Exhibit 99.1 CAUTIONARY FACTORS RELEVANT TO FORWARD-LOOKING INFORMATION The Company wishes to caution readers that the following important factors, among others, in some cases have affected the Company's results and in the future could cause actual results and needs of the Company to vary materially from forward-looking statements made from time to time by the Company on the basis of management's then-current expectations. The businesses in which the Company is engaged are in rapidly changing and competitive markets and involve a high degree of risk, and accuracy with respect to forward- looking projections is difficult. Rapid Technological Change and Evolving Industry Standards; Dependence upon Developments The markets (both governmental and commercial) in which the Company competes are characterized by rapidly changing technology, evolving industry standards, intense competition, and frequent new service and product introductions, which require, among other things, the Company to make significant and on-going investment. The Company's success will depend upon its ability on a timely basis to develop and provide new or enhanced offerings, at competitive prices, that meet changing customer requirements or to acquire rights to such services and related products from other providers. There can be no assurance that the Company can successfully identify new opportunities and develop or obtain and bring competitive new offerings to market in a timely manner and at a competitive price. In addition, fundamental changes in the way services and products are marketed and delivered, including bundled services and products, could have a material adverse effect on the Company's business. The Company's plans include significant investment in technological and infrastructure development for Internet-related business opportunities. The Company's pursuit of necessary technological advances may require substantial effort, time, and expenditures. Development and introduction of technological advances is typically expensive and the investment often involves a long pay- back cycle. The Company has made significant investments in product and service developments in the past, some of which have not been financially successful. Failure of the Company, for technological or other reasons, to develop or obtain and introduce, in a timely manner, and market new services that are compatible with industry standards and that satisfy customer requirements at a competitive price, would have a material adverse effect on the Company's business, financial condition, and results of operations. In addition, the Company or its competitors may introduce enhancements to existing services or products, or embodying new technologies, industry standards, or customer requirements, that have the potential to replace or provide lower cost alternatives to the Company's existing offerings. The introduction of such enhancements or new services or products could render any of the Company's existing services and products obsolete and unmarketable. Any such event could have a material adverse effect on the Company's business, financial condition, or results of operations. Transition of Business Focus The Company has made a strategic decision to transition its businesses to focus principally on commercial Internet-related business opportunities. This transition entails significant redeployment of assets and energies and entails significant investment in new technologies, as well as marketing-related and personnel-related changes. There can be no assurance that this transition will be successful or that the transition process will not have a material adverse effect on the Company's business, financial condition, or results of operations, particularly due to the Company's expenses (including selling, general, and administrative expenses) and investments attendant to this transition. The success of the Company's initiative will depend particularly upon the development and expansion of the market for Internet services and products. This market has only recently begun to be developed, there is considerable uncertainly as to how the market will develop, and critical issues which may affect its commercial viability remain unresolved. For example, the Company believes that the market for commercial Internet services will continue to develop only if security, reliability, ease and cost of access, availability of electronic commerce services, and quality of offerings are achieved. The market will also be affected by application to it of existing or new laws or regulations. The Company cannot predict the eventual size of the market or the rate at which such market will develop. If the markets or the underlying technologies fail to grow, grow at a rate slower than anticipated, or become saturated with competitors, the Company's business, financial condition, and results of operations could be materially adversely affected. In addition, even if the Company is successful in developing important technology and related services, the Company nevertheless may have difficulty generating sufficient revenue growth and as a result may be forced either to curtail, sell, or abandon its efforts. In particular the Company believes the success of its Internet-related efforts will depend upon a number of factors, including the development and expansion of the market for Internet access services and products, and of the networks which comprise the Internet; the ability of the Company to continue and expand its current relationship with AT&T Corp. ("AT&T") and America Online, Inc. ("AOL"); the capacity, reliability, cost, and security of its network infrastructure; its ability to finance the expansion of its network infrastructure; its ability to develop price competitive services that meet changing customer requirements; its ability on a timely basis to attract and retain additional highly qualified management, technical, marketing, and