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What's new in Synology Secure SignIn 1.2.1
1. Fixed an issue where users could not receive Approve sign-in requests.
2. Fixed an issue that could cause data inconsistencies when multiple devices automatically back up and sync accounts and profiles.
3. Fixed an issue that could cause unexpected login failures when connecting to DSM.
4. Fixed an issue where users' login attempts could be canceled if their biometric verification failed after receiving an Approve sign-in request.
About Synology Secure SignIn 1.2.1
**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.
Download Synology Secure SignIn 1.2.1
This release comes in several variants (we currently have 2). Consult our handy FAQ to see which download is right for you.
Version:1.3.1
Uploaded:February 25, 2026 at 12:00AM UTC
File size:31.74 MB
Downloads:26
Version:1.3.0
Uploaded:August 14, 2025 at 1:37AM UTC
File size:31.74 MB
Downloads:92
Version:1.2.3
Uploaded:December 12, 2024 at 4:20AM UTC
File size:28.25 MB
Downloads:84
Version:1.2.2
Uploaded:September 16, 2024 at 2:45AM UTC
File size:28.20 MB
Downloads:24
Version:1.2.1
Uploaded:April 25, 2024 at 3:38AM UTC
File size:12.79 MB
Downloads:76
Version:1.2.0
Uploaded:September 26, 2023 at 3:11AM UTC
File size:12.86 MB
Downloads:78
Version:1.1.1
Uploaded:April 18, 2023 at 3:52AM UTC
File size:38.45 MB
Downloads:54
Version:1.0.4
Uploaded:May 3, 2022 at 5:09AM UTC
File size:37.11 MB
Downloads:81
Version:1.0.3
Uploaded:December 20, 2021 at 7:30AM UTC
File size:36.56 MB
Downloads:45
Version:1.0.2
Uploaded:September 6, 2021 at 2:28AM UTC
File size:36.03 MB
Downloads:87
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