Based on some of the things I have read and what I recall reading about in the past...
if the issue seems to be confined to the mobile platform...it may also be confined to certain mobile platforms such as the "android" platform.
I believe Robert is an apple user so he would not be effected. Now, if I recall correctly there was a lot of hype or discussion over a "serious security problem" with android, dating back to ....2015!
2015 appears to be the year all this centers around...
A patch was created but it did not work...I don't know the full history and corrective actions taken since then, but it appears someone has also stumbled across this intentionally or accidentally and been able to exploit this security patch issue.
It sounds like something much more involved than just what WGT can address. Google appears to also be involved.
WGT doesn't have control over all of the external mobile devices and services so how can they be expected to fix something like this, they provide a service that "piggy backs" these other platforms...one of which may have a security issue that has gone unresolved.
I do not know any of this with absolute certainty, I am just trying to put a few pieces together myself!