PayPay

PayPay Corporation (PayPay株式会社) is a Japanese company that develops electronic payment services owned by LY Corporation. It was established in 2018 as a joint venture between the SoftBank Group and Yahoo Japan through Z Holdings, their holding company. With 38 million users, PayPay is the largest Japanese mobile payment app. In October 2018, it began a QR code and bar code-based payment service, which was developed in collaboration with Paytm, an India-based payment service company.

From a smartphone app, users link their bank account and add money to their PayPay account. At the point of sale, the user makes a payment either by scanning a QR code, or by having the clerk scan a bar code on the smartphone.

2020 cybersecurity incident
PayPay's server fell victim to a hacking attack, originating in Brazil, on November 28, 2020. As per the operator of PayPay, a server containing personal and financial information of its entire userbase was compromised. The company acknowledged that configuration flaws led to unauthorized access to information. The service operator was later notified of the incident and preventive measures were taken.