Halloy is an IRC application written in Rust. In versions on *nix and macOS prior to commit f180e41061db393acf65bc99f5c5e7397586d9cb, halloy creates its config directory and files using default umask permissions, which typically results in "0644" on files and "0755" on directories. This allows any local user on the system to read plaintext credentials stored in "config.toml" or referenced "password_file" paths. Commit f180e41061db393acf65bc99f5c5e7397586d9cb patches the issue.