Privacy and Security Resources

A structured collection of materials for studying information security, privacy protection, and online anonymity. Here you will find documentation, tools, repositories, communities, scientific publications, and reference databases essential for anyone who takes digital hygiene seriously.

Documentation and Official Guides

A fundamental understanding of privacy tools begins with official documentation. Developers create detailed guides that cover every aspect of usage — from basic installation to advanced configuration. Below are the key sources you should start with when studying any tool.

Tor Project — Documentation

Anonymity

The official Tor Project documentation covers the principles of onion routing, configuring the Tor Browser, deploying relays and bridges, as well as operational security recommendations when using the network. The Tor Manual section contains a detailed description of all torrc configuration parameters, including circuit management, setting up version 3 hidden services, and integration with pluggable transports for censorship circumvention. Special attention is given to the threat model — the documentation honestly describes which attacks Tor protects against and which it does not.

Read Documentation

Tails — User Guide

OS

Tails (The Amnesic Incognito Live System) is an operating system designed to run from a USB drive without leaving traces on the host machine. The documentation contains step-by-step instructions for creating a bootable drive, setting up encrypted persistent storage, and using built-in applications for communication and file management. The section on system limitations helps users realistically assess the actual level of protection provided.

Tails Documentation

Whonix — Wiki Documentation

OS

Whonix implements isolation at the virtual machine level: the Gateway routes all traffic through Tor, while the Workstation physically cannot establish a direct connection. The project wiki contains hundreds of pages: from basic installation on VirtualBox and KVM to advanced scenarios — VPN-Tor chains, stream isolation, metadata leak protection, and countermeasures against timing attacks.

Whonix Wiki

Qubes OS — Documentation

OS

Qubes OS uses Xen hardware virtualization to create isolated domains (qubes), each running in a separate virtual machine. The documentation covers the system architecture, template management, network domain configuration, integration with Whonix for anonymous access, and a security model based on the principle of compartmentalization. Recommended for those who need maximum isolation of their work environments.

Qubes Documentation

Educational Materials and Articles

In addition to official documentation, there are numerous independent resources offering in-depth analysis of privacy and security issues. Below are articles and guides that will help broaden your understanding of threats and protection methods.

Video Materials

The video format allows for a visual demonstration of concepts that are difficult to explain through text alone. Below are educational videos that reveal the fundamental principles behind anonymous networks, encryption, and privacy protection.

How the Tor Network Works

A detailed explanation of the principles of onion routing, the construction of relay circuits, the role of entry and exit nodes, and the limitations of the Tor security model. Understanding these mechanisms is critically important for using the network correctly and assessing real threats.

Threat Models and Risk Assessment

Before choosing security tools, you need to define a threat model: who are you protecting yourself from, what data is critical, and what are the consequences of compromise. This talk examines a systematic approach to risk assessment that is applicable to journalists, activists, and everyday users who care about their privacy.

Cryptography: Encryption Fundamentals

Fundamental concepts of modern cryptography: symmetric and asymmetric encryption, hash functions, digital signatures, and key exchange protocols. Without understanding these principles, it is impossible to properly evaluate the reliability of any security tool.

GitHub Repositories and Tools

Open source code is the foundation of trust in security tools. The ability to audit code, verify the implementation of cryptographic protocols, and track the history of changes is critically important. Below are the key repositories of projects related to privacy and anonymity.

Tor

Network

The main Tor Project repository contains the source code of the tor daemon, which implements the onion routing protocol. Studying the codebase allows you to understand implementation details: circuit construction, key management, data cell processing, and interaction with directory services.

GitLab Tor Project

I2P

Network

I2P (Invisible Internet Project) is an overlay network designed for anonymous peer-to-peer communication. Unlike Tor, I2P is optimized for in-network services (eepsites) rather than accessing the regular internet. The repository contains the Java implementation of the router and client libraries.

