Smorg,
Here is a good start on Zs:
https://www.nojitter.com/post/240173625/zscaler-private-acce…
Cannot find the link on my Windows computer now to Zenith, but GE’s CIO gave a talk as to how Zscaler enabled GE to get rid of their data center and instead, with much more security, use the internet as their network. That is the disruption. Moving to SD-Wan is yet another area where Zscaler disrupts.
I will link to the Zenith presentations tonight when I get back to an Apple device.
However, I have linked to the above and to the Zenith user convention previously. Microsoft had presentations from their CEO and CIO (all this for a tiny upstart Zscaler, whom is enabling the security from Azure for 365), Siemens gives a story similar to GE, VMWare uses Zscaler as its go to security, as does Salesforce (but the presenter from Salesforce you can skip, she mostly gave a talk about the charity she is promoting), At&T and Zscaler for SD-Wan, basically all of them but the Salesforce talk will pretty much sum it up for you with the context of the linked article above.
Keep in mind that no one else runs an appliance free security product that is 100% cloud as Zscaler does. Whether or not relevant, Symantec, the only other competitor in the leader quadrant in this category (no one else, not even Cisco made the leader quadrant) just reported that their billings declined 20% and the Board of Directors is under attack by the largest shareholder to redress the issue (Symantec had bought Blue Coat - which was #1 and sells tons of appliances in the data center). Was this because customers no longer want to deal with appliances anymore when they can go to the cloud? Perhaps.
But once you review the prior thread on Zscaler here, and review the above and the presentations that I will link to again, that will give you a good gist of it all.
Oh yes, also read their earnings call. They have only had one. That is very informative.
Tinker