Introducing OpenZeppelin Contracts v5.1

Serpent Compiler Audit

The Augur team asked us to review and audit the Serpent compiler. We looked at the code and now...

Security Audits

Augur REP Token Critical Vulnerability Disclosure

Two weeks ago, we finished our audit of the Serpent compiler and sent it privately to the Augur...

Security Audits

Introducing zeppelinOS: the operating system for smart contract applications

In the early days of computing, writing code into machines was a difficult and inefficient...

Announcements Products

Tierion Presale Audit

The Tierion team asked us to review and audit their Tierion Presale code. We looked at the contract...

Security Audits

Decentraland MANA Token Audit

The Decentraland team asked us to review and audit their new MANA Token contract code. We looked at...

Security Audits

The Parity Wallet Hack Explained

Today, we witnessed the second largest hack, in terms of ETH stolen, in the history of the Ethereum...

Security Insights

Setting Up a Bug Bounty Smart Contract with OpenZeppelin

The effect of having a market cap north of $10 Billion USD is that a growing number of blockchain...

Products

Introducing Zeppelin Solutions

Zeppelin Solutions is a technology company focused on improving blockchain technology, security and...

Announcements Products

Metal Token Audit

The Metal team asked us to review and audit their new Metal Token contract code. We looked at their...

Security Audits

Storj Token Audit

The Storj team asked us to review and audit their new Storj Token (STORJ) code. We looked at their...

Security Audits

The 4 Stages of a Token Sale

Token sales have emerged as a fundraising alternative to traditional venture capital. To this day,...

Security Insights

Handling Crowdsale Funds Securely

When developing a crowdsale smart contract, there are several options for handling the collection...

Security Insights