Guardian of the threshold.

Kysira builds Argus Defense, a reverse proxy that reads every HTTP request, scores it in about 40 milliseconds, and cuts hostile connections before they reach your stack. One container, no code changes, no new agents.

We are security engineers and AI researchers who got tired of watching the same attacks top the breach charts year after year while defenders stayed stuck in reactive mode. Argus Defense is our answer: move the kill decision to the machine, keep it on the hot path, and get the attacker's terminal to die mid-payload.

The name comes from the Greek Kyrios (authority over) and Thyra (door, gate). Put together: guardian of the threshold.

Company info

Registered name
Kysira Corporation
Registered address
251 Little Falls Drive, Wilmington, DE 19808, New Castle County, United States
Operations
Salt Lake City, Utah, USA
Business email
support@kysira.ai
Website
kysira.ai

See an attack die in under 100 milliseconds.

The fastest way to understand Argus Defense is to watch it work. No account, no sales call: the live monitor is open to anyone.