PARTNERS

CUSTOMERS

Public Audits

Some of our customers love transparency and publish the results of security audits together with X41. This helps them to show that they actually care about security and aim to improve the robustness of their software and lets the user base of these applications verify that security is not just an empty claim.

2024

Source Code Audit of Backstage
Source Code Audit of Mullvad VPN
Source Code Audit of BIND9 for ISC

2023

Source Code Audit of libjpeg-turbo for the Open Source Technology Improvement Fund (OSTIF)
Source Code Audit of Go TUF for the Open Source Technology Improvement Fund (OSTIF)
Source Code Audit of in-toto for the Open Source Technology Improvement Fund (OSTIF)
Source Code Audit of c-ares for the Open Source Technology Improvement Fund (OSTIF)
Source Code Audit of libcap for the Open Source Technology Improvement Fund (OSTIF)
Source Code Audit of simplejson for the Open Source Technology Improvement Fund (OSTIF)

2022

Source Code Audit of Git for the Open Source Technology Improvement Fund (OSTIF)
Source Code Audit of The Update Framework for the Open Source Technology Improvement Fund (OSTIF)
Penetration Test on Backstage for the Backstage team

2021

Source Code Review of Selected Options Vault Contracts for Thetanuts.Finance

2019

Unbound DNS Server
Monero RandomX

2018

Mozilla Balrog
theQRL
Wire Secure Messenger (Android)
Wire Secure Messenger (Web - Calling)
Wire Secure Messenger (iOS)

2017

Wire Secure Messenger (Proteus)

Whitepaper

Custom security research and analysis of attack surface and technical mitigations enables our customers to go beyond the constant cycle of finding security issues in their software or infrastructure.
One such example is the Browser Whitepaper that X41 created for Google. X41 covers the differences in security design, implementation and user interface of the Google Chrome, Microsoft Edge and Internet Explorer browsers.