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With season 5 of Orange is the New Black having been held to ransom at the weekend, it's understandable that networks are trying to take every possible precaution when it comes to preventing leaks.
Scripts are particularly high priority and, if compromised, could reveal every plot twist and turn of a season months and months before it is aired.
"They've definitely tightened up who has scripts and how we're given them," Nathalie Emmanuel, who plays Missandei in Game of Thrones, told Fabulous magazine. "You have to look at it digitally."
She explained of the protocol when it comes to scripts both on set and in advance of filming: "They won't send it to us unless our emails have a two-step verification [security process].
Game of Thrones season 7 photos
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"You might get given rehearsal notes on set, but you have to sign for and return them before you leave.
“If you don't, people will chase you until you give them back!"
Game of Thrones has managed to keep its scripts under wraps thus far, but several episodes have found their way online days before the official broadcast.
The show's seventh season begins on HBO and Sky Atlantic 25 June.
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