Agent A: A puzzle in disguise

Story Related

This will happen in the same area as Very Very Shh-neaky. Once you're in Ruby's hideout, you need to access her computer and then her emails. When you read the top unread email, you will get a mission to download the file to a USB stick. Purchase the USB stick from the Spy Buy Direct store so you can download it. Once the message has been copied, the trophy will unlock.

If you're having any trouble with the story related parts of the game, please see the Walkthrough Guide provided here: LINK for help/reference.