Since wedding season began, 40-year-old Hanoian Thanh Danh cannot recall how many wedding invitations he’s received in the form of QR codes. Whenever he receives such impersonal invitations, he never ...

Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.

Fraud Safety Tips: Scanning fake QR codes on wedding cards can drain money from your account. Never scan unknown links or codes. If you notice anything unusual, report it immediately. Fraud Safety ...