Should the focus be on or a more traditional spy setting?

Leo froze. The audio was crisp, recorded from the microphone of his own phone. He scrolled through the folder. There were logs for every member of the family. Uncle Jim’s tax records, Aunt Sarah’s private emails, and a live map showing his sister’s current location at the mall. The Mirror

To help me tailor a better story for you, could you clarify:

“I’m telling you, Mom, Marcus is just weird. He never talks about his job,” Leo’s own voice played back from a week ago.

Leo looked at his webcam. The small green light was already on.

A notification popped up on Leo’s screen. A new file had appeared in the folder, synced via the cloud. It was titled leo_discovery.mp3 . Leo clicked it.

Is "Cousinzip" a reference to a specific I should incorporate?

Leo’s pulse quickened. Marcus had always been the "perfect" one—straight As, a high-level government internship, and a quiet demeanor. But "quiet" usually meant "hiding something." Leo plugged in his thumb drive, dragged the 4GB file over, and closed the laptop just as the front door creaked.