Security Dynamics Technologies, Inc. Announces Filing For Follow-On Public Offering

Business Wire, Oct 31, 1995

CAMBRIDGE, Mass.--(BUSINESS WIRE)--October 31, 1995--Security Dynamics Technologies, Inc. (Nasdaq: SDTI) today announced that it filed a registration statement with the Securities and Exchange Commission for a public offering of 2,300,000 shares of Common Stock. Of the shares being offered, 1,560,000 are being offered by the Company and 740,000 are being offered by selling stockholders. The Company has also granted to the underwriters an option to purchase up to an additional 345,000 shares to cover over-allotments. The net proceeds from the sale of shares by the Company will be used for general corporate purposes. The offering is being managed by Alex. Brown & Sons Incorporated, Robertson Stephens & Company, L.P. and Cowen & Company.

Security Dynamics designs, develops, markets and supports a family of security products used to protect and manage access to computer-based information resources. The Company's products include its SecurID tokens and ACE/Server software and Access Control Module software and hardware access control products.

Preliminary prospectuses may be obtained from Alex. Brown & Sons Incorporated, 135 East Baltimore Street, Baltimore, MD 21202, Robertson, Stephens & Company, L.P., 555 California Street, Suite 2600, San Francisco, CA 94104 or Cowen & Company, One Financial Square, New York, NY 10005.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This announcement shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any State in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such State.

Security Dynamics, SecurID and ACE/Server are registered trademarks of Security Dynamics Technologies, Inc.

CONTACT: Security Dynamics

Charles R. Stuckey, President & CEO

(617) 547-7820

or

Morgen-Walke Associates

Naomi Rosenfeld/Andrea Mabel

Media Contact: Lee Foley

(212) 850-5600

or

Alex. Brown & Sons, Inc.

Prospectus Department

(410) 727-1700

or

Robertson Stephens & Co.

Prospectus Department

(415) 781-9700

or

Cowen & Company

Prospectus Department

(212) 495-6000