Former Ethereum core dev at @ErigonEth. Created @otterscan. Sometimes shitposter

Sao Paulo, Brazil
Joined January 2020
[1/6] Long story, short: introducing Otterscan, an open-source, blazingly fast, laptop-friendly, @ethereum block explorer built on top of @ErigonEth 🦦
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
Has anyone spun up a @Polymarket on whether Flavio Bolsonaro is still in Brazil?
The Argentine 🇦🇷 government denied that Flávio Bolsonaro had crossed into Argentina to escape via a private flight to the U.S. The National Migration Directorate has no record of Flávio Bolsonaro entering the Argentine Republic, according to an official statement from the Presidency. Presidential spokesperson Adrián Ravier maintained that there is “no request for asylum” from Bolsonaro. He also took the opportunity to mention that in 2023, “when Javier Milei was elected president, there was no gesture from President Lula to congratulate him personally or anything of the sort,” and that, consequently, “for the time being, there will be no statement” from the government regarding the outcome of the Brazilian elections. The suspicions about Bolsonaro's crossing into Misiones arose from an investigation by the Brazilian Federal Police, which suggested that one of the passengers might have been Flávio Bolsonaro—who is currently prohibited from leaving Brazil—as reported this Tuesday by the newspaper O Globo.
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I've read this tweet's first line and had an heart attack for one sec
An internal model at OpenAI has produced a claimed refutation of ETH! Russell Impagliazzo, Mohan Paturi, and I have been asked to help organize an open and independent examination of this claim. 1/4
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estava assistindo ao vivo e achei engraçado, imaginei alguém berrando no estúdio e eles correndo durante a vinheta para fazer a pose de apresentação que ensaiaram como se fossem os Power Rangers
eles são performáticos demais pra que todos nessa pose em fila?
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some think AI took his job when actually he used AI to retire early and have fun, that’s how you use it 😄
going to be sharing my WoW forever shaman build at the AIE Code closing keynote
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give us the full traces or FUD
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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no surprises here
JUST IN: 🇧🇷 Brazil's stock market suspends trading due to circuit breaker.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
Feeling really bad for the @Tailscale folks Lots of people have no idea how it works, that it's more than just Wireguard, the policy and ACL capabilities, that SSH isn't even on by default... It is wonderful software that someone crapped on, and now everyone wants to roll in it
if you install Tailscale and your impression of it is "wow this is cool!" and not "oh shit, this is just a centralized SSH honeypot?" you're ngmi
Readers added context they thought people might want to know
Tailscale is a peer-to-peer WireGuard mesh VPN; its control server coordinates keys/policies only and sees no traffic. Tailworm report details bugs in optional SSH after prior authorized compromise, not a "honeypot". tailscale.com/docs/concepts/… tailworm.com thehackernews.com/2026/10/unpatc… tailscale.com/docs/features/…
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
Esse é o pensamento de todo brasileiro decente no momento
Abri um vinho para comemorar o fim da familícia. Agora é torcer pro outro ir de base logo e Dr. Geraldo assumir.
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me trying to get rid of politics on my timeline. glad it ends today.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
Lmao people spotted Thariq leaving Anthropic early by checking if his Google Workspace email still existed.
Replying to @trq212
also can someone at gmail make it so you can't scan for deactivated email addresses 🫩? I was hoping for a relaxing Friday night
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the dog ate half the guy
Replying to @toninho_ad
Primeira coisa que eu viiii
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
In light of the issues with 8037 and 8038, I realized I don't post my opinion publicly as much as maybe I should 😅 so personal retro: tldr; I really don't like these EIPs. They only allow us to increase gas limit without solving the fundamental problem of ever an growing state.
