> EC2 was developed first and foremost for Amazon's internal infrastructure. It started out as an idea in the head of Chris Pinkham, who worked as an engineer in charge of Amazon's global infrastructure in the early 2000s.
> "It struck us in the infrastructure engineering organisation that we really needed to decentralise the infrastructure by providing services to development teams," Pinkham says. "That was a big motivating factor."
Someone here is lying. I really couldn't care less who's right or wrong, I'm just using publicly available information.
Actually, they can be both true: it could have been developed for Amazon's internal use, but sold to the public before the target internal customer was sold on adopting it.
EC2 was sold to customers long before it was functional and secure enough for Amazon itself to use.