Kyeson Utley
Founder, GhostKey Development · Texas
About
I build security-critical systems and then try to break them before anyone else can.
I'm the founder of GhostKey Development, a Texas engineering firm that takes on the hard end of security work: post-quantum cryptography, cryptocurrency and custody systems, and full-scope penetration testing run entirely in-house.
Before GhostKey, I spent years in blockchain forensics, tracing stolen crypto for fraud victims at SpookyGood, the firm I founded in 2020. That work taught me how systems actually fail: through key handling, operator mistakes and the gaps between components, not broken math. GhostKey is built on that lesson.
GhostKey Development
GhostKey is a small, senior engineering firm. Every system we ship is attacked in-house first, and we bring the same offense to client systems.
Migration planning and lattice- and hash-based implementations, built ahead of harvest-now-decrypt-later.
Protocols, custody, settlement and smart contracts, designed and audited for adversarial conditions.
Web, cloud, network, mobile, smart contracts and source code. Aligned to PTES, OWASP, MITRE ATT&CK and NIST SP 800-115. Methodology
Senior technical leadership on demand: architecture, security posture and roadmap.
Free tool: the GhostKey passphrase generator creates strong passphrases from the EFF wordlist, entirely in your browser.
Notes
- "Later" already started: why post-quantum migration is a deadline
- Sole custody is a story: what I learned tracing stolen crypto
More at GhostKey's Field Notes.
Background
Contact
Engagements: contact@ghostkey.dev
Elsewhere: LinkedIn