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 ...

On 2017 we saw a mind-blowing number of crowdsales and ICOs running in the Ethereum blockchain....

Security Insights

We reviewed and audited the US dollar contracts, from the US Federal Reserve team, for our own...

Security Audits

The Element Group team asked us to review and audit their ERC20 Element Token contract. We looked...

Security Audits

Blockchain technology empowers the individual, holding the promise of an open financial system....

Products

The Augur team asked us to review and audit their Augur Core project. We looked at the code and now...

Security Audits

We reviewed and audited the Gnosis multisig wallet contract for our own internal use, and choose to...

Security Audits Solidity Vesting Wallet

As we’re wrapping up EthDenver 2018, the #gratitude hashtag falls short to say thanks to all the...

Events

The Polymath team asked us to review and audit their POLY Token contracts. We looked at the code...

Security Audits

The BABB team asked us to review and audit their Bax Token contract. We looked at the code and now...

Security Audits

The Coinfix team asked us to review and audit their MerchantSubscription contract. We looked at the...

Security Audits

As mentioned in our Development Roadmap Part Two, the Kernel is the foundational layer of...

Security Insights Products

This is the third part of our Ethereum introduction guide. If you haven’t read parts 1 and 2, I...