But then a French private-equity firm, PAI Partners, suddenly appeared as Atos Origin's largest single shareholder two weeks ago, and said it backed the management's strategy.

ECONOMIST: Business in France

Paypal, for example, has a series of Fraud Management Filters that screen payments and sort out transactions that warrant review because of their amount, their origin, or other factors that can be set by a merchant.

FORBES: Anti-Fraud Is Big Opportunity For Google, PayPal, Amazon