Automated Solution Response
It can be found in the mainframe terminal from Vault 11.
Congratulations, citizens of Vault 11! You have made the decision not to sacrifice one of your own. You can walk with your head held high knowing that your commitment to human life is a shining example to us all. And to make that feeling of pride even sweeter, I have some exciting news. Despite what you were led to believe, the population of Vault 11 is not going to be exterminated for its disobedience. Instead, the mechanism to open the main vault door has now been enabled, and you can come and go at your leisure. But not so fast! Be sure to check with your overseer to find out if it's safe to leave. Here at Vault-Tec, your safety is our number one priority.