Sometime between before 2008 until ~2019 (!), Citi (then Citibank) had a virtual credit creation Flash-only widget that could create virtual cards with optional

Sometime between before 2008 until ~2019 (!), Citi (then Citibank) had a virtual credit creation Flash-only widget that could create virtual cards with optional limits of amount and/or time. https://www.reddit.com/r/CreditCards/comments/ifc95c/citi_finally_moved_their_virtual_account_numbers/ https://www.reddit.com/r/CreditCards/comments/ifc95c/citi_fi... There were a couple of startups to produce physical virtualizable credit cards.