Security

Superagent provides an autonomous security platform for testing applications, repositories, agents, and infrastructure.

Cisco Talos provides threat intelligence and directs reputation or categorization inquiries to its support site.

Consumer Reports Security Planner offers privacy guidance by asking questions about users’ needs and risks.

Forward Email provides open-source email forwarding for custom domains, with aliases, storage, and IMAP, POP3, and SMTP access listed on its site.

Standard Notes provides end-to-end encrypted notes, with a free download and pricing details on its page.

Explore this curated list of resources for learning about vehicle security and car hacking.

KeePass lists plugins and extensions for its password manager, including backup plugins and links to plugin framework guidance.

Privacy Matters compares secure messaging apps by security and privacy features, with a filterable table of services.

Browse a cybersecurity-focused collection of links and resources in this repository.

CEX.IO supports buying, selling, trading, holding, and earning cryptocurrency, with staking and savings products shown on its page.

GitHub Advisory Database catalogs CVEs and GitHub-originated security advisories affecting open-source software.

SpiderSuite is a cross-platform web crawler designed for security professionals.

This repository collects lists of tools and resources for hackers and security researchers.

DeFiSafety reviews process quality in decentralized finance and publishes its review criteria, documentation, and research resources.

Prediction Guard provides a self-hosted platform for applying NIST and OWASP policies to models and agents.

Rizin supports analysis of executable programs through an open source reverse engineering framework.

Monitor and block application network connections with Portmaster, a free, open-source firewall.

Access KeePass password databases on iOS and macOS with KeePassium, including autofill and synchronization features.

Telos Consilium provides Swiss digital asset advisory and on-chain yield and risk infrastructure for Web3 projects.

Sola Security provides a shared security context layer that helps teams and agents answer questions about their environment.

Add proof-of-work verification to websites with mCaptcha, a privacy-focused automated CAPTCHA system.

WhatsMyDNS checks DNS record propagation across global resolvers for record types including A, AAAA, MX, and TXT.

CodeAnt analyzes code, infrastructure, and runtime to identify exploitable security issues through its agent-based security platform.

Brahma provides programmable capital flows across chains, strategies, and payment systems for financial apps.