sales personnel; and its ability to manage its growth. Dependence upon and Slowdown in Government Defense Spending; Dependence upon Mature Products The Company has historically derived the majority of its revenue from contracts and subcontracts with the U.S. government, and currently approximately one-half of the Company's revenue is derived from the U.S. government and its agencies, particularly the Department of Defense. The Company's business with the Department of Defense has been adversely affected by significant changes in defense spending. Overall defense budgets have been declining, and the Company expects this general decline and attendant increased competition within the consolidating defense industry to continue over the next several years. Further, funding limitations could result in reduction, delay, or cancellation of existing or emerging programs. These factors have reduced the Company's U.S. government revenue and operating margins in recent fiscal periods. The Company anticipates that competition in all defense-related areas will continue to be intense and accordingly, that there will be continued significant competitive pressure to lower prices, which may reduce profitability in this area of the Company's business. Any reduction in the level or profitability of the Company's business with the federal government, if not offset by new commercial business, could have a material adverse effect on the Company's business, financial condition, or results of operations. The Company's traditional commercial products, consisting principally of minicomputer-based data analysis software and X.25 network systems, have reached maturity in their respective life cycles, and the Company has discontinued sales of most of its traditional X.25 systems and products and has substantially eliminated its development effort, and significantly reduced its selling effort, related to the systems business as a whole. The Company believes that sales of these mature products will continue to decline. Continuing Operating Losses; Fluctuations in Financial Performance The Company has incurred operating losses in recent fiscal periods. The Company continues to invest in its commercial businesses, primarily in Internet-related activities, and its expense levels are based, in part, on its expectations of future revenue. If revenue levels are below expectations, operating results may be adversely affected. The Company expects to incur a significant operating loss for its fiscal year ending June 30, 1996 as a result of its substantial investment in internetworking activities and related significant operating losses. There can be no assurance that the Company will be able to increase commercial sales and reestablish profitability of the Company on an operating basis, or that profitability, if reestablished, can be sustained. In addition, in the fiscal year ended June 30, 1995, the Company's operating activities consumed $28.9 million in cash, exclusive of cash generated from the sale of the assets of LightStream Corporation in fiscal 1995. Operating activities used an additional $22.9 million in cash in the first three quarters of fiscal 1996. Further cash usage will be required to fund operating losses as well as the high level of capital expenditures in support of the investment being made in the Company's Internet-related business. There can be no assurance that the Company will be able to generate or otherwise obtain sufficient cash to meet its needs. Such inability could have a material adverse effect on the Company's business, financial condition, or results of operations. Reliance on Strategic Relationships Many of the Company's services are marketed in conjunction with the services or products of other vendors, and the Company plans to continue its strategy of developing key strategic relationships. Examples of important strategic partners of the Company include AT&T and AOL. The Company also has strategic relationships with other companies. There can be no assurance that the Company will be successful in its ongoing strategic partnerships or that the Company will be able to find further suitable business relationships as it develops new services or expands current services. Any failure to continue or expand such relationships could have a material adverse effect on the Company's business, financial condition, or results of operations. There can be no assurance that the Company's distributors and strategic partners, many of which have significantly greater financial and marketing resources than the Company, will not develop and market products in competition with the Company in the future, discontinue their relationships with the Company, or form competing arrangements with the Company's competitors. In particular, there is no assurance that AT&T will continue to purchase Internet services from the Company after the expiration of the current agreement. Moreover, AT&T's obligations to purchase a minimum amount of services in years 4 and 5 of the agreement will terminate, among other reasons, if a telecommunications carrier or on-line service provider, having the right to appoint a director of the Company, acquires ownership of 15% or more of the outstanding stock of the Company. In addition to certain other termination provisions, AT&T may cancel the agreement in the event the Company merges with, or becomes controlled by, another telecommunications carrier or an on-line service provider, and AT&T has the right to terminate the exclusivity obligation and to withhold other financial benefits in certain other situations. Competition The Company's market for defense-related services is extremely competitive. The defense markets are dominated by large defense contractors with substantially greater financial and marketing resources and larger technical staffs than the Company. Recent trends in this area are toward further market consolidation of large defense