Possibilities to receive cashless payments while the company's network is down:<p>- printed, static QR code: customer scans it with their payment app and enters the amount<p>- have an NFC enabled phone that receives payments (most android devices can)<p>- use the “knuckle busters”: the old school way of imprinting the card number on paper<p>- NFC enabled device like the one on buses in some cities, synced only at the end of the day<p>- receive money via one of the marketplace apps: UberEat, Doordash, Grab<p>- customer browses and pays the company’s online shop in the store instead (this us what Decathlon did once it had a similar outage)<p>- what else?<p>I’m quite curious why McDonald’s apparently decided to have no fallback at all. They surely have thought about it. Is the efficiency loss too high? Fraud risk? Training costs?