Latest Ethereum News

Saddle Finance Hacked For $11 Million USD Loss

Saddle Finance is no stranger to hacks. They’ve already been hit before, under somewhat suspicious circumstances. This time around, though, it looks like a plain old fatfinger by the developers. Saddle Finance was hacked today, 4/30/22, for the loss of 3,933 ETH, worth over $11 million. The swap between sUSD and saddleUSD-V2 did not use

Concentrated Liquidity: Uniswap V3 Overview

In Decentralized Finance, protocols live and die by liquidity. Billions of dollars are thrown around trying to manage and direct it. There are entire protocols that only exist to manage liquidity. For much of DeFi history, there was only one answer when it came to efficient swaps for large amounts: Curve. That changed with the

Breaking: Bored Ape Yacht Club Instagram Hacked, 100+ NFTs Lost

In the time-honored tradition of Bored Ape Yacht Club holders losing their shirts to scams, another hacker has managed to fleece the masses. There’s a twist this time, though: the official Bored Ape Yacht Club Instagram was compromised. The attacker posted a link to a fake BAYC Metaverse land drop, and hoovered up NFTs from

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Vyper for Beginners — Dynamic Arrays

Welcome back to Vyper for Beginners! This lesson covers dynamic arrays, a key data type that was recently introduced with Vyper 0.3.2. This builds off the previous lessons, so please review the series below if you need a refresher or encounter anything here that is unfamiliar. NOTE: Vyper 0.3.3 was recently released, which fixes a

AkuDreams Griefed: Careless Code Leads To $45 Million Locked

Refundable auctions are a hot topic today on Twitter. There was the wildly successful Anata NFT drop… and then there was the AkuDreams auction. The auction required users to transfer funds with their bid, and allowed them to claim a refund afterwards if the Dutch auction price dropped below their bid. However, a bug in

Permisionless Money Markets: Fuse Protocol Overview

Virtually all lending/borrowing protocols are permissioned. Governance or developer intervention is required to support new tokens, etc. There is an important exception to this rule: Fuse. In this article, we’re going to to cover a high level overview of the Fuse protocol ecosystem. Buckle up, kiddos. We’re going on a trip. First, a bit of

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Vyper for Beginners — Interfaces

Welcome back to Vyper for Beginners! This lesson covers interfaces, the primary gateway that your smart contract will use to share data with other deployed contracts on Ethereum (or compatible blockchains). This builds off the previous lessons, so please review the series below if you need a refresher or encounter anything here that is unfamiliar.

What Is An ERC-1155 Token?

There’s a lot to keep up with in crypto, and token standards are no different. The industry is still young, and best practices are still evolving. You may already be familiar with the ERC-20 fungible token and the ERC-721 nonfungible token (NFT) standards. But wait, there’s more! What is an ERC-1155 token, and why do

How To Manually Revoke Token Approvals Without Etherscan

I recently did a guest post for the BowTiedBull Substack, diving into how tokens work and common user pitfalls. One of the most requested followups was how to manually revoke token approvals without Etherscan, in case one of the helpers like Etherscan’s approval tool or Revoke.cash went down. The answer to that question is simple,