contractors into a smaller number of very large entities, further concentrating financial, marketing, and technical strength and increasing competitive and pricing pressure in the industry. Such competitive pressure may adversely impact the Company's operating results. The markets for the Company's Internet services are also highly competitive. In general there are no substantial barriers to entry to the Internet services market and the Company expects that competition with its Internet activities will intensify in the future. The Company expects that all of the major on-line services and telecommunications companies will compete fully in the Internet services market, and that other new competitors, including large computer hardware, software, media, and other technology and telecommunications companies, will enter the Internet services market, resulting in even greater competition for the Company's services and significant pricing pressure, which may impact the Company's operating results. Many of the Company's competitors are more established, benefit from greater market recognition, and have greater financial, technological, production, and marketing resources than the Company. In addition, competitors which are telecommunications companies may be able to reduce customers' overall communications costs by combining Internet access services with other services, thereby reducing the overall cost of their Internet access services and increasing pricing pressure on BBN. Competition could also increase if new companies enter the market or if existing competitors expand their service and product lines, or combine with other providers of Internet services or complementary services. An increase in competition could have a material adverse effect on the Company's business and operating results because of price competition and failure to gain market share. There can be no assurance that the Company will be able to compete successfully in the future. Maintaining any technological advantages that the Company may have or may develop will require continued significant investment by the Company in research and development and in sales and marketing. There can be no assurance that the Company will have or be able to obtain sufficient resources to make such investments or that the Company will be able to make the technological advances necessary to maintain such competitive advantages. Dependence upon Key Personnel; Need to Hire and Train Additional Qualified Personnel The Company believes that its future success depends in part upon its ability to attract and retain skilled senior management and technical, professional, marketing, and sales personnel. Recently, there have been a number of management changes at the Company, including a new president and chief executive officer. In this connection, a number of senior executives have left the Company in the last eighteen months, including several with many years of experience with the Company. The Company, along with other high-technology companies, faces competition in hiring and retaining skilled technical, professional, marketing, and sales personnel. In certain areas, such as emerging technologies and marketing, the supply of such people is limited. The process of locating personnel with the combination of skills and attributes required to carry out the Company's strategy is often lengthy. The Company's employees may voluntarily terminate their employment with the Company at any time. The loss of service of key personnel, or the inability to attract additional qualified personnel, could have a material adverse effect on the Company's product development efforts, business, financial condition, or results of operations. Uncertainty of Future Financing The Company may need to raise additional funds through public or private debt or equity financings in order to implement its strategy of exploiting new and emerging technologies, including its Internet-related capital requirements. Capital needs may include funding cash flow losses from operations; building and expanding its Internet network infrastructure; investing in working capital, other capital equipment, and selling and marketing infrastructure; and pursuing potential investments, acquisitions, and other expansion opportunities. There can be no assurance that any such funding will be available, or of the terms or timing of any such funding. If adequate funds are not available or are not available on acceptable terms, the Company may not be able to take advantage of opportunities, develop new services and products, or otherwise respond to competitive pressures. Such inability could have a material adverse effect on the Company's business, financial condition, or results of operations. Government Procurement Regulations The Company, like other companies doing business with the U.S. government, is subject to routine audit, and in certain circumstances to inquiry, review, or investigation, by U.S. government agencies, of its compliance with government procurement policies and practices. Based upon government procurement regulations, under certain circumstances a contractor violating or not complying with procurement regulations can be subject to legal or administrative proceedings, including fines and penalties, as well as be suspended or debarred from contracting with the government. The institution of such proceedings against the Company could, and suspension or debarment from contracting with the government would, materially adversely affect the Company's business, financial condition, and result of operations. The Company's policy has been and continues to be to conduct its activities in compliance with all applicable rules and regulations. The books and records of the Company are subject to audit by the Defense Contract Audit Agency ("DCAA"); such audits can result in adjustments to contract billings. Final contract billing rates for the Company have been