________________________________________________________________________
              THE COMPUTER INCIDENT ADVISORY CAPABILITY

                                 CIAC

                      INFORMATION    BULLETIN
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Problem in the Texas Instruments D3 Process Control System 


January 4, 1990, 1430 PST                                   Number A-11

CIAC has recently learned of a computer security problem in the Texas
Instruments D3 Process Control System running on the RSX operating
system (all versions).   If your site has this system and you wish to
learn more about this problem, please contact CIAC.

  Eugene Schultz (415) 422-8193 or (FTS) 532-8193 
  FAX:  (415) 423-0913 or (FTS) 543-0913

CIAC's 24-hour emergency hot-line number is (415) 971-9384

or send e-mail to:  ciac@tiger.llnl.gov
 
Neither the United States Government nor the University of California
nor any of their employees, makes any warranty,  express or implied, or
assumes any legal liability or responsibility for the accuracy,
completeness, or usefulness of any information, product, or process
disclosed, or represents that its use would not infringe privately
owned rights.  Reference herein to any specific commercial products,
process, or service by trade name, trademark manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation, or favoring by the United States Government or the
University of California.  The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government nor the University of California, and shall not be used for
advertising or product endorsement purposes.