John Brunner 
Shockwave Rider [EPUB ebook] 

He was the most dangerous fugitive alive, but he didn’t exist! Nickie Haflinger had lived a score of lifetimes . . . but technically he didn’t exist. He was a fugitive from Tarnover, the high-powered government think tank that had educated him. First he had broken his identity code — then he escaped. Now he had to find a way to restore sanity and personal freedom to the computerised masses and to save a world tottering on the brink of disaster. He didn’t care how he did it . . . but the government did. That’s when his Tarnover teachers got him back in their labs . . . and Nickie Haflinger was set up for a whole new education!First published in 1975.