Node does have a permissions system, but it's opt in. Many runtimes/interpreters either have no sandbox at all, or they're opt in, which is why Deno's sandbox i

Node does have a permissions system, but it's opt in. Many runtimes/interpreters either have no sandbox at all, or they're opt in, which is why Deno's sandbox is an upgrade, even if it's not as hardened as iptables or Linux namespaces.