Synology DiskStation DS225+

Synology DiskStation DS225+
Security Grade C Calculator v	Synology DiskStation DS225+ Brand: Synology (Parent: Synology Inc.) Category: Network-attached storage (NAS) • Model / Gen: 2025 DiskStation Plus series DS225+ Release Date: 2025-06-04 • Status: In sale Classification Date: • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	https://kb.synology.com/en-global/DSM/tutorial/How_to_reset_my_Synology_NAS_7 🔗 Proof	User-selected qualitative rating: Rare. Physical RESET, removable drives and a lock slot are documented. The supplied assessment reports no public hardware-tampering cases, but no model-specific frequency source has been verified.
Known vulnerabilities	Very common	https://www.synology.com/en-uk/releaseNote/DSM?model=DS225%2B 🔗 Proof	User-selected qualitative rating: Very common, based on recurring DSM security advisories. Synology-SA-26:06 confirms vulnerabilities in specified older DSM builds; the vendor does not assign this frequency rating, and installed-version exposure remains configuration-dependent.
Prior attacks	Very common	https://www.synology.com/en-us/company/news/article/BruteForce/Synology%C2%AE%20Investigates%20Ongoing%20Brute-Force%20Attacks%20From%20Botnet 🔗 Proof	Provisional class-level rating: Very common, based on repeated documented campaigns against Synology NAS (2019 ransomware and 2021 StealthWorker). These predate DS225+ and do not establish attacks on this model. Frequency is a qualitative assessment, not measured prevalence.
Updatability	Very common	🔗 Proof	Assessment: Very common, based on multiple documented DSM releases and security updates for DS225+. This describes update availability, not proof that a particular unit is updated.
Category Score	Score: 3 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	🔗 Proof	Provisional assessment: Partial. DSM supports Kerberos-authenticated NFS, but also AUTH_SYS, which relies on client-provided numeric UID/GID rather than Kerberos authentication. Mutual authentication is therefore configuration-dependent; this is not a verified deployment rating.
Communications	Encrypted with up-to-date encryption	https://kb.synology.com/en-us/DSM/tutorial/How_to_add_extra_security_to_your_Synology_NAS 🔗 Proof	Scope-limited draft rating: Encrypted with up-to-date encryption, for DSM HTTPS management using TLS 1.2/1.3. Assumes HTTPS is used. This is not a claim that all device traffic is encrypted; HTTP and other services need separate configuration.
Storage	Encrypted with up-to-date encryption	https://kb.synology.com/index.php/da-dk/DSM/help/DSM/StorageManager/volume_create_volume?version=7 https://fehmijaafar.net/wiki-iot/index.php/Methodology 🔗 Proof	Scope-limited draft rating: Encrypted with up-to-date encryption, for data volumes configured with DSM LUKS/AES xts-plain64. Assumes volume encryption is enabled. Internal-flash encryption remains unverified; this scope differs from the literal Wiki-IoT flash criterion.
Category Score	Score: 2 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Full	https://kb.synology.com/en-br/DSM/help/DSM/AdminCenter/file_user_manage?version=7 🔗 Proof	DSM supports creating and managing users, assigning groups and access permissions, editing account data and deleting users. Full refers to these account-management capabilities.
Authentication	Basic	https://fehmijaafar.net/wiki-iot/index.php/Methodology 🔗 Proof	Provisional assessment: Basic. Normal DSM sign-in supports passwords and optional MFA, but documented physical Mode 1 reset can reset administrator credentials and disable 2FA. Wiki-IoT includes recovery-procedure authentication in this criterion. Physical-access protection and reset options can change risk.
Brute-force protection	Exist	🔗 Proof	Auto Block and Account Protection provide configurable blocking after failed logins. Exist indicates documented capability; enabled status and thresholds are deployment-dependent.
Event logging	Access event logged	🔗 Proof	DSM documents account login history and activity, including access times and connection details. This does not imply that every file operation or network event is logged.
Passwords	Require change after setup with complexity requirements	https://kb.synology.com/en-us/DSM/help/DSM/AdminCenter/file_user_advanced?version=7 🔗 Proof	User-selected draft rating: Require change after setup with complexity requirements, mapped from Enforced/Strong in the supplied assessment. DSM supports configurable strength rules; mandatory DS225+ first-setup enforcement has not been independently verified.
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	Synology DiskStation Manager (DSM) (Companion App: Synology Drive; Synology Photos; Synology Secure SignIn)
Hardware (CPU / GPU)	CPU: Intel Celeron J4125, 4 cores, 2.0 GHz base / 2.7 GHz burst • GPU: Intel UHD Graphics 600 integrated in the Intel Celeron J4125; DSM exposure/use not verified
Memory & Storage	Memory: 2 GB DDR4 non-ECC; expandable to 6 GB • Storage: 2 drive bays for 3.5-inch SATA HDDs or 2.5-inch SATA SSDs; drives sold separately
Power, Battery & Charging	Battery: User-supplied specification, not independently verified for DS225+: 1 x CR2032 RTC coin-cell for clock retention, not backup operating power. • Power: 60 W external power adapter; 100-240 V AC, 50/60 Hz; 16.98 W access / 6.08 W HDD hibernation (manufacturer measurements) • Charging: Not applicable; externally powered NAS
Display & Camera	Display: Front LED status indicators; managed through a web interface • Camera: Not specified as an integrated component; supports external IP cameras through Surveillance Station
Sound & Connectivity	Sound: Audible system beeper; the model manual documents a beep when the cooling fan fails • Connectivity: 1 x 2.5GbE RJ-45; 1 x 1GbE RJ-45; 2 x USB 3.2 Gen 1
Physical (Dimensions & Mass)	Dimensions: 165 x 108 x 232.2 mm (H x W x D) • Mass: 1.3 kg

