Russian-based members of Anonymous also told the BBC they they had taken part in hacking attacks in various countries, including those on Visa, Mastercard and Paypal in late 2010 in support of the Wikileaks founder Julian Assange.

BBC: Hackers vow new 'Anonymous' attacks on Kremlin groups

That number could swell if PayPal strikes a deal with Google to support mobile application purchases in its Android Market.

FORBES: PayPal Coming To Game Consoles

Here we take a detailed look at factors that support our forecast that the number of payments per account on PayPal are going to increase from 1.6 per month to about 2.5 per month in 2019.

FORBES: Quick Take