NEW YORK (TheStreet) -- Shares of BlackBerry  (BBRY)  closed down 0.89% to $6.67 this afternoon after the company signed a deal with the U.S. Senate to put its software to work in a mass emergency notification system.

The U.S. Senate Sergeant at Arms office signed a "multi-million" dollar contract with the Canadian communications company, the Wall Street Journal reports.

The notification system will be used to alert employees and visitors to the U.S. Capitol of any attacks or threats and to coordinate a security response. The contract will run for five years.

The exact value of the contract is undisclosed, but will service more than three million government employees.

This is part of BlackBerry's move to step away from its smartphone business and to invest further in its software technology.

Separately, TheStreet Ratings rated this stock as a "sell" with a ratings score of D.

The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, disappointing return on equity, weak operating cash flow and generally disappointing historical performance in the stock itself.

You can view the full analysis from the report here: BBRY

Recently, TheStreet Ratings objectively rated this stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this articles's author.