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- **************************************************************************
- Security Bulletin 9123 DISA Defense Communications System
- 7 November 1991 Published by: DDN Security Coordination Center
- (SCC@NIC.DDN.MIL) 1-(800) 365-3642
-
- DEFENSE DATA NETWORK
- SECURITY BULLETIN
-
- The DDN SECURITY BULLETIN is distributed by the DDN SCC (Security
- Coordination Center) under DISA contract as a means of communicating
- information on network and host security exposures, fixes, & concerns
- to security & management personnel at DDN facilities. Back issues may
- be obtained via FTP (or Kermit) from NIC.DDN.MIL [192.112.36.5]
- using login="anonymous" and password="guest". The bulletin pathname is
- SCC:DDN-SECURITY-yynn (where "yy" is the year the bulletin is issued
- and "nn" is a bulletin number, e.g. SCC:DDN-SECURITY-9123).
- **************************************************************************
-
- NETWORK SECURITY TESTING AND MONITORING
-
-
- 1. IN ACCORDANCE WITH NATIONAL TELECOMMUNICATIONS AND INFORMATION
- SYSTEMS SECURITY DIRECTIVE (NTISSD) NO. 600, "COMMUNICATIONS
- SECURITY (COMSEC) MONITORING," 10 APR 90 (FOUO), IT IS REQUIRED
- THAT USERS OF GOVERNMENT TELECOMMUNICATIONS SYSTEMS BE NOTIFIED
- IN ADVANCE THAT THEIR USE OF THESE SYSTEMS CONSTITUTES CONSENT
- TO MONITORING FOR COMSEC PURPOSES. THE SAME APPLIES TO SECURITY
- TESTING OF AUTOMATED INFORMATION SYSTEMS AND NETWORKS.
-
- 2. ADEQUATE NOTICE TO USERS CAN BE ACCOMPLISHED BY ANY OF THE
- FOLLOWING MEANS OR ANY COMBINATION THEREOF:
-
- (A). DISPLAYING A PRINTED MESSAGE DURING THE LOG-ON PROCESS.
-
- (B). DISPLAYING A PRINTED MESSAGE PERIODICALLY OR CONTINUALLY
- DURING SYSTEM OPERATION.
-
- (C). DECALS PLACED ON PROCESSING TERMINALS, TRANSMITTING AND
- RECEIVING DEVICES.
-
- (D). NOTICES IN DAILY BULLETINS OR SIMILAR MEDIUM.
-
- (E). A SPECIFIC MEMORANDUM TO USERS.
-
- (F). A STATEMENT IN THE STANDING OPERATING PROCEDURES,
- INSTRUCTIONS, OR SIMILAR DOCUMENTS.
-
- 3. RECOMMEND, AS SOON AS POSSIBLE, ALL USERS OF THE DEFENSE DATA
- NETWORK (DDN) BE PUT ON NOTICE THAT THEIR USE OF THE DDN CONSTITUTES
- CONSENT TO SECURITY MONITORING AND SYSTEM TESTING. PROPER
- NOTIFICATION IN TERMS OF CONTENT AND SPECIFICITY IS:
-
- "GOVERNMENT TELECOMMUNICATIONS SYSTEMS AND AUTOMATED INFORMATION
- SYSTEMS ARE SUBJECT TO A PERIODIC SECURITY TESTING AND MONITORING TO
- ENSURE PROPER COMMUNICATIONS SECURITY (COMSEC) PROCEDURES ARE BEING
- OBSERVED. USE OF THESE SYSTEMS CONSTITUTES CONSENT TO SECURITY
- TESTING AND COMSEC MONITORING."
-
- 4. ON DDN HOSTS WITH LIMITED CHARACTERS AVAILABLE IN THE LOG-IN
- BANNERS, ADEQUATE NOTICE WOULD BE PROVIDED BY DISPLAYING THE
- FOLLOWING:
-
- "USE CONSTITUTES CONSENT TO SECURITY TESTING AND MONITORING."
-
- 5. POINT OF CONTACT IS MAJOR BOYD, CODE DODM, AT COMM (703) 692-7580
- OR DSN (312) 222-7580.
-
-