The Technocracy has known for years that vampires exist.

Known Facts
*Vampires drink blood to sustain themselves.
*Vampires are colder than normal humans. This means they show up on heat detecting cameras.
*Vampires are allergic to sunlight.
*Most vampires seek to maintain a masquerade intended to keep their existence secret from the masses. This serves our goals as they keep their existence secret from the masses without our interference.

Protocol
For the most part the technocracy stays out of vampire affairs as the blooddrinkers are not considered a threat to reality and avoid the masses becoming aware of their existence.