IMAGES INSTAGRAM
Emilia Clarke took drastic measures to prevent spoilers from leaking on the set of "Secret Invasion."
She removed the SIM card from her phone to avoid accidentally sharing information.
The level of protection around the project made things easier for her compared to "Game of Thrones."
Clarke expressed fear of potential consequences if she revealed any details.
IMAGES FROM INSTAGRAM
She discussed her experiences during a roundtable discussion with the cast of "Secret Invasion."