The virtual Visa cards can be used to perform anonymous payments online, since no address or name is given to the merchant.
One major disadvantage of the virtual Visa cards is that they cannot be used on sites that require address verification. Since address verification is widely used, this substantially limits the number of online merchants that accepts the virtual Visa cards.
Many online poker sites such as Pokerstars confirm that their customers can use EntroPay virtual cards wherever Visa is accepted.
↑Rosu, Grigore; Howard Barringer, Ylies Falcone, Nikolai Tillmann Insup Lee, Bernd Finkbeiner, Klaus Havelund, Gordon Pace, Oleg Sokolsky (2010). Runtime Verification: First International Conference, RV 2010, St. Julians, Malta, November 1–4, 2010. Proceedings (Lecture Notes in Computer Science / Programming and Software Engineering). Springer. ISBN3-642-16611-3.