Sweden is all but done with cash money, which is fascinating and frightening. Paper currency and coins aren’t, strictly speaking, necessary in a smartphone society, but the digital equivalent is trackable. As cookies can follow our online travels, these digital crumbs mark our every step.

“Now people can’t get away,” a Swedish street vendor tells Liz Alderman in her excellent New York Times piece on the topic. The opening:

STOCKHOLM — Parishioners text tithes to their churches. Homeless street vendors carry mobile credit-card readers. Even the Abba Museum, despite being a shrine to the 1970s pop group that wrote “Money, Money, Money,” considers cash so last-century that it does not accept bills and coins.

Few places are tilting toward a cashless future as quickly as Sweden, which has become hooked on the convenience of paying by app and plastic.

This tech-forward country, home to the music streaming service Spotify and the maker of the Candy Crush mobile games, has been lured by the innovations that make digital payments easier. It is also a practical matter, as many of the country’s banks no longer accept or dispense cash.

At the Abba Museum, “we don’t want to be behind the times by taking cash while cash is dying out,” said Bjorn Ulvaeus, a former Abba member who has leveraged the band’s legacy into a sprawling business empire, including the museum.

Not everyone is cheering. Sweden’s embrace of electronic payments has alarmed consumer organizations and critics who warn of a rising threat to privacy and increased vulnerability to sophisticated Internet crimes. Last year, the number of electronic fraud cases surged to 140,000, more than double the amount a decade ago, according to Sweden’s Ministry of Justice.•