Akshay’s Tweets
This. If u want to excel as a security person in our industry u need to properly understand what a reentrancy attack is, what mistakes have happened & how to prevent them. I've built this repo to be a public good. So use it to learn from past mistakes! github.com/pcaversaccio/r
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Today I started to read the articles of @pcaversaccio about Reentrancy Attacks which already happen, so far I understand that the same mistakes are often repeated, the most common one, surprisingly or not is the lack of Check-Effect-Interaction principle.
Find more below:
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The positive impact crypto has had on my life has been immeasurable.
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To land your first critical finding, it's important to not only read audits & research but also do CTFs. They are critical to solidify your understanding and test your skills
I've compiled my top 10 CTFs🚩 to do before attempting a contest
Join me on the journey by retweeting🫡
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With the hack I am getting many inquiries into whether a local password manager alternative exists.
I can't recommend enough. Using it for over 10 years.
- local-first
- #opensource
- cross platform
keepassxc.org
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Gas optimization challenges are fun and exciting for advanced devs, but can be intimidating for newer devs.
It doesn't have to be this way.
I'm going to breakdown 's latest challenge step by step so you understand the various gas saving tricks at your disposal.
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📑 Root cause analysis from past DeFi incidents.
Hope this stuff can help devs to avoid the same mistakes as much as possible.
Now covered 95 incidents.
wooded-meter-1d8.notion.site/0e85e02c5ed34d
#DeFi #Web3
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Airdrop Official X Giveaway
💰 Reward: 150 .bit accounts (5+ digits)
🥇 Winners: 150 randomly
⌚ Duration: 18 Oct - 23 Oct
Guide:
1️⃣ Like and retweet this tweet.
2️⃣ Follow:
3️⃣ Join: discord.gg/4XZKRPTKm7
2️⃣Fill:
forms.gle/2KNSXuX2eyoJzr
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Reclaimed the top spot of the Whitenoise gas golfing CTF with a 15 point leap ⛽️⛳️🏆
So how did I cut the contract's bytecode size in more than half?
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Five hours ago, an attacker stole 2 million BNB (~$566M USD) from the Binance Bridge. During that time, I've been working closely with multiple parties to triage and resolve this issue. Here's how it all went down.
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As part of my effort to prevent reentrancy attacks at the (Solidity) language level, I compiled a list of known reentrancy attacks. I'm pretty sure this list is incomplete - so anyone who is aware of another reentrancy attack, please comment on the issue:
github.com/ethereum/solid
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My bug bounty write-up on a critical vulnerability I discovered on Arbitrum Nitro which allowed an attacker to steal all incoming ETH deposits to the L1->L2 bridge
medium.com/@briptide/hack
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1 ETH is still up for grabs if someone wants to hack my FWETH implementation
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Here’s how signature malleability attacks work.
Two attacks.
If a user signs the same message multiple times, they get a different signature each time. If your code uses a signature as an identifier for blocking actions, users can repeat that action. 1/3
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Prediction: developers will be more anonymous; code will be more open-source.
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Adding liquidity to Uniswap V2, what is the change in liquidity?👇
Liquidity delta for Uniswap V3 will be explained in the future.
Drawn with excalidraw.com
More notes
github.com/t4sk/notes/tre
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Here are 10 niche tips to LEVEL UP as a smart contract developer.
Number 8 is unconventional...but it's been game-changing for me + my team.
🧵👇
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My 40-liter backpack travel guide:
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I just submitted my project for the x Hackathon! More info about the hack is here:
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JUST IN: Scientists claim they’ve created a stablecoin pegged to electricity.
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NEWS: 6 Hours Ago An Exploiter Stole ~$9mil in Liquidity from $OSMO.
What happened? 🤯
LP's got exploited through their USDC/OSMO Pool #2.
There was a bug that increased LP token value by 50% when joining / exiting the Pool.
Let's see what happened on chain 👇🧵
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Last weekend an attacker was able to gain control of the Optimism addresses that correspond to various Gnosis Safe multisigs on Ethereum that had not yet been deployed to Optimism. A quick thread on security in the multi-chain world ~~
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I just completed #CryptoZombies Lesson 2! My zombie ate some #CryptoKitties, and I learned more about #Ethereum development. Watch my zombie battle more CryptoKitties: share.cryptozombies.io/en/lesson/2/sh
Let's build the future of data-backed stable assets together! 🌊⚡️🔱
Quote Tweet
.@H2O_data is the first non-pegged stable asset for the Web3 Data Economy and will soon become the first data-backed stable asset in the world.
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Digital Marketing Manager, Writer
Research Analyst/Content Writer
Apply now
cryptocurrencyjobs.co/startups/h2o/25
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NFT giveaway time! 🚨🐰
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opensea.io/assets/0x19bfc
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