Introducing OpenZeppelin Contracts v5.1

Smart Contract Security Guidelines #1

The more DeFi layers we integrate and compose, the more careful we need to be. As the stack grows,...

Security Insights

Introducing OpenZeppelin Subgraphs

We are thrilled to announce that OpenZeppelin Contracts will be integrating The Graph’s subgraphs,...

Announcements Security Insights

Introducing the OpenZeppelin Secure Development Series

Our latest speaker series, Secure Development is aimed to help improve security practices for the...

Security Insights Products

Admin Accounts and Multisigs

Best practice for securing admin accounts is to use a multisig (short for multi-signature wallet)....

Security Insights

GST2 Bytecode Deep Dive

Break down of the bytecode and assembly code used by GST2 (Gas Token 2) in order to understand how...

Security Insights

Fundamentals of Gas Tokens

Gas tokens should be minted at a low gas price, and then burnt at a high gas price, thereby saving...

Security Insights

An Introduction to Decentralized DevSecOps

As we build a community of decentralized services for the open economy, we could easily repeat...

Security Insights

The State of Smart Contract Upgrades

The State of Smart Contract Upgrades - 2020 edition A survey of the different Ethereum smart...

Security Insights Products

Flash-Mintable Asset-Backed Tokens

A flash-mintable asset-backed token is an ERC20-compliant token that is: Asset-backed and...

Security Insights

Argent Audit Technical Report

A high-severity vulnerability in the Argent wallet would have allowed attackers to take over...

Security Insights Zero-Day Vuln

DeFi Reflections on Hackers and Viruses

In the wake of the current pandemic and other recent events affecting DeFi, we at OpenZeppelin have...

Security Insights

What is DeFi? An Introduction to Decentralized Finance

Learn about lending, collateral, loan to collateral ratio, protocol tokens, price oracles,...

Security Insights