This has been implemented for the WebApp and for all the account settings. You can enable it in PC Monitor Manager -> Account Details -> Security.
As for the mobile, we've added Device Policies and Default Device Policies (in PC Monitor Manager -> Registered Devices) - you can define access level policies to the computers for a specific mobile device as well as define the default policies (you can disable all new devices from having any access unless a specific policy is defined for each).
As for sending an email / sms, if this is going to be sent to the same mobile PC Monitor runs on that's not good. That's why we went for Mobile Device Policies.