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Announcing Contracts 5.0: Our latest major release is full of modernizations and
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FEATURED POST


INTRODUCING OPENZEPPELIN CONTRACTS 5.0


OPENZEPPELIN CONTRACTS 5.0 IS THE FIRST MAJOR RELEASE OF THE SOLIDITY LIBRARY
SINCE 2021, ALLOWING THE TEAM TO MODERNIZE THE LIBRARY AND IMPROVE EFFICIENCY
WHILE KEEPING STATE-OF-THE-ART SECURITY ...

Read More

All Announcements Security Audits Security Insights Products Events Case Study


SECURE IMPLEMENTATIONS & VULNERABLE INTEGRATIONS IN SMART CONTRACTS: ERC-2771
CRISIS MANAGEMENT

Dec '23 saw critical smart contract vulnerability, sparking a community-led
response, exemplifying...

Announcements


COMPOUND CASE STUDY: HOW COMPOUND SECURES ITS PROTOCOL AND USERS

Compound Finance is a permissionless lending protocol that “enables supplying of
crypto assets as...

Case Study


HOW OPENZEPPELIN FOILED A CATASTROPHIC HACK IN A COMPOUND WARGAME SIMULATION

Earlier this year, a group of security experts from OpenZeppelin, Chainlink,
Gauntlet, and the...

Case Study


BEEFY ZAP AUDIT

BeefyZapRouter serves as a versatile intermediary designed to execute users'
orders through routes...

Security Audits


ZK-SNARKS & THE LAST CHALLENGE ATTACK: MIND YOUR FIAT-SHAMIR!

OpenZeppelin recently identified a critical vulnerability during an audit of
Linea‘s PLONK...

Security Insights


ANNOUNCING THE OPENZEPPELIN ZERO KNOWLEDGE PROOFS (ZKP) PRACTICE

With the rise of Zero-knowledge proofs as a prominent technology for blockchain
privacy and...

Announcements


ARBITRARY ADDRESS SPOOFING ATTACK: ERC2771CONTEXT MULTICALL PUBLIC DISCLOSURE

On Monday, December 4th, 2023 at 4 pm ET, OpenZeppelin received a security
disclosure from the...

Security Insights


INCIDENT RESPONSE: STOP LOSS OF FUNDS WITH AN ORGANIZED APPROACH

The primary goal of any blockchain security mechanism is to limit the loss of
funds. The ongoing...

Announcements


SMART CONTRACTS & INCIDENT RESPONSE: INSIGHT ON CURRENT MECHANISMS

Weekly attacks on smart contracts in the blockchain industry have proven one
thing: Audits...

Announcements


OPENBRUSH CONTRACTS LIBRARY SECURITY REVIEW

OpenBrush is an open-source smart contract library written in the Rust
programming language and the...

Security Audits


LINEA BRIDGE AUDIT

Linea is a ZK-rollup deployed on top of Ethereum. It is designed to be
EVM-compatible and aims to...

Security Audits


LINEA VERIFIER AUDIT

The Linea blockchain (L2) is a ZK-rollup on top of the Ethereum mainnet (L1).
The L1 periodically...

Security Audits



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