Authentication (Files on your iPhone or iPad)
It is up to you to decide if you want to require users to authenticate into your mobile file on their iOS device. Many developers will choose to use an auto-enter account and password so local users won't be asked to authenticate each time they open the mobile file. This makes more sense in synced files than others because a) the file often doesn't have any/much data in it, b) you can instruct users to secure the device with strong passwords, instead of securing the file, and c) the mobile file has no account information (no access) for the hosted files.
If you're concerned about theft of the mobile device, check out the Remote Wipe available here: http://www.apple.com/ipad/built-in-apps/find-my-ipad.html Note that you can also turn off "simple passcodes" in your iPhone or iPad's settings to use longer, more secure device passwords.
If you do choose to require authentication in the mobile file, users will be asked to authenticate each time they open the file. If you're breaking connections to the served files often, users will also be asked to log in after downloading a new version of the mobile file.
Users will also be asked to authenticate each time they return to an open mobile file (such as after switching away to another app, or after closing their iPad) unless you use the fmreauthenticate extended privilege to control when users will be required to reauthenticate after not using FileMaker Go for a specified period of time. You'll likely want to add this to the privilege set in effect on your iOS Devices.
Our Recommendations: Your Mobile Files
So here are our recommendations for securing your mobile files (you can do this to GoZyncMobile as well if you wish).
When it comes to your hosted files, GoZyncMobile will open your hosted solution (your "mothership" files) at the beginning of a sync session. This is when users will be asked to log into your solution.
Our Recommendations: Your Hosted Files
You really don't need to secure your files any differently than you do now: syncing users will be asked to authenticate when they sync begins and if their login fails the sync will abort.
Our Recommendations: GoZyncHosted
GoZyncHosted doesn't have any file references to your hosted solution (your "mothership" files) but it does contain your configuration instructions, so you don't want just any user messing around in there. We've created two privilege sets in GoZyncHosted: "Administrator" and "Sync". Administrator lets you admin licenses and devices, and and "Sync" is a lower level access that lets users sync but not change the sync settings. We recommend you default GoZyncHosted to the sync privilege set, and then log in as an administrator user when you want to make changes to the sync settings.
To do this, open GoZyncHosted and run the script "Manage File Options" from FileMaker's Scripts menu (you'll need to be logged in as an administrator). The under the "Open" tab, enter the default Account and Password for the "Sync" privilege set: both of which are "Sync":
Then, when you need to log in as an admin user, run the "Relogin" script from GoZyncHosted and enter your Admin account and password.
You'll find this "Sync" privilege set in GoZyncMobile as well so if you log GoZyncMobile in using "Sync" in your Upon Opening script AND GoZyncMobile and GoZyncHosted have the same account name and password for the "Sync" privilege set, you can turn off the File Options account in GoZyncHosted. That is ideal.
So in this ideal setup it would look like this:
File Access Protection: don't use it
File Access Protection was introduced in FM11 so that only authorized files can use references to other files. That's fine in a networked system where all files are on the same server but a nightmare in a distributed system where you have many copies of GoZyncMobile needing to talk to a hosted file.
For example, you authorize GoZyncMobile then *make a copy of it* during the prep and upload phase: that new copy is a *new file* and is thus not authorized. Each time a mobile user downloads GoZyncMobile, *that* is a new copy as well. So we don't think you can use file access protection with synced (distributed) solutions.
Fortunately, if you've turned this on, you can turn all this off by selecting File / Manage / Security / File Access in both GoZyncHosted and in your hosted file.
Changing default Full Access accounts
You'll likely want to switch the default Full Access account for GoZyncMobile from Admin / blank which is the FileMaker default for admin accounts and a bit easy to guess.
Enterprise customers: MDM
For larger customers, Apple has a suite of Mobile Device Management (MDM) applications to help secure devices, push profile changes, pull applications and monitor password compliance. This can help more thoroughly secure your iOS devices. Learn more here: http://www.apple.com/iphone/business/integration/mdm/
Your Data in Transit
Does our data pass through SeedCode's servers or through any web applications?
GoZync doesn't send any customer data (FileMaker records) through our servers during the sync: the only communication during a sync is between your customers' mobile file and their hosted file. And that's all done over FileMaker networking using FileMaker Scripts.
GoZync only uses SeedCode's servers in a couple instances and none of this involves your data: