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Synology Secure SignIn increases account security
**Synology NAS and a Synology account are required for this Application.**
**DiskStation Manager 7.0 or above version with Synology Secure SignIn service enabled is required.**
Synology Secure SignIn increases account security and offers two verification methods: Approve sign-in and verification code (OTP). Approve sign-in can be used to replace DSM password. For enhanced protection, use either method as the second sign-in step of 2-factor authentication.
What's New in the Latest Version 1.3.0
Last updated on Aug 14, 2025
What's New:
1. Users no longer need to re-authenticate for Auto Backup and Sync while signed in to the browser.
Fixed Issue:
1. Fixed an issue where Approve sign-in setup displayed misleading messages when using a QuickConnect connection.
2. Fixed an issue where Approve sign-in displayed a misleading error message when a user's login session had expired.
Compatibility and Installation:
1. Improved app stability when 16 KB mode is enabled in developer options.
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Synology Secure SignIn
1.3.0 by Synology Inc.
Aug 14, 2025