From the wikipedia page [1]: > The third party should be permitted access only under carefully controlled conditions, as for instance, a court order. Thus far,

From the wikipedia page [1]: > The third party should be permitted access only under carefully controlled conditions, as for instance, a court order. Thus far, no system design has been shown to meet this requirement fully on a technical basis alone. All proposed systems also require correct functioning of some social linkage, as for instance the process of request for access, examination of request for 'legitimacy' (as by a court), and granting of access by technical personnel charged with access control. The social issue is a significant problem. How do you make sure court officials are not bribed? Who has access to the key escrow service, and what sort of checks make them trusted? Employees snoop on things all the time [2, 3, 4]: how are you going to ensure this does not happen with all communications for an individual? [1]: https://en.wikipedia.org/wiki/Key_escrow https://en.wikipedia.org/wiki/Key_escrow [2]: https://www.wired.com/2008/05/five-irs-employ/ https://www.wired.com/2008/05/five-irs-employ/ [3]: https://reason.com/2015/05/20/more-irs-employees-abuse-access-to-taxpa/ https://reason.com/2015/05/20/more-irs-employees-abuse-acces... [4]: https://www.accountingtoday.com/news/irs-celebrity-snoop-gets-three-years-probation https://www.accountingtoday.com/news/irs-celebrity-snoop-get...