Boxcryptor 2.55.2774

Audit and security evidence

• Third-party audit by Kudelski reported no critical weaknesses in the Windows client and validated core security assumptions of the implementation.
  
• Auditors reviewed source code and documentation, improving confidence in correctness beyond black-box testing claims.
  
• Client-side encryption supports GDPR-aligned practices by minimizing exposure of plaintext and centralizing key custody.
  

Business capabilities and privacy/jurisdiction

• Centralized administration with Active Directory integration, policy enforcement, and user governance for regulated teams.
  
• Zero-knowledge design reduces reliance on cloud provider trust and limits blast radius during third-party incidents.
  
• For existing customers, data handling and keys remain with Secomba GmbH (Germany), aligning with EU privacy expectations.
  
• New deployments in the Dropbox stack should evaluate native E2EE for business accounts based on Boxcryptor technology.
  

And if you want to take comprehensive care of the security of your data and your PC, check out our Security & Recovery section.

What’s new in latest versions

Version 2.55.2774

• Current Windows build widely distributed post-acquisition, commonly referenced as the latest available MSI for continuity in existing environments.
  

Version 2.54.2765

• Preceding maintenance release in the same week, serving as a near-baseline predecessor to the current build.
  

Version 2.53.2568

• Earlier mid-year update prior to the acquisition period, superseded by the 2.54 and 2.55 lines.
  

Pro tips

• Enable filename encryption to minimize metadata leakage in shared folders and public cloud sync paths.
  
• For external recipients, prefer Whisply links with PIN/expiry to avoid persistent access outside managed identity stacks.
  
• Enforce two-factor authentication and AD-based policies across the tenant to reduce credential and lateral-movement risk.
  
• Keep WebView2 Runtime updated to avoid sign-in or embedded-webview issues in the Windows client shell.
  

Comparison: Boxcryptor vs dotConnect Universal and Bitwarden

Use case

• Boxcryptor: Client-side file protection and cloud storage encryption with transparent drive operations.
  
• dotConnect Universal: Universal ADO.NET provider for multiple databases; not a file encryption tool.
  
• Bitwarden: Open-source password and secrets management with end-to-end encryption across vaults.
  

Encryption model

• Boxcryptor: Local encryption with AES-256 and sharing via RSA-4096; zero-knowledge by design.
  
• dotConnect Universal: Not applicable; focuses on database connectivity, ORM, and drivers.
  
• Bitwarden: Vault encryption using modern primitives and audited open-source implementations.
  

Typical buyer

• Boxcryptor: Teams needing regulated file workflows across Dropbox/OneDrive/Google Drive with filename protection.
  
• dotConnect Universal: .NET developers unifying data access across heterogeneous RDBMS backends.
  
• Bitwarden: Orgs standardizing credential governance, SSO/SCIM, and developer secrets manager capabilities.
  

System requirements (Windows)

• Windows 10 or later
• .NET Framework 4.7.2+
• Microsoft WebView2 Runtime.
• The 2.55.2774 MSI is the commonly used distribution for Windows environments maintaining existing deployments.
  

Conclusion

For active installations, Boxcryptor remains a robust client-side solution delivering transparent workflows and strong privacy through zero-knowledge encryption while aligning with enterprise governance needs. The practical current Windows build 2.55.2774 sustains continuity for existing customers as Dropbox prioritizes native E2EE for business accounts. Teams in the Dropbox ecosystem should evaluate the native path, while others can continue leveraging filename protection, Whisply sharing, and AD policies already in place. Sticking to supported Windows baselines and keeping WebView2 current will help preserve stability and sign-in reliability over time.