Empowering Everyone to Benefit from Secure Infrastructure.
Light Squares builds secure and simple systems that solve hard problems leveraging modern hardware and the latest research.
CHALLENGE
Executable binaries are digital black boxes. While we can inspect and audit source code, the final artifacts are hard to reason about. Modern CI/CD pipelines run on third-party servers; thus making their provenance even more diffuse. How can we restore trust in software?
SOLUTION
Attestable Builds are the first build service that provides verifiable source-to-binary correspondence for all projects with minimal changes. Our solution is a scalable and easy-to-use alternative to reproducible builds and integrates with GitHub and GitLab.
CHALLENGE
Data is the oil of the 21st century—and leaks are devastating. This prevents organizations making the most of their sensitive data with modern technologies and adopting AI/ML. Where data is exchanged, it often leaves smaller players at a disadvantage.
SOLUTION
Confidential Computing uses verifiable security features of modern CPUs to create "an encrypted, verifiable machine inside a server". This enables us to use proven cryptographic techniques that already protect data-in-transit and data-at-rest and apply them to the data-in-use.
Daniel and Mario met at the University of Cambridge during their PhDs. They believe that secure systems must be simple and transparent. In September 2025 they founded Light Squares to bring this vision to life and solve real-world problems through consulting and innovative solutions.
