VASCO Data Security International, Inc. (VASCO), through its operating subsidiaries, design, develop, market and support hardware and software security systems that manage and secure access to information assets. Those security systems include user authentication and public key infrastructure (PKI) products and services for employee and consumer security, e-business and e-commerce. The Company operates in two segments: authentication products and services. The target markets of the Company are banking and financial services market and the enterprise and application security market. On January 10, 2011, the Company acquired DigiNotar Holding B.V. and its subsidiaries and acquired 100% interest in DigiNotar B.V. and DigiNotar Notariaat B.V. (collectively, DigiNotar). In April 2011, the Company acquired Alfa & Ariss B.V. On September 20, 2011, its subsidiary, DigiNotar B.V., filed a voluntary bankruptcy petition. In May 2013, the Company acquired Cronto, of Cambridge.