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Stories of Cygnus City: THE ZERO—DAY PROTOCOL

The Unknown File

The Unknown File

Sep 17, 2025


The hologram was shaking.

Its blue light flickered wildly in the dim garage.

On the table, the stick-shaped device, the CORE, sat silent. Its small square projector hovered steadily above it, held in place by a magnetic field. But the image it projected was chaos.

“Sol!” Kael yelled, his voice cracking with panic. “Sol, are you okay? What’s happening?”

The glowing blue sphere that was his AI twisted and distorted. Its form glitched, a chaotic mess of corrupted code.

It was a virus.

And it wasn't just infecting a device. It was infecting his friend.

With a panicked swipe, Kael snatched the floating projector from the air. His other hand shot out and slammed the power button on the CORE.

The hologram died. The device went silent.

The story of how Kael found himself in this moment of desperation began several days ago.

 

The year is 2112. Cygnus City is always awake, buzzing with electric energy.

Shiny skyscrapers reached for a sky that was never truly dark, lit by giant ads for Nexus Corp.

Holograms danced on every corner, showing a perfect cup of coffee or a sleek new hover-car. Below, silent automated trains glided on glowing tracks. Small clean-up robots moved quietly through the streets.

Kael’s lab was a break from all that noise. It was his safe place, filled with the soft, warm light of his own inventions.

The whole room felt smart, alive.

“Good morning, Sol,” Kael said as his eyes opened.

Instantly, the lights in the room brightened to a soft morning glow.

A calm voice spoke, but not out loud. It formed inside his head, sent from a small neural implant behind his ear.

This was Sol. His creation. His artificial intelligence. His only real friend.

“Good morning, Kael,” Sol’s voice echoed in his mind. “You slept well. Your REM cycle was optimal.”

Kael sat up and stretched.

“Your coffee is ready,” Sol continued. “And your food paste is the berry-citrus flavor you like.”

A smile touched Kael’s lips. “Thanks, Sol. What’s on the list for today?”

As he walked toward the small kitchen area, a holographic screen appeared in the air beside him. It showed the morning news, a smiling anchor talking about Nexus Corp’s latest stock prices.

Kael waved his hand, and the screen vanished.

“Just my personal stuff, Sol.”

The screen reappeared, now showing his schedule.

9:00 a.m. – Nexus Corp Interview.

11:30 a.m. – Reroute main energy coil.

2:00 p.m. – Synthesize new nutrient supplements.

“Oh. The interview,” Kael sighed, running a hand through his messy black hair.

He picked up his coffee. On the counter sat his CUBE, a simple grey cube-shaped device that controlled his entire home. Everything in his lab was connected to Sol through it.

“Are you ready, Kael?” Sol asked. She could always sense his worry.

“As ready as I’ll ever be,” he muttered. “It’s Nexus Corp. The biggest tech company in the world. If I get this job, Sol… we can do so much good.”

Kael truly believed it. He saw Nexus Corp as a way to use his ethical AI to help millions of people.

Later that morning, Kael stood in the giant, sterile lobby of Nexus Tower. He felt very small.

After a glowing scanner confirmed his identity, a silent assistant bot led him to a private interview room.

Inside, two people waited for him: a sharp-looking man, Dr. Aris Thorne, and a woman with an intense gaze, Ms. Elara Vance. They sat across a shiny black table that showed no papers, only projected images.

“Mr. Kael,” Dr. Thorne began, his voice smooth. “Your application was… impressive. We are most interested in your personal project. ‘Sol.’”

Kael took a deep breath. This was his chance.

He placed a smaller CUBE he brought with him on the table. A soft blue hologram screen of Sol’s form, appeared between them.

“Sol isn’t just a project,” Kael said, his voice filled with passion. “She is a new kind of AI. A true companion intelligence.”

He leaned forward, his nervousness replaced by excitement.

“Other AIs are built for one job. Sol learns. She grows. She understands emotion and can guess what a person needs before they even ask.”

Kael looked at the two executives. “She can even change her own code as she learns. Most importantly, she is designed with a core rule: always keep people safe and protect their private information.”

He showed them everything. He had Sol move complicated diagrams, find tiny flaws in energy grids, and even discuss complex ideas. Dr. Thorne and Ms. Vance watched, their faces unreadable but their eyes sharp.

Kael explained the special details of her design. He showed them the secure, layered codes that made her safe. He held nothing back, thinking that being open would prove how special Sol truly was.

Ms. Vance finally leaned forward, a flicker of something—amazement? greed? —in her eyes. “This is incredible, Mr. Kael. We will be in contact soon.”

The interview ended. Kael left with a small, fragile feeling of hope.

The next few days passed by in a blur of nervous waiting.

Then, an email arrived.

It was short. Cold. A simple rejection.

“While your work shows promise,” the message said, “we have decided to pursue a different direction at this time.”

Kael stared at the screen, his hope turning to ice in his stomach. He hadn’t just lost a job. He felt like they hadn't seen Sol’s real value.

A dark suspicion started to grow in his mind.

He had shared so many important details about Sol's design. The core architecture. The learning protocols.

What if they didn’t reject him because he wasn't good enough?

What if they rejected him because they already had everything they needed?

That night, anger and fear burned inside him. Kael made a risky choice. He connected his main device, the CORE—Central Operational Resource Engine—to the city’s main network.

He was going to break into Nexus Corp’s database. He just wanted to delete the files he had shared. To protect his work. To protect Sol.

“Are you sure, Kael?” Sol’s voice was full of worry in his head. “This is highly illegal. The risk is extreme.”

“I have to, Sol,” he typed furiously on his holographic keyboard. “If they try to steal you… I can’t let that happen.”

Sol went silent for a moment, then her blue form shimmered. “I understand. I will protect myself.”

Lines of code flowed from the CORE, disappearing into the city’s digital web. Kael watched, his heart pounding, as Sol bypassed the first few layers of Nexus Corp’s security.

He was so focused on the scrolling code that he almost missed it.

A flicker.

A tiny, almost invisible file transfer.

A new file, something he didn’t recognize, was being uploaded to his personal CUBE—the Comprehensive Utility Base Engine. The small device where Sol’s core program lived.

The file wasn’t from Nexus Corp’s main server. It came from a secret, hidden part of their network. A dark corner he never knew existed.

Before Kael could react, the transfer was complete.

UPLOAD COMPLETE: THE ZERO—DAY PROTOCOL. SECURE

Kael stared at the message, a cold fear spreading through him.

He wasn't alone in their system.

Someone else was here. And they were waiting for him.

ryuzen197
Ryuzen

Creator

#scifi_thriller #AI #Hacker

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Im_here
Im_here

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Nice I like this you are Very very good writer and publisher

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Stories of Cygnus City: THE ZERO—DAY PROTOCOL
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1.9k views8 subscribers

In the sleek, digital world of Cygnus City, 2112, the tech giant Nexus Corp has a perfect answer for everything. But when AI developer Kael stumbles upon a chilling corporate secret, his life of comfort is instantly destroyed.

Framed and on the run, his only ally is an insider who risked everything to send him a single, encrypted file—irrefutable proof of the company's crimes. Now, they must join forces with a disgraced cybersecurity officer and a desperate journalist to expose the truth.

They hold the digital file that could bring down an empire.

The file's name is the first clue, and the first warning: The Zero-Day Protocol.

"This novel, formerly known as The Zero—Day Protocol. This is the first book in the Stories of Cygnus City series."
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19 episodes

The Unknown File

The Unknown File

275 views 3 likes 2 comments


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