Overview
Digital Defense is an open-source personal security checklist that provides 259 actionable recommendations for protecting digital privacy and securing online accounts. Created and maintained by Alicia Sykes, the project organizes security guides into 12 categories with three priority tiers, making it accessible to users at any experience level.
The checklist covers a broad scope of personal security topics, from authentication best practices and email protection to network security and physical safeguards. For cryptocurrency holders, the Personal Finance section addresses asset protection directly, with guidance on hardware wallet storage, virtual payment cards, and transaction privacy1. This makes Digital Defense a practical companion resource for anyone managing digital assets on Cardano or other blockchain networks, complementing ecosystem-specific wallets with foundational security habits.
Digital Defense operates as a community-maintained resource on GitHub, with contributions reviewed by maintainers before publication2. The checklist content is licensed under CC BY-NC-SA 4.0, while the site code uses an MIT license, ensuring the guidance remains freely available and open to improvement3.
Key Features
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Authentication and account security. Covers password management, multi-factor authentication methods including passkeys, and strategies for securing login credentials across services2.
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Web browsing and network privacy. Addresses browser fingerprinting, DNS leak prevention, VPN configuration, and techniques for reducing online tracking and data collection.
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Personal finance protection. Includes credit monitoring, credit freeze procedures, virtual card usage for online transactions, and cryptocurrency storage and acquisition practices1.
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Device and physical security. Spans mobile device hardening, personal computer configuration, smart home IoT privacy, and measures to prevent real-world security incidents.
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Community-driven maintenance. Content is contributed and reviewed by a community of contributors on GitHub, with structured YAML-based data enabling programmatic access through an API2.
What to Expect
Digital Defense presents a clean, searchable interface built around an interactive checklist format. Each of the 12 categories displays its items in a table with priority levels marked as Essential, Optional, or Advanced, allowing users to focus on high-impact actions first. A progress tracker on the homepage records completed items across all categories, providing a persistent overview of security posture improvements.
The site defaults to a dark theme with multiple theme options available through DaisyUI. Each checklist item includes a brief explanation and, where applicable, links to recommended privacy-respecting software through the companion project Awesome Privacy. The three-tier priority system helps users triage their security efforts, starting with essential protections like enabling two-factor authentication and applying credit freezes before moving to advanced measures such as cryptocurrency tumbling and alias-based purchasing.
Navigation follows a card-based layout on the hub page, with each category showing its item count and a brief description of what it covers. Users can filter items by priority level and mark individual checklist items as complete, with progress persisting in the browser. The combination of structured categorization, clear priority tiers, and persistent tracking makes Digital Defense well-suited for methodical, incremental security improvement rather than one-time reference.
