FYEO

FYEO sits at the intersection of conventional attack-surface monitoring and blockchain-native security. Its core product, FYEO Domain Intelligence, continuously monitors the darknet and known threat-actor sources for exposed credentials and other risk signals, drawing on a database the company says contains more than 27 billion leaked credentials, cracked passwords, and phone numbers. Alongside that, FYEO offers blockchain and DeFi security audit services — code review, logic review, and functionality testing for smart contracts — and FYEO Identity, a free password manager built on private-key cryptography with built-in identity-exposure monitoring.

Founded in 2021 and headquartered in Denver, Colorado, FYEO is a small company (roughly a dozen employees) built to serve enterprises and individuals moving into Web3 and crypto-adjacent infrastructure. That combination — conventional exposure monitoring plus smart-contract audit expertise under one roof — is a narrower niche than most attack-surface-management vendors occupy, and it means FYEO’s addressable market skews toward organizations with meaningful blockchain or DeFi exposure rather than the broader enterprise market.

Public information on FYEO’s institutional funding is limited, and independent, named case studies validating its audit quality or monitoring accuracy were not found; most available detail comes from the company’s own site and standard business-data aggregators.