Computer network security of industrial controls is notoriously poor (for example, look into "SCADA vulnerabilites").  When I [requested](https://www.muckrock.com/foi/seattle-69/smart-meter-security-audit-plans-schedules-proposals-contracts-discussion-results-seattle-10378/) access to records related to security audits of City Light's vendors, those vendors successfully [sued City Light and me](https://www.theregister.co.uk/2016/05/27/phil_mocek_seattle_smart_meters) to block release of the records after City of Seattle delayed processing of my request to facilitate launching of the suit, then failed to present any defense in court of the public's right to know.