Description
NSE mandates one-time password reset for all CMDB Segment users on or after November 7, 2025, as part of enhanced security measures to improve cyber resilience.
Summary
NSE is implementing enhanced security measures for the Capital Market Dissemination Board (CMDB) Segment application to reinforce security and improve cyber resilience. All users must complete a mandatory one-time password reset on or after end of day November 7, 2025. Users will be prompted to reset their password upon successful validation of existing credentials, and access will only be enabled after successful password reset.
Key Points
- Enhanced security measures being implemented for CMDB Segment application
- One-time mandatory password reset required for all users
- Password reset must be completed on or after end of day November 7, 2025
- Users will be prompted to reset password after validating existing credentials
- Access to application will be blocked until password reset is completed
- Market participants must reset passwords to avoid login issues
Regulatory Changes
No regulatory framework changes. This is an operational security enhancement measure to improve cyber resilience of the CMDB Segment system through password encryption implementation.
Compliance Requirements
- All CMDB Segment users must reset their passwords on or after November 7, 2025
- Password reset is mandatory and will be triggered automatically upon login after the specified date
- Users must complete the password reset process to regain access to the application
- Market participants should prepare users in advance to avoid login-related disruptions
Important Dates
- October 31, 2025: Circular issued
- November 7, 2025: End of day - mandatory password reset requirement becomes effective
- After November 7, 2025: Users will be prompted for password reset upon login
Impact Assessment
Operational Impact: Medium - All CMDB users will experience a one-time interruption requiring password reset. Organizations should communicate this requirement to all relevant users to prevent access issues and operational delays.
Market Impact: Low - This is a security enhancement measure affecting system access procedures only, with no direct impact on trading or market operations.
User Impact: Medium - Users must be prepared to reset passwords, which may cause temporary access delays if not anticipated. Support contact provided (1800-266-0050, msm@nse.co.in) for assistance.
Impact Justification
High importance due to mandatory nature and potential login disruption; medium impact as it affects system access but is a standard security upgrade with clear timeline