For Immediate Release

Contacts:

Roger A. Barnes                     Howard Kalt
Chief Financial Officer             Principal
Cylink Corp.                        Kalt Rosen Chase & Co.
408/328-5125                        415/397-2686


                     CYLINK CORP. APPOINTS DELOITTE & TOUCHE
                           AS INDEPENDENT ACCOUNTANTS

     SUNNYVALE,  Ca., July 19, 1999--Cylink Corporation (NASDAQ: CYLK) announced
today that it has filed a Form 8-K  reporting  that it has  retained  Deloitte &
Touche  LLP as its  independent  accounting  firm,  and  Cylink's  dismissal  of
PricewaterhouseCoopers LLP.

     "This change of independent accountants was approved by the Audit Committee
of Cylink's  Board of  Directors  and does not reflect  any  disagreements  with
PricewaterhouseCoopers  LLP over matters of accounting  principles or practices,
financial statement  disclosure,  or auditing scope or procedure," said Roger A.
Barnes, Cylink's Chief Financial Officer.

About Cylink Corporation

Cylink  Corporation  develops,  markets and supports a  comprehensive  family of
secure electronic commerce and communications  solutions that protect and manage
the access,  privacy and integrity of information.  Founded in 1983, the Company
was one of the  first  to  market  a  security  solution  protecting  an  entire
communications  session by using public key cryptography.  Cylink and its wholly
owned  subsidiaries  serve  Fortune  500  companies,   multinational   financial
institutions, and government agencies worldwide. For more information, visit the
Company's web site at http://www.cylink.com.