SIG9. YOUR INFOSEC OCCULTISTS.

Protecting the unseen, securing the unknown.

We are an infosec consulting firm in Zurich.

Schedule a consultation.

Expertise

Software & Infrastructure Design
IT Security Audits, Pentests & Code Reviews
Bitcoin, Blockchain Technology & Web3
Key Ceremonies & Secrets Management
Blockchain Intelligence

Trusted by

Unicrow is the first trust-minimized, censorship-resistant and permissionless escrow protocol.

VAF Compliance is a virtual asset forensic services provider based and licensed in Dubai, UAE.

Neptune is a new privacy and scalability focused L1 blockchain that leverages cutting edge zero-knowledge proof cryptography.

Enso is a unified DeFi API to interact with all DeFi primitives conveniently.

Latest Security Bulletins

November 6, 2026

Hacker Wars - November 06, 2026

Your daily dose of infosec chaos Today’s theme is trust falling apart in interesting ways: a blockchain intelligence firm exposed every one of its user accounts, an email security appliance hands out …

November 5, 2026

Hacker Wars - November 05, 2026

Your daily dose of infosec chaos Networking gear that patches itself halfway, AI that roots Linux faster than you can triage, and White House devices quietly moonlighting as someone else’s proxy exit. …

November 4, 2026

Hacker Wars - November 04, 2026

Your daily dose of infosec chaos Watering holes are back on the menu: a large-scale campaign is hitting iOS and Android phones with zero-click exploits, while a hijacked security-tool updater proves …

November 3, 2026

Hacker Wars - November 03, 2026

Your daily dose of infosec chaos Schools are having a rough week: a UK school estate got ransomed by a crew that may have let an AI model drive parts of the intrusion, and a US education vendor leaked …