Protection will be available first to Google Apps Premiere, Government, and Education edition users, at no extra charge.
A researcher from the SANS Institute asked the question to readers of his blog, and the answers raise concerns.
Google, however, says SMobile Systems' report has problems.
Symantec's "Norton Everywhere" initiative plans to extend protection and usability to every Internet-connected device.
Customers in shopping centres are having their every move tracked by a new type of surveillance that listens in on the whisperings of their mobile phones.
The technology can tell when people enter a shopping centre, what stores they visit, how long they remain there, and what route they take as they walked around.