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open-source cybersecurity tools
Hottest cybersecurity open-source tools of the month: January 2026

This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. OpenAEV: …

OPNsense
OPNsense 26.1 brings updates to open-source firewall management

OPNsense, the open-source firewall and network security platform, reached version 26.1, adding a range of updates affecting management, traffic visibility, automation …

CERT UEFI Parser
CERT UEFI Parser: Open-source tool exposes UEFI architecture to uncover vulnerabilities

CERT UEFI Parser, a new open-source security analysis tool from the CERT Coordination Center has been released to help researchers and defenders examine the structure of …

Claude
Claude expands tool connections using MCP

Anthropic has added interactive tool support to its Claude AI platform, a change powered by the open Model Context Protocol (MCP). The update lets users work directly with …

Brakeman
Brakeman: Open-source vulnerability scanner for Ruby on Rails applications

Brakeman is an open-source security scanner used by teams that build applications with Ruby on Rails. The tool focuses on application code and configuration, giving developers …

winapp
Microsoft introduces winapp, an open-source CLI for building Windows apps

Microsoft has released winapp, a new command line interface aimed at simplifying the process of building Windows applications. The open-source tool targets developers who rely …

Bandit
Bandit: Open-source tool designed to find security issues in Python code

Bandit is an open-source tool that scans Python source code for security issues that show up in everyday development. Many security teams and developers use it as a quick way …

PrivacyHawk
Product showcase: PrivacyHawk for iOS helps users track and remove personal data from data brokers

Every interaction online, from signing up for a newsletter to making a purchase, leaves a trace. These traces are collected by data brokers and resold to advertisers, …

Bytebase
Bytebase: Open-source database DevOps tool

Bytebase is a DevOps platform for managing database schema and data changes through a structured workflow. It provides a central place for teams to submit change requests, run …

CISO Assistant
CISO Assistant: Open-source cybersecurity management and GRC

CISO Assistant is an open-source governance, risk, and compliance (GRC) platform designed to help security teams document risks, controls, and framework alignment in a …

hardware
Firmware scanning time, cost, and where teams run EMBA

Security teams that deal with connected devices often end up running long firmware scans overnight, checking progress in the morning, and trying to explain to colleagues why a …

Orbot for iOS
Product showcase: Orbot – Tor VPN for iOS

Orbot for iOS is a free, open-source networking tool that routes supported app traffic through the Tor network. Developed by the Guardian Project, it is intended for users who …

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