PayPal, the eBay Inc.-owned online payment system, could be set for a major boost as mobile payment systems start to take off in the next year, a survey by the GfK Group, a German market research firm, suggests. Reuters reported that GfK found that PayPal was the brand most likely to be trusted with personal financial data by consumers in nine major markets around the world. Credit card brands Visa Inc. and MasterCard Inc. were the next most likely global brands to be trusted, followed by Apple Inc. — which already handles account data through the iTunes store – Nokia Corp. and Samsung Group.