You will need to run the following command before you can play this challenge:
docker run --rm --env PORT=80 -p 8080:80 squarectf/deanonymization
C5 is an online system and is thus very simple to disable. You just need to login as the Captain Yakubovics. Too bad she’s no longer around to hand you her password.
As luck would have it, you have some anonymized datasets lying around.
WORK_AT_SQUARE(1), PRIVACY_POLICY(1), CODE_OF_CONDUCT(1)