AuthentiDate Holding Corporation Announces That AuthentiDate International AG Receives Official Accreditation From the German Regulatory Authority for Telecommunications and Post.

Business Editors

SCHENECTADY, N.Y.--(BUSINESS WIRE)--Nov. 15, 2001

First Company Specializing in Qualified Digital Time Stamps To be

Accredited in Accordance With the German Digital Signature Act

Making Electronic Documents and Transactions Legally Binding

AuthentiDate International AG, a joint venture of AuthentiDate Holding Corporation (NASDAQ: ADAT), has become the first company specializing in qualified, digital time stamps to receive official accreditation from the German Regulatory Authority for Telecommunications and Post (RegTP) in accordance with the German Digital Signature Act, and European directives.

Now, for the first time, AuthentiDate's patent-pending technologies are available to customers who require fast, fully automatic and cost-effective creation of signatures, complying with the new German and European signature regulations. This allows companies to achieve compliance with the new German legal regulations, which require all electronic data to be stored with legal certainty by January 1, 2002.

"It is clear that the future for electronic business transactions has undergone a major change as a result of January 1, 2002 modifications to the tax laws and the new German Digital Signature Act. And now that AuthentiDate AG has received official accreditation, the last piece of the authentication puzzle is in place. It is reasonable to expect a groundswell of electronic transaction acceptance by businesses sensitive to the authenticity of documents. AuthentiDate AG is now very favorably positioned to support the global time stamping requirements of multinational corporations," remarked Jan C. Wendenburg, President of the AuthentiDate Board.

AuthentiDate is the only legally accredited service provider to specialize in the generation of digital time stamps. AuthentiDate's proprietary systems and techniques have given the company a considerable head start. Only three other companies in Germany -- Datev, Deutsche Telekom (TeleSec) and Deutsche Post (SignTrust) -- have so far matched AuthentiDate's achievement in obtaining approval to operate with their own Trust Center by completing the laborious and costly legal process of certification in accordance with the current Digital Signature Act.

The incorporation of digital signatures provides evidentiary, legal certainty as to the contents of a dispatched document at the point in time when it is stamped with the digital signature. This guarantee of authenticity for electronic documents is of vital importance, especially in the fields of e-mail communication, bill presentment and contract sending, research and development documentation, B2B and B2C web transactions, and patent applications. Qualified, digital time stamps can enable public authorities to achieve immense cost savings, while maintaining the highest levels of security, in line with implementation of the German Federal Cabinet's e-Government initiative.

Concurrent with the achievement of accreditation, AuthentiDate is now providing unique software technology, which allows the rapid generation of mass quantities of time stamps. For the first time, users of this technology can add digital signatures to an almost unlimited number of digital documents without any significant delay. This is an essential prerequisite for using this technology in the business and public administration sectors. The manufacturer-independent process is easy to implement in virtually any existing IT structure, and it allows personal signatures to be integrated automatically. AuthentiDate provides a range of different software modules for this purpose.

The European Directive on Electronic Signatures was transposed through the Digital Signature Act of May 16, 2001. At the same time, existing laws were amended. Thus, Turnover Tax Law ss. 14, Para. 4, Clause 2 envisages that, as of January 1, 2002, digital invoices for tax deduction will only be accepted if they are provided with a qualified, digital signature. Companies who fail to implement the technical means of achieving this procedure will be unable to utilize the option of input tax deduction.

About AuthentiDate International AG:

The German Regulatory Authority for Telecommunications and Post (RegTP) has accredited AuthentiDate International AG as an official Certification Service Provider in accordance with the German Digital Signature Act.

Working from its headquarters in Ratingen, the company develops and supplies solutions to provide secure electronic data and electronic transactions using digital time stamps with evidentiary status, as well as solutions to achieve centralized implementation and administration of e-mail security and PKI functionality.

For the first time, AuthentiDate's unique, patent-pending technologies provide the ability to rapidly generate large quantities of digital time stamps, in compliance with the new German Digital Signature Act and the corresponding European directives.

AuthentiDate is thus one of the few companies to have successfully completed the laborious and costly process of accreditation in accordance with the Digital Signature Act. The services provided by AuthentiDate allow companies and public authorities to satisfy the legal requirements dictated by this Act.

AuthentiDate Inc. -- based in New York, USA -- is responsible for providing the company's services in the USA, in compliance with locally applicable Digital Signature Laws.

About AuthentiDate Holding Corp.

AuthentiDate Holding Corp. (AHC) is the holding company of three business units; Authentidate, Inc., DJS Marketing Group/Computer Professionals International and DocStar. Authentidate, Inc. provides the authentication of digital data through its proprietary and patented technology. Authentidate is establishing itself as the authority on "content security" as it is a growing sector of the electronic network security infrastructure market. DJS performs computer integration services and sells computer products. DocStar sells a complete line of document imaging products.

This press release contains forward-looking statements within the meaning of section 27A of the Securities Act of 1933 and section 21E of the Securities Act of 1934. When used in this release, the words "believe," "anticipate," "think," "intend," "plan," "will be," "expect," and similar expressions identify such forward-looking statements. Such statements regarding future events and/or the future financial performance of The Company are subject to certain risks and uncertainties, which could cause actual events or the actual future results of the Company to differ materially from any forward-looking statement. Such risks and uncertainties include, among other things, the availability of any needed financing, the Company's ability to implement its business plan for various applications of its technologies, the impact of competition, the management of growth, and the other risks and uncertainties that may be detailed from time to time in the Company's reports filed with the Securities and Exchange Commission. In light of the significant risks and uncertainties inherent in the forward-looking statements included herein, the inclusion of such statements should not be regarded as a representation by the Company or any other person that the objectives and plans of the Company will be achieved.