GitHub I2P

Signal Protocol

Cryptography

The libsignal library implements the Signal Protocol — the de facto standard for end-to-end encryption of instant messages. The protocol uses the Double Ratchet algorithm, providing forward secrecy and post-compromise security. It is used in Signal, WhatsApp, and other messengers.

GitHub libsignal

WireGuard

VPN

WireGuard is a modern VPN protocol distinguished by its minimal attack surface (approximately 4,000 lines of Linux kernel code), high performance, and use of proven cryptographic primitives: Curve25519, ChaCha20, Poly1305, and BLAKE2s. The repository contains implementations for various platforms.

GitHub WireGuard

awesome-privacy

Directory

A curated list of privacy-focused tools and services. It includes alternatives to popular services: email providers, cloud storage, DNS resolvers, password managers, search engines, and much more. Each recommendation is accompanied by a brief description and links.

GitHub awesome-privacy

awesome-security

Directory

An extensive collection of information security resources: tools for penetration testing, malware analysis, digital forensics, network monitoring, as well as educational materials, labs, and practice platforms.

GitHub awesome-security

GnuPG

Cryptography

GNU Privacy Guard is a free implementation of the OpenPGP standard for encrypting and signing data. It is used for protecting email, verifying software packages, and managing keys. It is a critically important component of the trust infrastructure in the free software ecosystem.

GitHub GnuPG

OnionShare

Tool

OnionShare allows you to anonymously share files, host websites, and organize chat rooms through the Tor network. The tool automatically creates a hidden service (.onion) without requiring server configuration. It is especially useful for journalists and whistleblowers who need to securely transfer documents.

GitHub OnionShare

Communities and Forums

Discussing privacy and security issues in communities is an effective way to get up-to-date information, ask questions of experienced members, and track the latest events in the industry. It is important to remember that any information from open forums requires critical verification.

r/privacy

Reddit

The largest community on Reddit dedicated to digital privacy. Discussions cover data breaches, company policies regarding user data, choosing privacy tools, legislative initiatives, and practical advice on protecting personal information. The community has over a million members and is an excellent starting point for newcomers.

Go to r/privacy

r/TOR

Reddit

A community of Tor network users and operators. Configuration questions, troubleshooting, project news, censorship circumvention, and general anonymity topics are discussed here. Moderators ensure the quality of discussions and direct users to official documentation when necessary.

Go to r/TOR

r/netsec

Reddit

A technical community focused on network security. Links to research papers, vulnerability reports, technical analyses of security incidents, and tools are published here. The barrier to entry is high — technical literacy is expected from participants. An excellent source for tracking current threats.

Go to r/netsec

r/PrivacyGuides

Reddit

A community centered around the Privacy Guides project. Specific tool recommendations, service comparisons, and configuring operating systems and browsers for maximum privacy are discussed here. Useful for those seeking practical solutions rather than theoretical discussions.

Go to r/PrivacyGuides

r/cybersecurity

Reddit

A broad community of cybersecurity professionals. Industry news, career questions, corporate network protection practices, and personal infrastructure security are discussed. Suitable for both beginners and experienced professionals who want to stay current with ongoing events.

Go to r/cybersecurity

Hacker News

Forum

Y Combinator's news aggregator with an active community discussing technology, security, and privacy. Comments often contain expert analysis that surpasses the quality of the original articles. Keyword searches allow you to find archived discussions of specific tools and technologies.

Go to Hacker News

Vulnerability Databases and Security Research

Tracking known vulnerabilities is a mandatory practice for maintaining security. Vulnerability databases contain structured information about identified issues, their severity, affected software versions, and available patches. Scientific publications, in turn, reveal new classes of attacks and defense methods.

OSINT Resources and Open Source Intelligence

Open Source Intelligence (OSINT) is a discipline related to the collection and analysis of publicly available information. Understanding OSINT methods is important in two respects: for conducting your own research and for assessing what information a potential adversary can gather about you. Knowledge of OSINT methodology helps minimize your digital footprint.

