GS3762DV I hope you can help us share it to reach as many people as possible who are interested in threat intelligence, AI applications, and cybersecurity. Here is a little bit of its description: We live in a paradox: never before have we had so much information about threats, yet we rarely have real intelligence. Reports, IOCs, feeds, malware samples, and indicators arrive constantly, often mixed with noise and inconsistent labels. For many teams, the result is an ocean of disconnected signals where urgency overwhelms what truly matters. Threat Intelligence: Chaos, Signals, and Attribution. AI Applied to Threat Intelligence addresses this challenge with a clear goal: transforming scattered data into useful, actionable, and defensible knowledge. The book argues that CTI is not simply a list of “bad things” to block but a discipline with its own cycle, methods, metrics, and cognitive biases, closely linked to business decisions and risk management. The first part establishes the foundations of CTI: its different levels (strategic, operational, tactical, and technical), the intelligence cycle, common myths, threat actors such as cybercriminal groups, APTs, and hacktivists, and the central role of modeling and attribution. The focus is on moving from repeating labels to performing real analytical work supported by structured reasoning. The second part explores the role of artificial intelligence in CTI. AI can accelerate analysis, helping classify and prioritize information at scale, summarize reports, extract TTPs from text and telemetry, correlate indicators through semantic similarity, and assist analysts through intelligent agents. At the same time, the book examines its risks, including hallucinations, adversarial manipulation, sensitive data exposure, and model supply-chain vulnerabilities. The approach is practical: it covers the collection and normalization of observables, enrichment and scoring, graph-based correlation, and intelligence sharing through standards such as TAXII. It also explores tools and platforms commonly used in CTI, including MISP, OpenCTI, and Yeti, as well as sources such as OSINT, the dark web, and messaging platforms, combined with defensive telemetry and workflows. Designed for CTI analysts, SOC teams, threat hunters, IR/DFIR practitioners, and cybersecurity professionals, the book also targets AI and ML specialists who want to apply AI to CTI with rigor, governance, and security. It provides a roadmap for turning signals into decisions and building CTI capabilities that remain robust as threats evolve.
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Giveaway - Our instructor-led advanced bootcamps for sharpening your Red Team skills start this weekend. Attacking and Defending Active Directory - Advanced Edition (CRTE) starts this Friday. Advanced Windows Tradecraft - Evasion Techniques for Red Teams (CETP) starts this Saturday. I am giving away one seat for each of the bootcamps. To participate, please Follow @nikhil_mitt and @AlteredSecurity, Like, Comment and Repost. We will announce the random winners on Wednesday. alteredsecurity.com/bootcamp… #RedTeam #Evasion
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🏆 CTF de ProtAAPP finalizado Enhorabuena a los ganadores STesla, 90n20 y rmartinsanta. Gran nivel en esta edición del CTF de #RootedCON 👏 Puedes consultar el ranking (Top 20) aquí: 👉 github.com/ProtAAPP/CTF/blob… #CTF #ProtAAPP
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Giving away 2x full access packages: Linux Attack, Detection & Forensics v2.0 - Hands-on Purple Teaming Playbook + 90 days PurpleLabs VPN access To enter: ✅ Follow me ❤️ Like this post 💬 Comment 🔁 Repost Winners announced March 22nd 🎯 First time doing this, let's see how it goes 😄 edu.defensive-security.com/l… #linux #redteam #blueteam #dfir
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Proud moment at @rootedcon 🚀 A few of us from @freepik just landed on the leaderboard of the @intigriti Live Hacking Event — and even got an extra bonus for making it there! Always fun to push skills together with the team. @alvarodh5 @Julioxus @bertrandlorente
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⏳ Recordatorio: el CTF sigue abierto 🚩 Todavía puedes enviar soluciones y sumar puntos en el ranking. 🏆 Flipper Zero, Raspberry Pi 5, entrada a la Hacker Night, entre otros... 🕖 Cierre hoy a las 19:00 👉 github.com/ProtAAPP/CTF/blob… #CTF #Ciberseguridad #RootedCON #ProtAAPP
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Pre-built Jailbroken iOS 26 iPhone fully runs on VM✨ Full virtual iPhone ready-to-run jailbroken iPhone (rootless + Sileo + Filza + TrollStore vibes). Just download, Test tweaks, exploit PoCs, and debug without touching your daily driver.😗 16 GB+ RAM recommended
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🔥 ACTUALIZACIÓN CTF - Día 5 Sólo 3 participantes han conseguido resolver los 15 retos: 🏴‍☠️ rmartinsanta 🏴‍☠️ 90n20 🏴‍☠️ STesla ¿Vas a dejar que su nick quede solo en el Hall of Fame de ProtAAPP? 😏 Aún estás a tiempo de entrar en el ranking👇 github.com/ProtAAPP/CTF/blob… #CTF#RootedCON
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🚨 Seguimos el CTF… ¿te atreves? Retos divertidos de criptografía, OSINT, forense, esteganografía y seguridad web + Escape Room final 🔥 🏆 Flipper Zero o Raspberry Pi 5 ⏳ Online hasta 6 marzo - 19:00 Enlace al CTF 👇 github.com/ProtAAPP/CTF/blob… #CTF #Ciberseguridad #RootedCON
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Ahora que viene lo de las #VPN, quizá viene bien recordar este hilo. Olvidad las VPN de pago, y usad el tier gratis de Google Cloud para montar un #WireGuard. Si interesa, ponlo en los comentarios y hago un mini-manual!
🛟 Vamos que llevo 1 día de retraso (al menos con esto, con el de serie voy para 50 tacos) 🔒¿VPN privada o VPN de pago? Desde mi punto de vista un profesional de la ciberseguridad debería optar SIEMPRE por la CONFIANZA ZERO. Por tanto: VPN mía e ya. Dentro hilo 🧵⬇️
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