A browser automation framework and ecosystem.

log4j-scanner is a project derived from other members of the open-source community by CISA to help organizations identify potentially vulnerable web services affected by the log4j vulnerabilities.

Jackhammer - One Security vulnerability assessment/management tool to solve all the security team problems.

A collection of reverse engineering challenges for learning about the Android operating system and mobile security.

The open source hardware wallet smartcard - Satochip.io

The open-source bearer crypto card

A small java library to interface with the SatoChip hardware wallet

Bitcoin client library written in Java

Java code to talk to YubiKeys (limited support)

Bitcoin SPV wallet written in Java