established and billings audited for years through fiscal year 1991, except for the Company's former BBN Communications activities, for which final contract billing rates have been established and billings audited only through fiscal year 1984. The audit by DCAA of the Company's former BBN Communications activities for fiscal years 1985 through 1993, which had been delayed, is currently in progress. U.S. government revenue for BBN Communications activities during the nine-year period under audit represented approximately 40% of the Company's total U.S. government revenue during the period. DCAA has advised the Company that, based upon DCAA's interpretations of government contract regulations, DCAA intends to recommend to the responsible governmental administrative contracting officer that adjustments to BBN Communications contract billings be made which, if asserted and sustained upon appeal, would have a material adverse effect on the Company's financial condition and results of operations. The amount of any adjustments which may ultimately be asserted by the administrative contracting officer following receipt of the DCAA recommendations is not currently determinable. The Company and its counsel believe that DCAA's intended recommendations, in substantial part, are based upon incorrect interpretations of government contract regulations and are inconsistent with decided cases. The Company expects that any adjustments which may ultimately be asserted and sustained on appeal as a result of audits of the Company's fiscal years 1985 through 1995 (including the 1985 through 1993 period for BBN Communications) will not have a material adverse effect on the Company's financial condition and results of operations. There can be no assurance that any such adjustments will not be material until the results of such audits are finalized; any such adjustments, if material and sustained on appeal, would materially adversely affect the Company's business, financial condition, and results of operations. Dependence upon the Internet; Government Regulation and Legal Uncertainties Regarding the Internet An increasing percentage of the Company's revenue is derived from Internet- related services and products, and the Company expects that its success will depend in large part upon the development of a market and infrastructure for providing Internet access and carrying Internet traffic. There are currently few domestic laws or regulations directly applicable to access to or commerce on the Internet. For example, the recent federal Telecommunications Act of 1996 addresses the Internet directly only in criminalizing the making available to minors of "patently offensive" sexual or other "indecent" material on the Internet. However, due to the increasing popularity and use of the Internet, it is possible that a number of laws and regulations, domestic and foreign, may be adopted with respect to the Internet, covering issues such as telecommunications in general, message content, user privacy, property ownership, libel, pricing, characteristics and quality of services and products, and export controls. The adoption of any such laws or regulations may decrease the growth of the Internet, which could in turn decrease the demand for the Company's Internet-related services and products and increase the Company's cost of doing business or otherwise have an adverse effect on the Company's business, financial condition, or results of operations. Moreover, the Company's status or regulation under the telecommunications laws, and the applicability to the Internet of existing laws governing issues such as property ownership, libel, and personal privacy are uncertain. Further, certain of the Company's services and products containing encryption technology are subject to U.S. export controls. There can be no assurance that such export controls, either in their current form or as may be subsequently enacted, will not limit the Company's ability to distribute products outside of the United States or electronically. While the Company takes precautions against unlawful exportation, the global nature of the Internet makes control of distribution on the Internet virtually impossible. In addition, federal or state legislation or regulation may further limit levels of encryption or authentication technology. Any such export restrictions or new legislation or regulation could have a material adverse impact on the Company's business, financial condition, or results of operations. Changes in the regulatory environment relating to the Internet access industry or the telecommunications industry in general, including regulatory changes which directly or indirectly affect telecommunication costs, the Company's status or regulation under telecommunications laws, or the scope of competition from regional telephone companies or others, could have an adverse effect on the Company's business. The Company cannot predict the impact, if any, that regulation or regulatory changes may have on its business. Volatility of Stock Price The market price of the Company's Common Stock has recently been volatile. Factors such as announcements of fluctuations of the operating results of the Company or other technology companies, sales of Common Stock by any of the Company's employees, technological innovations or new services by the Company or its competitors, changes in financial estimates by securities analysts, or other events or factors, could have a significant impact on the future market price of the Common Stock. In addition, the stock market has experienced significant price and volume fluctuations that have particularly affected the market prices of equity securities of many technology companies, particularly in Internet-related fields, and that often have been unrelated to the operating performance of such companies. These broad market fluctuations may adversely affect the market price of the Company's Common Stock.