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the world after AI models find all security vulnerabilities from all software manually written in the last 30 years we considered safe and they get fixed or rewritten in rust by AI agents by the end of 2026
So basically, today PHP got two critical bugs that let anyone run code on your server without even logging in, which is bad, and then the details leaked before the patch was even out, which is worse, and it works on WordPress and MediaWiki and Magento and Joomla and Laravel, and Censys says like 1.5 million servers are running a version with no fix, so the NSA was like "take your system offline," and the FBI was like "take your system offline," and CISA and the UK and CERT-EU were all like "take your system offline," and then the Prime Minister of Japan, the actual Prime Minister, posted at 5:55 in the morning telling 48.8 million people to take their system offline, so everyone took their system offline, like the Dutch cybersecurity agency took its own website offline, and the Dutch parliament went offline, and the Port of Rotterdam went offline, and Finland and France and Denmark started pulling government sites, and Wikipedia went down, and Archive.org went down, and Asana and GOG and Something Awful went down, and the University of Vienna's webmail went down for some reason, and that's just PHP. Because GitLab also dropped a CVSS 10.0, which is the highest score they give out, for a bug that's been there since 2014, so that's every self-hosted GitLab for twelve years, and then LiteLLM 1.107.0 got hijacked and shipped a credential stealer and a remote access trojan in every single wheel and the Docker images, including latest, and you didn't even have to import it, just installing it was enough, and it's the second time this year, and then Railway paused every deployment on the entire platform because someone got into the environment variables, so now everyone has to rotate every secret they've ever stored there, and TiDB Cloud said someone was walking around inside with stolen credentials for basically a month and an extortion group says they took 10.6 terabytes, and Zeabur got breached for the second time in two months and is just shutting down, like the whole company, and Node.js patched remote code execution and a TLS bypass, and CISA says Plex is being actively exploited, and someone took over 300 Tor exit relays to steal SSH passwords, and SafePay ransomware has hit over 600 critical infrastructure orgs, and India's biggest bank filed a data loss incident, and Japan has been in an official state of emergency in cyberspace since October 9, which honestly explains the 5:55 AM post. Oh, and eMudhra, a certificate authority that's issued over 60 million certificates, whose entire job is proving websites are who they say they are, was supposed to be using private keys that are random numbers over a hundred digits long, and one of them was 4. Just 4. And the others were like 66 and 237. Anyway, it's Wednesday.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
-----BEGIN RSA PRIVATE KEY----- 4 -----END RSA PRIVATE KEY-----
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
How on earth did this happen: The Indian certificate authority (CA) eMudhra had one job (well, two): 1. Create secure, 384-bit private keys 2. Store these securely and do not leak them Well, eMudhra chose private keys between 1 and 256 (the numbers!!) and called it a day. WTF
I don't really understand why this would happen. It seems higher-effort than standard key generation.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
‼️ BREAKING: The private keys of 8 certificates from Indian certificate authority eMudhra were compromised, Mozilla says. Firefox blocked them within 3 hours. Each key should be a 116-digit number, but one was just 4. Anyone can guess them and forge HTTPS certs for any website.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
Make sure Microsoft Edge and Google Chrome have the latest component to protect yourself. Visit emudhra.we-have-a-problem.co… and make sure the result says `✅Did not connect` If it doesn't say that, then visit "chrome://components" and click "Check for update" for "CRLSet" Microsoft Edge -> 6498.2026.10.20 Google Chrome -> 10849 Then you will be safe from the compromised TLS certs.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
Replying to @nixorokish
For some reason a lot of people think every ethereum address is an "Etherscan account" 😅 and while i cannot comment or share on subpoena's we receive... We do track public node ips. So 'if' we received a request for a historical node ips, we would point them to our node tracker or similar. But Again, this is open information which anyone running a node can track and store. And once you have the public node IP and with a proper court order, one could get an ISP to disclose the corresponding user at that point of time.
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Willian Mitsuda (☕, ☕) 🦇🔊 retweeted
I keep seeing people rt the claude-gzip tweet saying "oh this was so obvious, look they are discovering, this is what I do since 1942" meanwhile completely missing: - large conversations have thinking signatures + images in b64 which are high in entropy = compression is not that efficient anyway - rest would be hit or miss considering gzip adds latency on both sides => if you have decent bandwidth it might just hurt instead of helping - rep. HTTP requests where you send entire transcripts is a horrible method of exchange, needlessly O(N^2) - more importantly, since they have `store: true` implemented for API, just not OAuth, they clearly know how to optimize it just fine > look at this [horrible] thing they just implemented! i would have implemented [horrible+1] on day 1, smh they are learning the fundamentals like shut up man 🤣
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Tried to use new shiny new AI Google connectors to remove a recurrent event from my calendar, but only from today. Spoiler: it feels both were a little rushed and lacks polishing since this is a quite common workflow. Claude: can't do it. after harassing it, it admits it is possible to do it in Google Calendar UI's, but Claude connector can't do it, only all or nothing. ChatGPT: did it one shot, but it also removed yesterday's occurrence. After I noticed that and harassing it, it admited "I'm absolutely right" and fixed it.
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