Android is the most effective platform.
However, something to think about
is, if you have a fully updated and fully patched Android,
it is really, really secure.
The ones that are affected the most
are the ones that are no longer being updated and no longer
being patched.
Also, a rooted Android is obviously
more susceptible than one that is locked down.
iOS attacks also exist.
There are attacks available for every single mobile device
out there, I'm sure.
It's just, we may not be aware of it.
When we look at iOS, they're sophisticated.
Typically, if the devices are not even jailbroken,
and someone lands on these phones.