Chapter 62: The Mole
Finding the leak took Junior five days and a technique that Dojun would have called “elegantly paranoid.”
He didn’t interrogate anyone. Didn’t hire a security firm. Didn’t install surveillance cameras or monitor emails. Instead, he did what programmers do: he wrote a test.
He created seven slightly different versions of a fake Lighthouse progress report—each one containing a unique technical detail that was plausible but wrong. He sent each version to a different member of the senior leadership team, through the internal document system, marked confidential.
Then he waited.
On day three, a tech news site in Shenzhen published an article about Prometheus Labs’ “revolutionary AI self-auditing system.” The article contained a specific technical detail: a reference to “neural mesh verification protocols,” a term that existed only in the version Junior had sent to Director Choi Donghyun, VP of Business Development.
Choi Donghyun. Forty-four. Fifteen years at Prometheus. The man Dojun had trusted to manage the company’s partnerships across Asia.
The man who had been meeting with Nexion representatives for six months before the acquisition offer.
Junior called him into the office at 8 PM on a Tuesday. Donghyun came in smiling—the smooth, practiced smile of a business development executive who had spent his career making comfortable rooms feel even more comfortable.
“Neural mesh verification protocols,” Junior said.
The smile died. Not slowly—instantly, like a light switching off. Donghyun’s face went through several stages: recognition, calculation, and finally, the flat resignation of someone who had been caught by a method he hadn’t anticipated.
“That term doesn’t exist,” Junior continued. “I made it up. And I sent it only to you.”
Donghyun sat down. He didn’t try to lie. Junior respected that, in a cold, distant way.
“How much?” Junior asked.
“Two hundred million won. Plus a VP position at Nexion’s Korean subsidiary after the acquisition.”
“You sold us out for a job.”
“I sold a company that’s going to collapse without its founder. Dojun was Prometheus. Without him, we’re just another tech company with good engineers and no direction. Nexion offers stability. Resources. Scale.”
“Nexion offers a cage. They don’t want our engineers—they want our IP. Lighthouse gets absorbed into their pipeline, stripped for parts, and rebuilt under their brand. Our team gets retained for twelve months, then quietly laid off when the knowledge transfer is complete.”
“You don’t know that.”
“I know how acquisitions work, Donghyun. I’ve watched them happen to every company Dojun-hyung ever competed against. Acquired, absorbed, dissolved. Like sugar in water.”
Donghyun was quiet. Outside the office, the Prometheus floor was emptying—engineers heading home, the cleaning crew starting their rounds, the building settling into its nighttime hum.
“You’re fired,” Junior said. “Effective immediately. Security will escort you out. Your severance will be standard. And the 200 million from Nexion—keep it. You’re going to need it when I tell the industry what you did.”
“You wouldn’t.”
“I won’t have to. This industry is small. People talk. And nobody trusts a man who sold his company’s secrets for a job offer.”
Donghyun stood. At the door, he turned. “You’re going to fail, Junior. Dojun was a genius. You’re just the person he was nice to.”
“Maybe. But I’m the person he trusted. And that counts for something.”
Donghyun left. Junior sat in the empty office and stared at the wall where Dojun had hung a framed printout of his first program—the one he’d written in a PC bang at seventeen, the one that had started everything.
print(“Hello, World.”)
The simplest possible beginning. The promise that something could be made from nothing, that a few lines of code could change the shape of the future.
Junior had four days left. One traitor gone. One breakthrough almost finished. One company that was either going to survive or disappear, and the difference between those two outcomes was sitting in a code editor on his screen, blinking cursor waiting for the next line.
He started typing.