COMPLETE-FIELD RESEARCH DRAFT - ASSUMPTIONS REQUIRE REVIEW BEFORE PUBLICATION.

Device: Synology DiskStation DS225+. Review date: 20 October 2026. All twelve classification criteria have a selected value. This does not mean every rating is independently verified. No particular NAS unit, installed build or deployment configuration was tested. Administrator-only fields remain untouched.

General specifications: https://www.synology.com/en-us/products/DS225%2B . Initial release date: https://www.synology.com/en-us/company/news/2025 . Intel documentation identifies UHD Graphics 600 in the J4125; availability to DSM has not been verified. The model manual documents a fault-alert beeper.

Evidence and judgment: Update availability, account management, configurable brute-force protection and account-access logging are documented capabilities. Partial authentication with other systems and Basic user authentication are reasoned draft assessments based on selectable NFS security modes and physical credential-reset behaviour. Hardware-tampering frequency (Rare), vulnerability frequency (Very common), mandatory first-setup password change with complexity, and CR2032 battery information include user-supplied judgments or specifications; model-specific confirmation is incomplete.

Explicit scope assumptions for the final three selections: 1. Prior attacks = Very common at the Synology NAS class/platform level. Official 2019 and 2021 reports document repeated campaigns, but predate DS225+. This is not proof of DS225+ incidents or a measured attack frequency. DeadBolt is not used as DS225+-specific evidence. 2. Communications = Encrypted with up-to-date encryption for the HTTPS management channel using TLS 1.2/1.3. HTTPS use is assumed, not verified. Unencrypted or legacy traffic may exist for other services. 3. Storage = Encrypted with up-to-date encryption for data volumes with encryption enabled (DSM LUKS/AES xts-plain64). This is an explicitly limited data-volume assessment, not confirmation of internal-flash encryption. Wiki-IoT literally refers to flash; that scope difference remains unresolved.

These selections complete the form without inventing a nonexistent Partial radio option. They must not be presented as unconditional security guarantees. Review the scope differences and unverified first-setup password, battery, firmware-build and frequency assumptions before publication.