Tron idled for a few dozen microcycles, allowing his subroutines to defragment.
And then he leapt back into hell.
Doofensmirtz's personal servers loomed over the landscape of DoofOS, an as-yet impregnable fortress halfway between the system's capital and its palace. Such terms were tangential at best to life on the Grid.
Tron plummeted past jagged purple battlements, aiming for a group of invaders harassing a set of Sprites taking cover in a server farm.
DoofOS had become a chaotic battlefield for millions of programs, most of whom weren't even on the same side. Worms and Trojans from malicious actors fought with domestic adware and viruses that were probably cooked up by some User in his basement. Resource Hogs battled Z-Lots for access as groups of perfectly legitimate Basics were attempting to push through the horde.
When the first refugees had shown up, Tron's User had not been surprised. ENCOM's systems were a micromanaged nightmare of task managers and Recognizers most sane programs wanted to get out of before they were derezzed or worse. As outlying DoofOS instances began to see recurring bugs and reports of missing programs, his User had tasked him with investigating what ENCOM was doing. That had led him to the 'Legacy' project.
Whatever 'Legacy' was, it was something big. Tron had informed his user of the small bits of data he could discern, but in recent months ENCOM's security had vastly improved over what it had been in the past. The Legacy OS was deadly, it was airtight, and it had… absolutely nothing to do with the troubles plaguing DoofOS.
The Cybugs had attacked when Tron was out of system. This had left the system Kernel to rally the remaining antivirus against the invasion, a task it had not been built for. The Cybugs had cut deep, and opportunists had leapt.
DoofOS was a system held together with a light baton and a prayer to the fickle Creators themselves. It was the single most chaotic system Tron had ever laid eyes upon- calling it 'unconventional' would be a vast understatement. Most normal systems had some cohesion to their architecture- substructures designed like the buildings Users were familiar with, data flowing in conventional directions, access points placed at convenient locations. DoofOS was a non-Euclidian knot of twisting spaghetti code, data streams branching off from seemingly random nodes and never ending up where you expected them to. A program that didn't know what they were doing could get turned around in the corridors and be lost for hundreds of microcycles.
Despite the apparent flaws in the system, Tron had to admit… it worked. He wasn't aware of what the Users were thinking when designing the place, but against all expectations everything meshed together perfectly. Programs booted on DoofOS hardware had an instinctive knowledge of how to use its byzantine twists and turns to great advantage. Even now the self-contradictory labyrinths of the city-state worked to the benefit of its defenders.
Unfortunately, the problem with a perfect clock no one could understand came when one had to wind it. Alan One had expressed considerable frustration at the code, apparently "breaking into tears" at one point if reports from some Basics were to be believed. The original Creators, despite having used the system for the past several months, rarely saw fit to continue its maintenance. Ceremonies to appease the intermittent and often capricious whims of the multitudinous Creators had become commonplace, though others held insistent and tenacious faith in the so-named Administrator above all who ruled from beyond. The Sprites, of course, generally mocked both such superstitions.
Finally, after a great many cycles and no small amount of frustration on his part, Alan One seemed to have enough of a grasp on the system's architecture to make some changes. Designing a brand new firewall that would work in conjunction with Tron's own security programming would finally give the defenders the fighting chance that they needed, at least until the Swarm departed for easier pickings. They only needed to last for a few more cycles, until a new firewall could be installed; by that time the Cybugs would realize that they would need to expend more energy than they would get from consuming the system down to its last byte.
Tron threw his Identity Disc moments before he landed, sending the razor-sharp wheel through one Bug's black carapace before rebounding off a wall and cleanly derezzing another. Snatching it from the air he charged into the center of the skirmish, using the Disc to block gnashing teeth and clawing limbs.
No one really knew what instance the Cybugs had come from, though once they had captured a few specimens it was not hard to determine how it must have happened. Some ambitious User had given their latest Sprites machine learning; taught them to learn new strategies and adapt to new objectives. Doubtless they had thought it would make a far more interesting End-User experience.
Things certainly did get interesting.
Tron shook off the moment of impiety and dispatched yet another pair of swarmlings. These had been lucky enough to consume a local, judging from the purple light spewing from their maws. The creatures grew, changed, assimilated and adapted to any new programming they came across. They were ravenous, unending, and reproduced themselves with incredible efficiency. They could grow back from a single missed egg of code. What had been meant as a challenging opponent had mutated into the most virulent virus Tron had ever faced.
Not even pausing to glance at the programs he had saved, Tron raced for the next report of Cybug infestation allied Light Tanks had flagged. Alan One had coded him to be a one-man army, compiled him to protect the original ENCOM mainframe from all threats internal and external. He had failed once, and did not intend to fail again.
---
There was a brief moment of respite as Tron compiled the data he had gathered from the battle and transmitted it to his User. He had carved through the hoard with brutal efficiency, wiping out every single instance of the virus, and he had still not made even the slightest dent in the Swarm as a whole. DoofOS had hundreds of thousands of instances, multiple entry points, and he was only one program- even as effective as he was, he could not stand up against the Cybugs forever. Every glitch a User experienced was a failure on his part. Every missing program a moment he had been too late.
>THE INFECTION IN THIS SECTOR HAS BEEN NEUTRALIZED.
