FOR IMMEDIATE RELEASE

Corum Leads Acquisition of MINDBOX by MacDonald, Dettwiler and Associates

Bellevue, Washington January 4, 2006 Corum Group is proud to announce the acquisition of its client, MindBox, LLC. by MacDonald, Dettwiler and Associates Ltd. (MDA). MindBox is one of the leading providers of software for mortgage lenders that automates knowledge-intensive business processes using sophisticated decisioning systems and award-winning rule and case-based reasoning. There are great synergies between these two companies and the acquisition provides significant benefits to both parties. It enables MindBox to leverage the resources and presence of MDA in current and future markets. MDA can leverage MindBoxs powerful products and prestigious client base as an important addition to its lending services business in the U.S. MDA can also adapt MindBoxs solutions for its insurance services business, explains Ward Carter, Corum President.

About MindBox:

MindBox is a technology company focused on improving the financial performance of companies operating in the financial services industry by automating lending practices such as underwriting, pricing, product best fit, deal structuring, debt reparation, credit analysis and cross sell. MindBox automates these processes by delivering sophisticated decisioning systems using award-winning rule and case-based reasoning software. The technology integrates customer facing applications with back-end business operations and decisioning in one streamlined, efficient system that provides individually tailored, optimized customer interactions. For more information see www.mindbox.com.

About MDA:

MDA provides advanced information solutions that capture and process vast amounts of data, produce essential information, and improve the decision making and operational performance of business and government organizations worldwide. MDA employs more than 2,500 people in locations across the United States, the United Kingdom, and Canada. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA (see www.mdacorporation.com).

About Corum:

Corum Group Ltd. is the premier provider of M&A services to software and information technology companies worldwide. With ten offices globally, Corum has completed over $5 billion in transactions in 14 countries in its 20-year history, and publishes the software industrys most widely distributed M&A research. Corum is built and staffed by highly experienced former CEOs, who are supported by the industrys leading researchers, writers and valuators. The company has spent more than $20 million to build the worlds largest IT database of software companies worldwide (with over 70,000 contacts) to help ensure unparalleled success in client engagements. For more information visit www.corumgroup.com.

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