The idea that the porn industry was the first to process credit cards online is a laughable fable peddled by the industry itself.

The first online orders were processed by Netmarket[1][2] which had nothing to do with the porn industry.

[1] - https://en.wikipedia.org/wiki/NetMarket

[2] - http://www.nytimes.com/1994/08/12/business/attention-shopper...