kestrel-lang
opencybersecurityalliance
Kestrel threat hunting language: building reusable, composable, and shareable huntflows across different data sources and threat intel.
脆弱性の検出、システム保護、プライバシー対策のツールを探せます。
opencybersecurityalliance
Kestrel threat hunting language: building reusable, composable, and shareable huntflows across different data sources and threat intel.
opendp
The core library of differential privacy algorithms powering the OpenDP Project.
openfheorg
This is the development repository for the OpenFHE library. The current version is 1.6.1 (released on October 9, 2026).
opengdpr
openmls
Rust implementation of the Messaging Layer Security (MLS) protocol
OpenSC
Open source smart card tools and middleware. PKCS#11/MiniDriver
openwpm
A web privacy measurement framework
OpenZeppelin
OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup
openziti
openziti
openziti
oppoverbakke
opsqw
Scoop bucket for Penetration Testing and Cybersecurity related tools. 用于渗透测试和网络安全相关工具下载、安装和自动更新的Scoop软件仓库。
Or1un
orhanobut
ory
OsbornePro

This repository contains a collection of PowerShell tools that can be utilized to protect and defend an environment based on the recommendations of multiple cyber security researchers at Microsoft. These tools were created with a small to medium size enterprise environment in mind as smaller organizations do not always have the type of funding available to overly spend on security. The goal of this project is to help add value to an smaller organizations security by creating more visibility for the average IT Administrator. Organizations with 1,000’s of devices may find that this entire suite does not apply to them.
OshekharO
✨ ADB-based debloater for OPPO / Realme / Xiaomi / Redmi / OnePlus — No ROOT or Unlocked Bootloader Required!
OspreyProject
ossec
ossf
Our mission is to catalyze sustainable improvements to critical open source software projects and ecosystems.
ossf

The CVE Binary Tool helps you determine if your system includes known vulnerabilities. You can scan binaries for over 350 common, vulnerable components (openssl, libpng, libxml2, expat and others), or if you know the components used, you can get a list of known vulnerabilities associated with an SBOM or a list of components and versions.
ossf