MassBrowser is a free to use and open source tool designed to circumvent Internet censorship.

Subgraph conducted a security assessment of MassBrowser in March 2020. For the purpose of testing, Subgraph deployed an isolated MassBrowser network. The audit was limited in scope to the implementation and configuration of the various MassBrowser architectural components. There was also some consideration of the system’s design with respect to any significant negative contribution to the technical security posture (i.e. identification of severe technical design faults).

Subgraph tested resistance to attacks against the software components as they exist today. This included attacks by malicious participants operating within the system, as well as identifying more passive weaknesses in components and their interaction with one another.

The full report and summary of findings can be found below.

MassBrowser Security Assessment