Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing production-ready open source Relayers and Monitor. Discover new features, and our expanded open ...

The platform for developing, deploying, and operating smart contract projects.

Announcements Products

After the fun we had with last year’s Ethernaut hacking game, we’re releasing EthHunt, a new game...

Events

The OpenBazaar team asked us to review and audit their Escrow contract, one of several in their...

Security Audits

These are great times for smart contract development. The pieces for Ethereum 2.0 are coming...

Products

A stable, audited, and fully tested package for smart contract development

Announcements Products

Smart contract development is still in its early days. We’re all still trying to figure out what it...

Products

Few applications need blockchains. Distributed consensus makes each computational step very...

Security Insights

In the last article, we noticed that the runtime bytecode generated by the Solidity compiler...

Security Insights

The function body is precisely what the function wrappers detour to, after unpacking the incoming...

Products

We saw how the function selector acts as a hub or a switch of sorts in our BasicToken.sol contract....

Security Insights

The Transaction Permission Layer protocol (TPL) is a method for assigning metadata (herein referred...

Products

William Hinman’s recent statements at the Yahoo Finance All Markets Summit provide some guidance...

Security Insights