Secure Interactive Media Interface Definition (SIMID)

The IAB standard for interactive video ads that runs creative in a sandboxed layer over the player, replacing the interactive role of VPAID.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

The Secure Interactive Media Interface Definition (SIMID) is an IAB standard for interactive video ads that runs creative in a sandboxed layer over the video player. It replaces the interactive role of VPAID while keeping ad code separate from the player, improving security and performance, and it is designed to work with server-side ad insertion.