Salvador Mendoza

Security researcher | Payment systems | Trainer & Speaker | Book author | @MetabaseQ R&D team | Free speech doesn’t pay bills: my tweets are my own.

[Iceman @herrmann1001]

This is it.

The Proxmark5 promotional video is LIVE.

Wireless. Modular. UHF-ready. Built from 10+ years of real-world RFID research.

This isn’t just another tool, it’s the one you’ve been waiting for.

Watch it. Then pledge. It's never gonna be this cheap again.

👇
https://t.co/4eSfDurkLM

#Proxmark5 #RFID #NFC #HardwareHacking

[Iceman @herrmann1001]

Everything in the Proxmark3 Iceman firmware.
Every iCLASS, SEOS, Mifare, UL-AES, FeliCa update.
Every late night debugging session.

None of it is sponsored. All of it is open source.

If it has saved you time or taught you something, consider buying me a coffee.

Patreon this week: promo code 82409 for a discount.

https://t.co/jNaIDBOAHd

#Proxmark3 #RFID #OpenSource #InfoSec

[Salvador Mendoza @Netxing]

Any plans for training sessions during or before the event @_TROPICON ?

[TROPICON @_TROPICON]

+15 years in the making.
Now it’s real: Tropicon, April 17–18, 2026 — Cozumel.
Escape the noise, secure the future. #TROPICON

[Salvador Mendoza @Netxing]

@liran_tal Thank you!

[Salvador Mendoza @Netxing]

See you in Vegas?

[Salvador Mendoza @Netxing]

@herrmann1001 :(

[Salvador Mendoza @Netxing]

Thank you @huggingface for all your support.
My bot S1 AI is already up and running to keep informed about the Los Angeles Fire situation using the official information from @LAFD.

https://t.co/CfVpXzh7fO
https://t.co/gycPfH7ekF

[Salvador Mendoza @Netxing]

@LAFD New and simple domain: https://t.co/CfVpXzh7fO

[Salvador Mendoza @Netxing]

𝐈𝐧𝐭𝐫𝐨𝐝𝐮𝐜𝐢𝐧𝐠 𝐒1𝐀𝐈 𝐁𝐨𝐭 – 𝐄𝐦𝐩𝐨𝐰𝐞𝐫𝐢𝐧𝐠 𝐋𝐨𝐬 𝐀𝐧𝐠𝐞𝐥𝐞𝐬 𝐰𝐢𝐭𝐡 𝐂���𝐢𝐭𝐢𝐜𝐚𝐥 𝐅𝐢𝐫𝐞 𝐈𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧

With active fires currently affecting different areas of Los Angeles, timely and reliable information is more crucial than ever.

S1 bot at: https://t.co/AKkyUVCkN0
S1 Hugging Face home: https://t.co/u21vvYuTrJ

Key Features:
- Fire alerts and incident summaries based on official @LAFD information
- Simplified breakdowns of official fire department reports by leveraging official Los Angeles Fire Department (LAFD) reports and making them easier to understand.
- Critical information about fire locations, risks, and nearby resources
- Accessible from any device for instant updates when you need them most

This is a community-driven project aimed at improving public safety. As usage grows, we will continue to enhance the tool and scale it as necessary, ensuring it remains reliable and effective for all users.

If you’re interested in contributing or collaborating, feel free to reach out. Together, we can make a real difference.

Special thanks to @MetabaseQ for the support.

hashtag#AI hashtag#FireSafety hashtag#CommunityProject hashtag#PublicSafety hashtag#LosAngeles hashtag#EmergencyResponse hashtag#TechForGood

[Salvador Mendoza @Netxing]

Thank you for your feedback. Now you can interact with the chatbot, and I already added evacuation maps information from @LAFD

[solst/ICE of Astarte @IceSolst]

Remembering the greatest security blog post + tool of all time: magspoof by @samykamkar

It demos a wireless credit card spoofer that:
•Allows you to store all of your credit cards and magstripes in one device
•Works on traditional magstripe readers wirelessly (no NFC/RFID required)
•Can disable Chip-and-PIN
•Correctly predicts Amex credit card numbers + expirations from previous card number (code not included)
•Supports all three magnetic stripe tracks, and even supports Track 1+2 simultaneously
•Easy to build using Arduino or other common parts

[Seba García @eldracote]

Now in @ekoparty in Room C2, the great @Netxing talking about the security hardware tool “ELMA: EMV Laboratory Middleware Assistant” come and see it!

[Veronica Becerra @veronicabp_]

¿Utilizarias tu tarjeta de banco para pagar el #metro?

Desde hace unos días, los usuarios del Metro de la Ciudad de México podrán utilizar #tarjetasbancarias sin contacto como método de pago en el sistema de transporte.

#Ciberseguridad
#seguridaddigital

[kennbro @kennbroorg]

Charla en @DragonJARCon y final emotivo entre amigos!!!
Más que una comunidad, una hermandad CASI Latinoamericana!!!

@lawwait @Netxing @go2hack @JaimeARestrepo_ @r4wd3r @hpardinas @ForeverWero @Sabasacustico @ulcamilo @jofpin @john_vargas @MauroEldritch
Berenice, Fico, etc

[Salvador Mendoza @Netxing]

Día 2 en @DragonJARCon con streaming!! https://t.co/0x97qLGsrn

Si quieres sintonizar mi charla, será a las 15:00 horas Colombia!

[Salvador Mendoza @Netxing]

Primer día de @DragonJARCon, abriendo con el gran @Alevsk sobre seguridad en Kubernetes!

[Salvador Mendoza @Netxing]

@DragonJARCon Felicitaciones a los ganadores:

- Jose L. de la universidad de Manizales UM
- Maycol A. de la universidad del Quindío

Nos vemos en DragonJar!

[Salvador Mendoza @Netxing]

Eres estudiante y te gustaría asistir a la conferencia de Ciberseguridad mas importante de Colombia: @DragonJARCon este 26 y 27 de septiembre?

Envíame un correo electrónico mencionando el por qué o cómo el asistir a está conferencia ayudaría en tu carrera profesional. Si eres seleccionado, te hare llegar una entrada electrónica gratis para el evento.

Nota importante: El boleto electrónico solo cubre eso, el poder ingresar al evento. Es preciso mencionar que no cubre hospedaje, ni transporte, ni cualquier otro gasto.

Si gustas participar envíame un correo a [email protected]

Solo cuento con dos entradas gratis. Así que aprovecha. Los ganadores recibirán su boleto electrónico a mas tardar este viernes 20 de septiembre.

[Salvador Mendoza @Netxing]

Si enviaste correo para participar en ganar la entrada gratis al evento de @DragonJARCon, es momento de revisar tu correo/spam!