Considering this, do Backblaze regularly undergo audits to make sure there aren't any security and privacy holes that go undetected? I know now all services do

Considering this, do Backblaze regularly undergo audits to make sure there aren't any security and privacy holes that go undetected? I know now all services do this, but Mullvad at least have built a nice VPN reputation on account of that. Might be worth looking into, if nothing else then for public perception reasons.