The Cisco Umbrella Popularity List contains the most queried domains based on passive DNS usage across the Umbrella global network, reflecting the domain's relative internet activity agnostic to the invocation protocols and applications.
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A community-driven public malware repository providing access to malware samples, tools, and resources for the cybersecurity community.
A nonprofit security organization that collects and shares threat data to make the Internet more secure.
VirusTotal API v3 is a threat intelligence platform for scanning files, URLs, and IP addresses, and retrieving reports on threat reputation and context.
Search engine for Windows executable files and hashes, providing insights into file prevalence, behavior, and security information.
CRITs is an open source malware and threat repository for collaborative threat defense and analysis.
In-depth threat intelligence reports and services providing insights into real-world intrusions, malware analysis, and threat briefs.
A project that detects malicious SSL connections by identifying and blacklisting SSL certificates used by botnet C&C servers and identifying JA3 fingerprints to detect and block malware botnet C&C communication.
An all-in-one email outreach platform for finding and connecting with professionals, with features for lead discovery, email verification, and cold email campaigns.
ZoomEye is an advanced cyberspace search engine that provides detailed information on cyberspace assets, including server software and version information, for cybersecurity experts, researchers, and enterprises.
PINNED

Checkmarx SCA
A software composition analysis tool that identifies vulnerabilities, malicious code, and license risks in open source dependencies throughout the software development lifecycle.

Orca Security
A cloud-native application protection platform that provides agentless security monitoring, vulnerability management, and compliance capabilities across multi-cloud environments.

DryRun
A GitHub application that performs automated security code reviews by analyzing contextual security aspects of code changes during pull requests.