Cyberpsychosis

Cyberpsychosis is a mental illness, specifically a dissociative disorder, caused by an overload of cybernetic augmentations to the body.
Background Those afflicted with cyberpsychosis are known as cyberpsychos, individuals who have existing psychopathic tendencies, enhanced by cybernetics, and as a result have lost their sense of identity as a person, either to themselves or others. They come to view regular people and other living things as weak and inferior. With their enhanced physical abilities and complete disregard for life, cyberpsychos are extremely dangerous to anyone that crosses their path. Cyberpsychosis can eventually affect anyone modified with cybernetics, but the less empathetic or psychologically stable a person is, the more susceptible they are to it.
There is no real cure, though treatment is available (see below). The effects are cumulative. A single cyber hand is unlikely to cause cyberpsychosis, but replacement of all four limbs and both eyes could likely start the descent on the slippery slope. The removal of implants can bring a person back to some normalcy, but crossing the line of psychosis will make this measure hardly matter.
Cyberpsychosis symptoms are gradual, ranging from decay of self-preservation, distancing or disregard from friends and family, and poor or impulsive outbursts or acts. They start to identify more with machines than people, and stop doing things that used to give them pleasure (eating, sleeping, socializing, sex, etc). Eventually human interactions become irritating, and this morphs into contempt, and finally violence. Not all cyberpsychos are physically violent. Some have fragmented personalities, some are kleptomaniacs, others are compulsive liars. But violence towards living things, especially people, is most common.
Cyberpsychosis has become a major problem in the technology-saturated world of Cyberpunk. It is actually quite common in many boostergangs, though fairly rare in polite society. Police departments have heavily armed and armored units, called psycho squads, such as MaxTac, that specialize in subduing or killing cyberpsychos. These psycho squads have members of different backgrounds, including former cyberpsychos.
Incidentally the government (and corporations) are not going to wait for you to go over the edge. It is quite common for governments or corporations (often the de-facto government) to track people who are known to install lots of cyberware. This is another reason ripperdocs exist; not everyone wants to be on a government watch list for cyberpsychosis.
By 2077, the occurrence of cyberpsychosis had markedly decreased due to medical and implant advancements, but people still succumbed to it every day. Practically none survived any encounter with police, which usually applied overwhelming firepower to put down the threat regardless of the circumstances, a tactic which resulted in collateral civilian deaths. An expensive drug called baloperidol was a common treatment for individuals believed to be on the verge of cyberpsychosis, but its effectiveness was questionable. Standard practice for corporations who learned one of their own was becoming cyberpsychotic was to have them isolate themselves away from the public and wait for a corporate medical team to sedate them and transport them to a therapeutic retreat, but unknown to the victims, these medical teams were actually hit squads.
Registry and Therapy People who are near the edge are politely asked (that is, required) to register as such. A registered cyberpsycho is on something akin to parole. They must attend periodic therapy sessions to keep them human. They have implants to monitor their activity. So long as they don't do anything dangerous, they can go about their lives as normal.
A cyberpsycho who goes over the edge is often killed outright. Cyberpsychos usually have enough implanted hardware to cause significant damage, and are a threat to anyone they come across. Most police departments will not go out of their way to bring in cyberpsychos alive, as attempting to capture them is much more dangerous and puts bystanders' lives at risk.
But if the psycho can be subdued, they will be strapped down and all of their cybernetics deactivated. They are forcibly jacked into a custom braindance, where a cyberpsychologist (sometimes called a psychoshrink) attempts to piece their personality back together.
Over weeks or months, the cyberpsycho gradually regains their humanity. They may even eventually become human enough to install cybernetics again (assuming they are not in prison for crimes committed on their rampage). But they are never really the same again. Mental damage from cyberpsychosis will change aspects of their personality, and follow them their entire lives.
If someone is to far gone and does heed the warning of help then a cybersquad is called

Psycho squad

A cyberpsycho squad, also known as cybersquad or psycho squad, is a police department division in many countries around the world. In the United States they are also known as C-SWAT teams. Their purpose is to deal with public threats resulting from cyberpsychosis that the standard police cannot handle by themselves. Psycho squads deal with public threats resulting from cyberpsychosis that the standard police cannot handle by themselves. They are armed with the best armor, equipment, and vehicles. Most carry weapons that start at the light cannon range and up. They are, by nature, not very nice people. Cyberaugmentation is so common and extensive to these squads that in fighting fire with fire, many officers end up on the brink of cyberpsychosis themselves. Military and corporate security psycho squads are also known to exist. In situations where such are not immediately available, ad-hoc detachments known as 'heavy details' are sometimes thrown together.
C-SWAT units in Tokyo and other major Japanese cities are particularly noted for their heavy use of Attack AVs, APCAs, and tanks such as the Mitsubishi "Musashi" SWAT Mini-Tank.
History During the 2000s, cyberpsychosis became a serious problem for many countries around the world, especially in heavily populated areas. Although there were therapy options, the hardest part was getting the patient into the psychologist's office. When a metal-armored, cyberboosted maniac started to randomly kill people, the standard law enforcements were not a viable option. With this in mind, governments began creating specialized tactical units to hunt down and capture or kill murderous cyberpsychos. These psycho squads became common to most urban police departments, operating under names like C-SWAT (Cybernetic Special Weapons & Tactical Squad), PSYCHE-DIV, CYB-Enforcement or MAX-TAC (Maximum Force Tactical Division). Armed with the best in equipment and vehicles, most cybersquad members wore weapons that ranged from light cannons upward, also sporting all kinds of cyberware to take on similar threats. They were, by nature, not very nice people.
Over the years, however, the vast increase of cyberpsychotic cases forced these units to be separated to form their own police divisions, which soon became a common occurrence in many urban sprawls around the world.
Known Squads CYB-Enforcement MaxTac (Night City) PSYCHE-DIV

Cyberpsychos hunters

MaxTac is a C-SWAT rapid response team of the most combat capable and trained officers the Night City Police Department has to offer. Its members are outfitted with the best in military armor, weaponry, cyberware, and vehicles. Their main mission is to monitor highly augmented individuals and be prepared to arrive fast, hit hard, and shoot to kill if their target goes over the edge into cyberpsychosis. All MaxTac officers are supremely fit and agile, also capable of withstanding a great deal of damage. Although hunting down cyberpsychos is their main purpose, MaxTac is also utilized as a higher form of SWAT, requested any time an overwhelming force threatens innocent lives, and officers are not able or equipped to resolve the situation. Any time an NCPD SWAT team fails, the cyberpsycho squad arrives to deal with the problem.
MaxTac works in SPAR (Special Purpose Assault Rescue) teams. By necessity, many members are chromed to the point they are on the watch list themselves, some of whom are full body conversion. The NCPD sees this "fight fire with fire" strategy as effective, though many officers are teetering on the brink of cyberpsychosis themselves. MaxTac weapons are universally designed to take down heavily cybered individuals, including non-lethal and experimental weaponry, but which usually means high caliber rounds capable of penetrating any armor. EMP weapons are rare, since they'll do as much damage to the SPAR team as the cyberpsycho they're trying to take down.
Death is the typical outcome for any psycho hunted down by MaxTac, with capture and rehabilitation being rare. However, a number of officers are former cyberpsychos themselves, forcefully recruited after being apprehended and reconditioned, such was the case of Ares, or Melissa Rory decades later.

Type

Mental