Hottest cybersecurity open-source tools of the month: April 2025
This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. GoSearch: …
Villain: Open-source framework for managing and enhancing reverse shells
Villain is an open-source Stage 0/1 command-and-control (C2) framework designed to manage multiple reverse TCP and HoaxShell-based shells. Beyond simply handling connections, …
GoSearch: Open-source OSINT tool for uncovering digital footprints
GoSearch is an open-source OSINT tool built to uncover digital footprints linked to specific usernames. Designed for speed and accuracy, it lets users quickly track …
SWE-agent: Open-source tool uses LLMs to fix issues in GitHub repositories
By connecting powerful language models like GPT-4o and Claude Sonnet 3.5 to real-world tools, the open-source tool SWE-agent allows them to autonomously perform complex tasks: …
Hawk Eye: Open-source scanner uncovers secrets and PII across platforms
Hawk Eye is an open-source tool that helps find sensitive data before it leaks. It runs from the command line and checks many types of storage for PII and secrets: passwords, …
Attack Flow: Learn how cyber adversaries combine and sequence offensive techniques
MITRE’s Attack Flow project aims to translate complex cyber operations into a structured language. By describing how adversaries sequence and combine offensive …
Tirreno: Open-source fraud prevention platform
Tirreno is an open-source fraud prevention platform designed as a universal analytics tool to monitor online platforms, web applications, SaaS products, digital communities, …
APTRS: Open-source automated penetration testing reporting system
APTRS is an open-source reporting tool built with Python and Django. It’s made for penetration testers and security teams who want to save time on reports. Instead of writing …
YES3 Scanner: Open-source S3 security scanner for public access, ransomware protection
YES3 Scanner is an open-source tool that scans and analyzes 10+ different configuration items for your S3 buckets in AWS. This includes access such as public access via ACLs …
BlueToolkit: Open-source Bluetooth Classic vulnerability testing framework
BlueToolkit is an open-source tool that helps find security flaws in Bluetooth Classic devices. It runs known and custom exploits to test if a device is vulnerable. Right now, …
Exegol: Open-source hacking environment
Exegol is a community-driven hacking environment, which helps users deploy hacking setups quickly and securely. It’s made for penetration testers, CTF players, bug …
Cloudflare open sources OPKSSH to bring Single Sign-On to SSH
OPKSSH (OpenPubkey SSH) makes it easy to authenticate to servers over SSH using OpenID Connect (OIDC), allowing developers to ditch manually configured SSH keys in favor of …
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