For Many Years,Jack Parsons Used Only Conventional Mail or Couriers

Essay

For many years,Jack Parsons used only conventional mail or couriers to send confidential documents to clients.He is wary of using email or the Internet for sending or sharing information,and is very concerned about the possibility that electronic communication may result in leaks of privileged or confidential documents.What precautions can Jack take to make sure that email and its attachments are kept secure?