Security

BlockSec Phalcon detects blockchain attacks and sends alerts to protocols, liquidity providers, traders, chains, and exchanges.

Experiment with DNS records and behavior using the interactive Mess With DNS project.

A GitHub collection of security hardening guides, tools, and other resources, including material tagged for Windows hardening and security practices.

AlterWare provides enhanced Call of Duty clients for several games, with patches to restore features and address exploits.

Each Ethernaut level requires hacking a smart contract in the Ethereum Virtual Machine through a Web3 and Solidity wargame.

This OSINT Toolkit page groups Google and Bing search operators for web research, including queries for sites, links and trends.

Build authentication into applications with Better Auth, an authentication framework.

View Toronto Police calls for service on a map that updates in real time, according to the supplied page description.

Tulipa Capital curates DeFi risk strategies and provides dashboards and partner information for its on-chain finance work.

The GrapheneOS mobile operating system emphasizes device security and privacy on supported Android hardware.

PrivateBin is an open-source pastebin that encrypts and decrypts pasted data in the browser.

PrivSec.dev offers a practical approach to privacy and security, with sections for its code, privacy information, and donations.

3F Mutual offers insurance related to a MakerDAO emergency shutdown, according to its page.

Sector035 archives weekly OSINT news articles, with a collection of published issues and updates to the migrated archive.

Photok provides a private photo vault for Android, storing selected images behind an app interface.

The Snyk Security Database provides vulnerability details and remediation guidance for packages and cloud configurations.

SSV Network uses distributed validator technology for Ethereum staking and offers SSV staking with cSSV rewards.

A GitHub repository collecting a library of various cybersecurity resources, with folders for cybersecurity and hacking documentaries, cybersecurity YouTube channels, and free red team practice labs.

Browse a curated collection of information security tools, links, and learning resources.

This arkenfox GitHub issue asks about Firefox's Enhanced Tracking Protection setting for suspected fingerprinting and its behavior.

K3 Capital manages non-directional DeFi strategies such as interest-rate arbitrage, liquidity provision, and early protocol participation.

Manage two-step verification tokens on Android with Aegis Authenticator, a free, open-source app.

OpenZeppelin Contracts provides a library for secure smart contract development.

Professor Messer offers free video training, study notes, and study group replays for CompTIA A+, Network+, and Security+.