Mobile point-of-sale

Security researchers are uncovering widespread vulnerabilities in several popular mobile point-of-sale systems, which have become increasingly popular in recent years among many types of merchants large and small.

For their own sake, GrubHub and Uber should have purchased Caviar when Square reportedly offered it to them for sale in 2016. Instead, they now have a competitor who’s looking to eat their lunch in the restaurant delivery business.

Square Inc. gave an earnings forecast for the current quarter and year that fell short of analysts’ high expectations, a rare miss for the company and a signal its spending on new products and growth are tempering profit.

FundKite executives watched the small-business lending sector evolve — and determined that the trend of mobile point of sale providers offering loans and cash advances was limiting the market.

Restaurant point of sale and back-office management provider Toast has received $115 million in Series D funding that the company plans use to develop technology and expand its market.

Paul Galant will leave the CEO post at Verifone in the next few months, following a tenure in which he helped diversify and automate Verifone's merchant acquiring business and led a recovery from a series of strategic and economic missteps.

For stores that don't want such a high-tech makeover, options for automatic checkout options are being built on a much simpler foundation.

Square Inc. shares climbed to their highest price ever after New York granted the company a virtual-currency license, letting customers in the state buy and sell Bitcoin.

As contactless cards continue their momentum in the U.K., new use cases are popping up for the tap-and-go technology.

Going back to the debut of the free Square card reader, the mobile payments market has made fees — or the lack of fees — a major selling point.