Exhibit 99

Press Release

Entrust Announces Financial Results for 4^th Quarter and Fiscal 2005

Highest Quarter and Annual Earnings in Company History

DALLAS – January 24, 2006 – Entrust, Inc. [Nasdaq: ENTU], a world leader in securing digital identities and information, today announced financial results for its fiscal quarter and year ended December 31, 2005.

Revenue for the fourth quarter was $24.8 million, an increase of 5% from $23.7 million in Q3, 2005, and a decrease from $27.1 million in Q4, 2004. Revenue for 2005 was $98.1 million, an 8% increase from $91 million in 2004. Product revenue for 2005 reached $34.2 million, which is up 17% from $29.3 million in 2004.

Entrust recorded Q4, 2005, net income in accordance with GAAP of $3.4 million, or $0.05 per share compared to Q3, 2005, net income of $956 thousand or $0.02 per share and Q4, 2004, net income of $2.6 million, or $0.04 per share. Entrust recorded full year 2005 net income of $6.4 million, or $0.10 per share, compared to 2004 net income of $1.1 million, or $0.02 per share. Net Income for Q4, 2005, and for the full year was the highest in company history.

Entrust recorded Q4, 2005, pro forma (non-GAAP) net income of $3.5 million, or $0.06 per share, compared to Q3, 2005, pro forma net income of $1.1 million, or $0.02 per share and Q4, 2004, pro forma net income of $2.8 million, or $0.04 per share. For the full year, Entrust recorded record pro forma (non-GAAP) net income of $7.0 million, or $0.11 per share, compared to $1.3 million or $0.02 per share for 2004, an increase of 450%. The Q4, 2005, and full year 2005 pro forma (non-GAAP) net income figures exclude approximately $202 thousand and $802 thousand respectively of purchased intangibles amortization in cost of goods sold and approximately $19 thousand and $75 thousand respectively of amortization of purchased intangible assets in operating expenses.

“While fourth quarter revenue was below our expectations, we are very pleased with the customer, product, and earnings momentum in our business,” said Bill Conner, Entrust chairman, president and chief executive officer. “We continued to gain traction with IdentityGuard, which increased pilots from 55 to 88. We increased our total transaction count to 84, our highest level in 5 years, and added 35 new customers. We also increased our earnings to 5 cents per share, our highest quarter of profitability in company history.”

2005 Highlights:

“2005 was a terrific year for Entrust”, continued Bill Conner. “We brought new products to market that delivered 11% of total product revenue, which underpinned our total product revenue growth of 17%. We also grew our revenue transactions by 26% and our new customer base by 150% in the year. All of this led to our highest earnings in the company’s history at $0.11 per share, or a 450% increase. These results, coupled with the strength of our product portfolio, the overall IT market, and our funnel, give us confidence to execute on our 2006 guidance.”

Q4, 2005 Business and Financial Metrics:

Solutions Revenue Breakout

In order to better reflect the dynamics of its business, Entrust will be transitioning from solutions revenue to product categories for 2006. The new categories will be: Emerging Growth Products including Entrust IdentityGuard and Boundary messaging, Public Key Infrastructure (PKI) including all certificate based products and Single Sign-On Products. A table is available at www.entrust.com/investor bridging the old and new reporting methods.

New Product Category Financial Metrics:

Financial Outlook:

For the first half of 2006, Net income in accordance with GAAP is targeted at $0.02 to $0.04 per share. For the full year 2006, Entrust is targeting net income in accordance with GAAP at $0.09 to $0.15 per share. Entrust is targeting pro forma (non-GAAP) net income of $0.05 to $0.07 per share and $0.15 to $0.20 per share for the first half and full year of 2006 respectively. A table reconciling the non-GAAP to GAAP numbers reported above is attached to this release.

Entrust’s financial guidance for the half and full year 2006 assumes no material change in the global IT spending environment and a stable exchange rate between the US and Canadian dollars. This guidance is current as of today only, and Entrust undertakes no obligation to update its guidance.

Technology and Industry Highlights:

Entrust will host a live teleconference and Webcast on Tuesday, January 24, 2006, at 5 p.m. (Eastern), featuring Chairman, President and CEO Bill Conner and Chief Financial Officer David Wagner discussing Entrust’s fourth quarter and year-end 2005 results. The conference call audio will be available live via dial-in at 1-800-814-4857 and via the Internet at http://phx.corporate-ir.net/playerlink.zhtml?c=73119&s=wm&e=1190914. Please log on approximately 15 minutes before the Webcast begins in order to register and to download and install any necessary audio software. An archive of the Webcast will be available for 90 days at the above Internet address.

For those unable to attend the live conference call, an audio replay will be available beginning at 7:00 p.m. (Eastern), Tuesday, January 24, 2006 through Tuesday, January 31, 2006 at 11:59 p.m. (Eastern). The North American replay number is 1-877-289-8525 and the International replay number is 416-640-1917. Both numbers have a pass code of 21170394#.

Use of Non-GAAP Financial Measures

Entrust uses the non-GAAP metrics of pro forma (non-GAAP) net income. This non-GAAP metric is provided to enhance the user’s overall understanding of our financial performance by providing investors additional information about our recurring operations. The non-GAAP results exclude: purchased intangibles amortization in cost of goods sold and amortization of intangible assets in operating expenses, stock option expense, and restructuring charges. The non-GAAP measures are included to provide investors and management with an alternative method for assessing Entrust’s operating results. The presentation of this additional information should not be considered in isolation or as a substitute for results prepared in accordance with accounting principles generally accepted in the United States.

This press release contains forward-looking statements relating to Entrust’s projected GAAP net income and pro forma(non-GAAP) net income for the first half of 2006 and full year 2006. Such statements involve a number of risks and uncertainties. Among the important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are unforeseen operating expenses, issues associated with revenue recognition, issues raised in connection with the review of quarterly financial results, and the risk factors detailed from time to time in Entrust’s periodic reports and registration statements filed with the Securities and Exchange Commission, including without limitation Entrust’s Annual Report on Form 10-K for the fiscal year ended December 31, 2004 and quarterly report on Form 10-Q for the fiscal quarter ended September 30, 2005. While Entrust may elect to update forward-looking statements in the future, Entrust specifically disclaims any obligation to do so, even if its estimates change.

About Entrust

Entrust, Inc. [NASDAQ: ENTU] is a world-leader in securing digital identities and information. Over 1,400 enterprises and government agencies in more than 50 countries use Entrust solutions to help secure the digital lives of their citizens, customers, employees and partners. Our proven software and services can help customers achieve regulatory and corporate compliance, while helping to turn security challenges such as identity theft and e-mail security into business opportunities. For more information on how Entrust can help secure your digital life, please visit: www.entrust.com

Entrust is a registered trademark of Entrust, Inc. in the United States and other countries. In Canada, Entrust is a registered trademark of Entrust Limited. All Entrust product names are trademarks of Entrust. All other company and product names are trademarks or registered trademarks of their respective owners.

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ENTRUST, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

IN ACCORDANCE WITH GENERALLY ACCEPTED ACCOUNTING PRINCIPLES

(in thousands, except per share data)

ENTRUST, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands)

Forward Looking Guidance

for the Six Months Ended June 30, 2006

Forward Looking Guidance

for Fiscal Year Ended December 31, 2006