It's anime day, apparently

Want to know more about ghost in the shell: [stand alone complex]?

The most serious brain-hacking crime was "Ghost Hack", a case where total individuality including past memories and body discretion of a certain person became the subject of the hacker. Various countermeasures were taken, such as the development of numerous protective walls and barriers along with reinforcement of regulations, not to mention security intensification within the neural network system.

But they failed to abolish cyber-crimes, thus resulting in a rat race: further development of protective walls and barriers, and the emergence of more intelligent and original hackers.

Wondering what the hell an AT field is?

The AT-Field (Absolute Terror Field):

There are four types of AT Fields. The first is the basic latent field inherent in all living beings. The next two are derived from the first and take either a passive or aggressive stance. The final type is a collection of specialized versions - only one of which will be discussed here.

Latent
All sentient life forms possess an AT Field - according to Kaoru. This includes Angels, EVAs, and even Humans. This latent AT Field can go unnoticed for an individual's whole life. The AT Field is what holds the bodies of humans together and ties their consciousness to that same body.

Didn't think so.