Amazon Fact : Fact Friday No. - 4

Programming Error in Amazon.com

Amazon.com was actually founded all the way back in the summer of 1994. But unlike other, Jeff Bezos did not believe in launching products “quick and dirty.” The website and processes that would eventually become Amazon.com underwent almost a full year of rigorous testing before Amazon’s website officially went live to the public in July of 1995.

Part of this testing process included a semi-private “beta” launch of the website that was limited, essentially, to friends and family of the handful of Amazon employees that existed at the time.

Still after there was also a huge programming error in the early days that would let customers trick Amazon into sending them money.
All you had to do was order a negative quantity of books and Amazon would credit the money to your credit card. That error has long since been fixed.