PSE Security (Privacy & Scaling Explorations)

4.6/5 Team: 10-20 $

About

PSE Security is the application security team within Privacy & Scaling Explorations, an Ethereum Foundation-supported research lab focused on zero-knowledge and privacy technology. The team reviews ZK circuits and cryptographic implementations for PSE's own projects (such as Semaphore, MACI, and TLSNotary) and for ecosystem teams, publishing its findings openly. As a public-goods effort it does not operate as a commercial audit firm, and capacity is prioritized for ecosystem-aligned projects.

Specialties

zk circuits circom halo2 cryptography public goods

Supported Chains

circom halo2 noir evm generic

Notable Audits

Semaphore MACI TLSNotary

Turnaround

Varies (ecosystem-prioritized)

Team Size

10-20

Public Reports

Yes

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Last validated
Jul 2026