Story code: ST-000510
Part 3: Legacy Protocol
“Thirty seconds, Mateo! Tell me what to do!” Marcus yelled over the frantic whine of his overtaxed engine. He whipped his head around, checking the rearview mirror. The matte-black SUV was less than two car lengths behind him now, its blinding LED headlights flooding the Chevy’s cramped cabin and casting harsh, moving shadows across the dashboard.
On the phone still mounted to his air vent, the live map updated with terrifying precision. The pulsing red chevron crept closer, locking onto the blue dot of Marcus’s car.
Mateo’s voice cracked through the speaker, completely stripped of its polished, robotic cadence. “You need a concrete canopy. An underpass, a multi-level parking garage, a subterranean tunnel. Anything dense. You need something that will physically choke your cellular connection just enough for me to inject a corrupt data packet. If your signal remains strong, the main server will just auto-correct the error and keep tracking you.”
Marcus scanned the dark, icy avenue ahead. The suburban landscape was giving way to an industrial commercial zone. A few blocks down, the skeletal concrete structure of the municipal transit center loomed against the night sky.
“I see a parking deck,” Marcus said, his knuckles white on the steering wheel. “Four blocks out.”
“Get inside, but do not slow down,” Mateo ordered. Over the phone, the continuous, two-toned wail of the automated alarms in Mateo’s remote office formed a sickening soundtrack to the chase. “The oversight system just locked my standard administrative dashboard. They know I’m trying to mask your ping. They’re trying to sever my connection to your phone right now.”
Marcus floored the gas pedal. The Chevy shuddered, the RPM needle burying itself into the red zone as he pushed the old transmission past its limits. The SUV perfectly mirrored his acceleration, its massive grill filling Marcus’s entire rear windshield.
“I’m locked out,” Mateo said, his breathing shallow and erratic. The frantic clattering of his mechanical keyboard stopped. “The standard diagnostic loop is closed. I can’t spoof your location anymore.”
“You said you had a way!” Marcus screamed. He yanked the steering wheel to the right, tires screaming against the frozen asphalt as he violently navigated the sharp, angled entrance to the transit center’s parking deck. He hit the incline without braking, plunging into the harsh, flickering fluorescent lighting and thick concrete pillars of the lower level.
Seconds later, the black SUV took the exact same turn, its heavy tires howling against the concrete as it pursued him into the structure.
“I do,” Mateo said. The sound of his keyboard resumed, but the rhythm was entirely different-faster, harder, like a man hammering desperately at a locked door. “But it means completely throwing out the script. SwiftRun moved to a cloud-based neural network two years ago, but the physical server architecture still has a legacy portal. It’s an old backdoor we used to manually unstick driver accounts when the network crashed.”
Marcus weaved recklessly through the empty parking lanes, blowing past thick concrete columns. He glanced at his phone. The GPS map stuttered. The blue dot froze for a fraction of a second before jumping forward. The heavy concrete ceiling was degrading the signal, just like Mateo wanted.
“Do it! Use the backdoor!”
“It’s heavily restricted,” Mateo said, his voice dropping into a hollow, resigned cadence that chilled Marcus to the bone. “It’s not just against protocol. If I route a manual override through the legacy portal, it strips all my proxy protections. I can’t do it anonymously from the help desk. I have to use my direct employee signature to force the system to drop your MAC address.”
Marcus checked his mirror again. The SUV was accelerating down the straightaway of the parking deck, closing the distance. Its headlights flashed rapidly-a physical, aggressive command to pull over.
“Mateo, they are going to ram me,” Marcus said, bracing himself for the inevitable impact of the heavier vehicle. “If you don’t do it right now, they’re going to run me into a concrete wall!”
“If I do this, I’ll be directly tying my physical terminal to your containment breach,” Mateo whispered over the wailing alarms.
An agonizing second of silence passed over the line.
“To hell with the script,” Mateo snarled.
A sharp, decisive crack of an enter key echoed through the speaker.
The effect on Marcus’s phone was instantaneous and violent. The live map of the city didn’t just freeze; the entire screen fractured into a chaotic cascade of raw, scrolling text. The blinding white background of the map inverted to a sickly, terminal green. The red chevron and the blue dot vanished instantly, swallowed by endless, scrolling lines of system error codes.
At that exact second, the black SUV behind Marcus violently locked its brakes.
Marcus watched in the rearview mirror as the massive interceptor fishtails across the concrete, thick plumes of acrid white smoke billowing from its tires. The driver inside had been relying entirely on the digital ping. Without the app guiding them, the SUV slid to a chaotic halt in the middle of the parking aisle, suddenly blind.
Marcus didn’t hesitate. He killed his headlights, plunging the Chevy into darkness, and slipped around a corner, coasting silently down the ramp toward the subterranean exit.
He parked the car in the deep shadows of the exit alley, his chest heaving as the adrenaline crashed through his system. His phone screen was dead black. The app was completely gone.
“Mateo,” Marcus whispered into the quiet cabin. “Mateo, it worked. The screen died. They stopped tracking me.”
On the other end of the line, the wailing alarms in Mateo’s office had stopped. The silence that replaced them was suffocating. Then, a chilling, mechanized voice echoed clearly through the phone’s speaker.
*WARNING. UNAUTHORIZED LEGACY BREACH.*
“Mateo?” Marcus asked, gripping the phone.
“It worked,” Mateo whispered back, his voice trembling so violently he could barely form the words. The sound of his typing was completely gone. “The system… it didn’t just reject the override. It traced the digital signature backward.”
*ADMINISTRATIVE PRIVILEGES REVOKED,* the mechanized AI voice announced over the phone, cold and deafening. *SECURITY LOCK ENGAGED. IMMEDIATE TERMINATION PROTOCOL ACTIVATED.*
“What does that mean?” Marcus asked, his blood running cold. “Mateo, what is a security lock?”
“It means my terminal is frozen,” Mateo said, the terrifying reality of what he had just done bleeding into his words. “It means my employee ID was just flagged with the exact same physical containment protocol that you had. And I’m sitting inside a locked, corporate-leased call center.”
A heavy, metallic thud echoed through the phone speaker, followed immediately by the unmistakable, heavy clack of an electronic deadbolt slamming into place.
“Marcus,” Mateo breathed, staring into a trap of his own making. “They just locked my office doors.”