c$)$ Based on the description below provided by Privacylnvader about their Biz$2$Biz communication app, identify three secure design principles have been violated, explain why, and suggest suitable fixes.

Biz$2$Biz is our own app developed to share contact details of businesses who are looking to network with other specific local businesses and is available for Android and iOS devices. All network communications are private and secured using a combination of open$-$source and our own unbreakable encryption protocols. All platform activity $($e$.$g$.$ business nefworking requests, nearby business lookups, registration and authentication$)$ are channelled through our secure server. Upon initial sign in$,$ the app generates a $10-$year security token, so the users never have to verify their credentials again. To maximise exposure of the platform, there is no limit to the number of employees associated with each business account. To encourage participation, all employees have full access to their business' profile and networking contacts on the platform.