OSINT Framework

Directory

A structured collection of tools and resources for open source intelligence, organized by category: search by name, email address, IP address, domain, social networks, images, and other identifiers. It allows you to quickly find the right tool for a specific research task.

Open OSINT Framework

IntelTechniques

OSINT

A resource by Michael Bazzell, one of the leading OSINT specialists, containing people search tools, educational materials on open source intelligence methodology, and recommendations for protecting your own privacy. The author's books are considered standard textbooks in the OSINT field.

IntelTechniques Tools

Shodan

Search

A search engine for discovering devices connected to the internet: servers, routers, surveillance cameras, industrial control systems, and IoT devices. Shodan indexes open port banners, allowing you to assess the attack surface and discover misconfigured services.

Go to Shodan

Have I Been Pwned

Monitoring

Troy Hunt's service allows you to check whether your email address or password has been compromised in known data breaches. It contains information about billions of compromised accounts. It is recommended to regularly check your addresses and use notifications for new breaches.

Check for Breaches

Privacy-Focused Search Engines

Traditional search engines collect extensive data about search queries, geolocation, and user behavior. Alternative privacy-focused search engines minimize or completely eliminate the collection of user data, do not create behavioral profiles, and do not filter results based on search history.

Mesh Networks and Decentralized Platforms

The centralized architecture of the internet creates single points of failure and control. Mesh networks and decentralized protocols offer an alternative model in which participants interact directly, without dependence on central servers. This increases resistance to censorship and reduces the possibilities of mass surveillance.

Briar

Messenger

A decentralized messenger capable of operating through Tor, Wi-Fi, and Bluetooth without internet access. Messages are synchronized directly between participants' devices. Designed for use in conditions of limited network access — during internet shutdowns, natural disasters, or in zones of active censorship.

Briar Project

IPFS

Protocol

InterPlanetary File System is a distributed protocol for content storage and addressing. Unlike HTTP, where content is addressed by location (URL), IPFS uses content addressing (CID). This ensures data integrity verification, censorship resistance, and efficient caching.

GitHub IPFS

Matrix / Element

Protocol

Matrix is an open federated messaging protocol. Anyone can deploy their own homeserver, which will communicate with other servers in the federation. The protocol supports end-to-end encryption based on the Olm protocol (analogous to the Signal Protocol). Element is the primary client for Matrix.

GitHub Matrix

Yggdrasil Network

Mesh Network

An experimental mesh network implementing fully encrypted IPv6 routing. Yggdrasil automatically builds a spanning tree and uses cryptographic addressing — a node's IPv6 address is derived from its public key. The network can operate both over the existing internet and through direct connections between nodes.

GitHub Yggdrasil

Freenet / Hyphanet

Network

A decentralized censorship-resistant platform for anonymous publishing and communication. Data is stored in a distributed manner across network nodes in encrypted form — no single node knows what it is storing. It supports two operating modes: opennet (connecting to arbitrary nodes) and darknet (connecting only to trusted contacts).

Hyphanet Project

Secure Scuttlebutt

Protocol

A decentralized protocol for social networks operating on the gossip principle — nodes exchange data upon direct contact, without a central server. Each user maintains an immutable message log signed with their key. The network functions even offline, synchronizing when connectivity becomes available.

GitHub Scuttlebutt

Tool Directories and Reference Resources

To systematize the vast number of available tools and services, there are curated directories that are regularly updated by the community. These resources help you navigate the ecosystem and choose the right solutions.

Principles for Working with Resources

When using the materials listed above, you should adhere to several fundamental principles. First, no single tool provides absolute security — each has its own threat model and limitations. Second, combining tools requires understanding how they interact: an incorrect configuration can not only fail to improve but actually decrease the level of protection. Third, operational security (OPSEC) — behavioral practices — is often more important than technical measures: user error remains the most common vector of deanonymization.

Regularly update your knowledge: the field of information security is evolving rapidly, and recommendations that are relevant today may become outdated within a few months. Subscribe to project mailing lists, follow discussions in communities, and critically evaluate all information, including what is presented on this page.