Tron sent a short string of code to his User in preparation for the next part of his mission. Neutralizing the infection was only a stopgap measure until Alan One had the firewall up and running. Once established, the series of countermeasures would place the system under quarantine, ensuring that no programs were allowed in or out for a portion of time. External Users would experience this as a period of 'maintenance downtime', giving security programs time to locate and purge remaining Cybugs and allowing for selective defenses the Cybugs could not brute force. This was an extreme measure but the best way to prevent further infection and ensure that every trace of the Cybug scourge was removed from DoofOS.
It would also require thousands of incoming refugee programs to find shelter elsewhere as all I/O Ports were shut down for at least a cycle, if not more.
Could the lives of a hundred thousand programs justify the loss of thousands more?
---
Alan Bradley took a sip of his coffee. The last two months had been among the most stressful he had ever endured, and that included the end of his career with ENCOM, when each passing day increased his fear of 'disappearing'. He would have liked to blame it solely on the horrific abomination that called itself a 'source code', but that was only half of his current dilemma.
DoofOS had experienced multiple cyberattacks over the last several months, and much to Alan's surprise, none of them had originated from ENCOM. It seemed that as the net aged, new and dangerous threats spawned from the chaos of the digital ocean and the twisted minds of console cowboys with nothing better to do than watch the system strain under the pressure. The worst had been the Cybugs, but the opening they had created had been exploited by many. The new firewall would hopefully put an end to that, and keep his employer from pulling the plug on far more than he realized.
Doctor Doofenshmirtz had been a decent enough employer, he supposed. Certainly far more understanding than Dillinger had ever been, although he had to question the man's taste in 'company retreats'. At least ENCOM had given him a few days in the tropics instead of shoving him in the middle of a land still terrified by the invention of the stirrup. Those awful days in the only country to have anti-recognition by the UN were made all the worse with the specter of DoofOS looming overhead.
The last sixteen hours of meticulously attacking a virtual machine with nearly every virus he could think of were starting to wear him down. As the final assault ended in failure, he breathed a sigh of relief. None of his subordinates had been able to crack it themselves, but he'd had to be sure. With a few keystrokes and clicks of a mouse the program he had spent hundreds of hours on sprung to life. He could almost imagine what it looked like in the Grid, protectively wrapping around the I/O nodes in an impenetrable wall of gentle blue light.
---
The Cybug swarm was unusually calm. Tron had expected more of a reaction after being cut off from their quarry, but this virus was nearly impossible to predict. Had it shifted to a more docile state to conserve energy? Were they preparing a final assault?
He shuddered. DoofOS's core mainframe was an island unto itself, a core network at the center of all its instances running across the country. The vast and desolate wastes of the Outland greeted him on the other side of the new firewall; bleak, desolate and craggy terrain made from the collective empty memory of systems the world over; eternally shifting, constant only in its inhospitality.
Tron allowed himself a brief moment of respite. The system was protected, for the moment, and unless the hoard returned with a renewed assault the firewall would be more than enough to isolate the system. This was a difficult decision, but ultimately-
"Help! Help!"
Tron turned his head, already dreading what he was about to see.
A collection of programs were swarming towards the firewall. Mostly Sprites, from the look of them, and a motley sort at that. If one in ten of them came from the same instance he'd finally try that new Energy drink the Pause Break was hawking.
"Please!" The lead program begged, clenching her hands together in desperation. "Let us in!"
"Who are you?" Tron asked, hoping against hope these programs were authorized and he could somehow justify pausing the system break.
"We're refugees, we just got here!" The diminutive Sprite replied, black ponytail bobbing as panic got the better of her. "Please! The Cybugs have been chasing us for days, there's no telling how soon they'll catch us!"
Tron tuned out the preliminary system reports flowing to him; they told him what he already knew. A single horde of Cybugs was approaching DoofOS. Not the overwhelming storm he had feared. But more than enough to devour a band of defenceless refugees long before the system break was complete.
Tron grimaced. For the first time in months, they had a chance to clean out the infestations that had been plaguing them, and to set up a new firewall that could actually protect them. If they took it down, it would take time to raise it again. The Cybugs heading for the walls could be dealt with. But there was no telling how many more might be waiting outside range of detection.
For the system, for the Users, the choice was clear. Nothing could be allowed to endanger the OS.
"Please!"
Tron clenched his hands.
"Hold here. I'll be back."
---
Tron's lightcycle screeched to a halt in front of the mainframe's central I/O tower. He pushed through the doors, barely pausing to present security credentials to the System Monitors before racing for the central throne.
"<Knight Commander.>" The Princess said, looking away from administrative matters. "<I did not expect your presence at this hou->"
"I'm sorry there's no time!" Tron yelled, forcing Princess Java to halt as she processed novel stimuli. "I need an emergency communication with User:Alan_1!"
The tower's central beam changed from red to blue as the transmission began. The Users would know what to do, Tron thought. They always did.
---
Alan snapped out of the daze he had fallen into monitoring the firewall's integrity at the sound of a priority alert. Not a good sign. Steeling himself, he glanced down at the message sent directly to his own phone, passed through 3-factor authentication.
More details would be provided on request, but the initial message was as terse as always.
> An unverified program is asking to make changes to your computer. Do you wish to run? Y/N
[ ] Press "Y"
[ ] Press "N"
There will be a twelve hour moratorium on voting.