According to NSA whistleblower Edward Snowden,
the iPhone has secret spyware that allows governments to watch users without their knowledge and consent. Snowden doesn't use the phone because of the hidden software embedded in it, which his lawyer says can be remotely activated to watch the user. Anatoly Kucherena explained to Russian news agency RIA Novosti that Snowden never uses an iPhone and that instead, he uses a simple phone.
Well, I won't be surprised if they did, after all Microsoft are the 1st company that willingly submit to NSA scheme :-)