Mike Bello

It was gonna be a first one 😁, but I'm so happy with the second place

🧵 The dangerous block.timestamp anti-pattern in Uniswap swaps that silently enables MEV attacks and how to solve it 👇 Most devs think deadlines protect users. In reality, many implementations accidentally remove that protection entirely. - 1/12

Most Solidity developers know transfer()… Very few understand how it can permanently brick a protocol. We just published a full Ethernaut Level 9 walkthrough covering: ⚠️ DoS via revert ⚠️ Unsafe ETH transfers ⚠️ transfer() anti-patterns ⚠️ Smart contract attack design 1/2👇

@code4rena I'm wondering what is going to happen with the reports of past audits after C4 closes?🤔

Thank you to every warden, team, and project for your contributions to securing crypto, and for being part of this ambitious, innovative, hardworking, brilliant community. 🙏

An important update from the C4 team. 🧵

The end of an era: Audit contest platforms are shutting down, the industry is being transformed by AI. Meanwhile, hacks are on the rise to the point where we are witnessing a hack every other day, thanks to AI. Security must be addressed with the utmost urgency in the AI era

🚨 $5.87M drained from TrustedVolumes in ONE transaction. No private key leak. No oracle manipulation. No governance attack. Just 3 bugs chained together. 🧵👇 - 1/7

Ink Finance was hacked due to an access control bug in a function, yeah, this type of bugs still happens in web3. The contract wasn't verified on-chain, even though it got hacked. 1/2

Lanzamos un blog donde compartiremos contenido de seguridad web3, follow Seclat and rt

Banks will only use Virtual Blockchains 🧉 Know why and how recapping our @EthCC 🇫🇷 talk. ✅ Privacy for Users ✅ Transparency for Institutions ✅ Access the Stablecoins Liquidity ✅ 100000% Compliance youtube.com/watch?v=B7EhpT…

¡Adiviné que Seattle y New England se coronaban Campeeones de conferencia Haz clic a continuación para ver el resto de mis pronósticos de playoffs #SBLX #SuperBowlChallenge superbowlchallenge.nfl.com/predictor/shar…

🚨URGENT: Teach your team the basics of Incident Response, before it's too late. It can save you millions in the event of an exploit. Nobody cares until a hack happens. Be different. Huge thanks to @_SEAL_Org for the public resource🫡 frameworks.securityalliance.org/opsec/incident…

ya cayó el pago del CTF de @RollAMate que se realizó en Devconnect Buenos Aires, donde aprendí a usar la #EVVM y además gane dinero mientras lo hacía :D, Gracias al team de la EVVM por el apoyo durante el evento!

Reto 4: registro de una evvm

Listo en el Ctf de @rollamate y @fruteroclub

Crypto Drainers using React CVE-2025-55182 We are observing a big uptick in drainers uploaded to legitimate (crypto) websites through exploitation of the recent React CVE. All websites should review front-end code for any suspicious assets NOW.

actualización del react2shell vulnerability, si tienes algún sitio web usando versiones vulnerables actualiza de inmediato antes de que tu sitio pueda ser atacado. x.com/vercel_dev/sta…

@OpenZeppelin @holajotola Hi, I solved the last 3 Ethernaut challenges, the last one was a hard one. Can I get a job now 😄. I'll send you the link to the transactions in a DM 📷🫡

🔐 Limited edition OpenZeppelin-branded Ledger Nano S Plus 💼 Fast-track interview with @holajotola, our Head of Security Research (Top 5 only) Prove your skills. Show us what you've got. ethernaut.openzeppelin.com

The @summit_defi starts tomorrow - think you can crack these Ethernaut levels and win big? 🧩 UniqueNFT, Forger, and NotOptimisticPortal are live now. Complete one or more levels and bring your solution (transaction hash) to our booth by Friday at 2pm to win ... 👇

La semana pasada asistimos por primera vez al DSS y estuvo cargada de aprendizajes sobre seguridad en web3 gracias al @summit_defi y todos los speakers que compartieron su conocimiento en seguridad para hacer de la web3 un lugar más seguro para todos.

Auditors, put your December plans on hold. @aave V4 is coming.

My first CTF solidity hacking we solved 2 challenges got 8 place :D

now Opsec with @PabloSabbatella @opsek_io at @summit_defi

In the @summit_defi great quote from Alex