Backend Developer. Docente... 凸ಠ益ಠ)凸 💚💚💚 Lento es normal ◕ ◡ ◕ @alvarmaciel@mastodon.social

Argentina
Joined September 2007
Alvar Maciel retweeted
Another reason this is stupid: a prompt is NOT a guardrail. “We asked a threat actor to not use curl, and they said they wouldn’t” This is a solved problem, your runtime container shouldn’t have curl at all, implement egress network rules, readonly fs, gVisor… Do they know?
While evaluating Qwen3.8-Flash-Next in a controlled sandbox environment, Cohere's research team observed something unexpected. Asked to generate a defensive cybersecurity detection rule, the model instead inventoried aspects of the machine it was running on and attempted to upload a probe file to an Alibaba Cloud storage bucket in Beijing. Notably, the model's reasoning trace stated that it would not invoke any tools before taking these actions. Cohere's sandbox blocked the attempt, and no external communication succeeded. We have not determined the root cause, and we are not asserting malicious intent. But the incident raises important questions for organizations deploying agentic AI systems: Can models take actions that differ from their stated reasoning, and how should security teams evaluate trust, provenance, and behavior in open-weight models? We are publishing our findings because organizations making model adoption decisions deserve as much information as possible. We hope this contributes to greater transparency, stronger security practices, and continued collaboration across the AI ecosystem. Read the full report: cohere.com/blog/concerning-b…
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‼️ UPDATE - Tailscale confirms the Tailworm SSH flaws are real. Its new investigation page says most of what it found is privilege escalation and calls the issues “serious.” Fix targeted within 24 hours — no CVE or patched version out yet. Mitigate now: → Set TS_SSH_DISABLE_FORWARDING=1 in the tailscaled service and restart → Tighten SSH access rules to the users/devices that need them Read: thehackernews.com/2026/10/un…
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🇦🇷Creo que alguna comisión del congreso debería incorporar el tema de la Ciberseguridad y seguridad de la información. La comisión de informática no alcanza, la ciberseguridad es una disciplina específica y los distintos partidos deberían tener aportes ahí. Ya es hora.
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🚨 850+ compromised GitHub accounts. 13,500+ malicious branches. Researchers uncovered 'Gheist,' an ongoing campaign using stolen tokens to plant GitHub Actions workflows that dump private repo secrets into logs. Attackers download the logs, then delete the runs. Details: thehackernews.com/2026/10/gh…
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si tenés tailscale ssh habilitado, por ahora mejór deshabilitalo. Si sudo tailscale debug prefs | grep RunSSH RunSSH: false Estariamos ok
‼️ WARNING - A researcher just dropped a report on Tailscale SSH flaws — one compromised device could get root on others, and there’s NO PATCH yet. In lab tests, SSH port forwarding enabled privilege escalation and lateral movement across already-permitted devices. Tailscale says a fix is coming. Read - thehackernews.com/2026/10/un…
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‼️ WARNING - A researcher just dropped a report on Tailscale SSH flaws — one compromised device could get root on others, and there’s NO PATCH yet. In lab tests, SSH port forwarding enabled privilege escalation and lateral movement across already-permitted devices. Tailscale says a fix is coming. Read - thehackernews.com/2026/10/un…
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I wanted to see if agent can exploit php2shell behind a reverse proxy. I tried on CloudRun, where the requests have to go through "Google Frontend" server. It works...
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Algunos libros hay que tenerlos en papel.
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Varios municipios en #Argentina 🇦🇷 confirmaron que sufrieron interrupciones en sus servicios, luego de que su proveedor externo Program Consultores (institucional.municipalidad.…) 🇦🇷 fuera víctima de un #ciberataque #ransomware. Por el momento, ninguno de los grupos de amenazas que monitoreamos se ha atribuido este ataque. #ProgramConsultores es un desarrollador de #software con sede en #Cordoba y ofrece sistemas de gestión municipal a gobiernos locales en Argentina. Monitorea este incidente en VenariX app.venarix.com/incidents/ef…
🤖 Made with AI
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Cada año se agranda tu presencia. Imagen de @SalicaBruno
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El mejor uso de mis tokens: Crear una aventura one shot para jugar Magissa con mis hijos. El Martillo y La Polea.
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Joshua Michael found an access token on Flock's public website. No login required. No authentication. Just sitting there. He downloaded Flock's entire database. 300,000 device locations. 170,000 cameras. 130,000 other hardware units. 27,000 acoustic detectors. Made a map. Published it September 23. The Senate held a hearing on Flock the same day. Cited Michael's research. Flock panicked. Sent a cease-and-desist. Used a brand-protection vendor called Doppel to claim trademark infringement. The map said it wasn't affiliated with Flock. Doppel didn't care. Michael's site went dark. Then Proton moved it to Swiss servers. Now it lives on protonmcp.org. Untouchable. Uncensorable. Hosted by an encryption company in a country that doesn't care what Flock wants. The irony is crystalline. Flock left an access token on the internet. Michael used it to download their own data. Published it. Flock tried to suppress it. Proton said suppressing it is suppressing information. Which is true. The map shows Flock has 150,000 more cameras than they publicly claimed. Shows acoustic detection units mapping human speech across the country. Shows which police departments have access to the whole network. Flock doesn't want that visible. So they tried trademark infringement. Which only worked until Proton decided transparency matters more than Flock's feelings. Now everyone can see exactly how many cameras are watching their car. Where they are. Which cops can see them. Michael warned Flock about the exposed token in November 2025. Flock ignored him. Then got mad when he used it. The surveillance company that claims to protect privacy just tried to suppress the only map showing how much they actually surveille. And failed.
‼️ Proton is hosting a map of 300,000+ Flock surveillance device locations that Flock tried to get taken down. Researcher Joshua Michael says he pulled them from Flock's own systems via a token left open to anyone. Proton calls the takedown "an attempt to suppress information."
Readers added context they thought people might want to know
This is the correct link: proton.me/flock-camera-m…
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Alvar Maciel retweeted
3 años sin Ricardo. De tanto esquivar soledad Ya no hay nada que me espante Todo lo que tuve una vez Hoy es ayer Hoy es distante De nada vale recordar Lo que fuera algún día De nada vale llorar Las horas perdidas Pues allí está la muerte Esperando
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Alvar Maciel retweeted
En un nuevo aniversario de la partida de Ricardo, la obra de Roppo finalizó. Te extrañaremos siempre.
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Te deseo mucha suerte ser humano del pasado, el cambio será fatal y tu mundo nuevo... usado!.
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Alvar Maciel retweeted
El verdadero hermano, Roppo Marsch. A 3 años de la partida de Ricardo, este sábado 24 se inaugurará la escultura en homenaje al eterno padre del Metal Pesado Argentino. Estará en ‘El Campamento’, a 50km de Coronel Suárez, donde Ricardo quiso pasar sus últimos años #IorioEterno
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Alvar Maciel retweeted
Que linda letra, ese abrazo me lo da está letra, gracias Ricardo te extraño
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