Virtual Cards and their Benefits?

Hi all.

How many times can I use a virtual card (VC) to pay for something online?

I am also struggling to see the benefit of VC’s. Would someone kindly explain in detail how these prevent fraudulent activity?

Many thanks indeed,

Ben.

OK, understood.

I guess by using one VC to pay for everything online would negate the benefit if I had fraudulent activity on it?! I would then have to replace the VC with a new one in every place it’s registered online, a bit like if I were using my default card.

Many thanks,

B.