Notice the security cameras in the penthouse? You need a Blue Keycard to disable them in Payday 3’s Touch the Sky heist.
To complete the Touch the Sky Stealth heist in Payday 3, you need the Blue Keycard to disable several security cameras that are watching every corner of the penthouse.
While exploring the penthouse during the heist, you are likely to come by a Security Camera Room. There is a guard inside who is watching all of the cameras placed inside the penthouse.
If you are going into this mission in Stealth mode, we recommend you get the Blue Keycard, access the security office, and take out the guards watching over everything.