Japanese mobile operator NTT Docomo has said it can track smartphones on its network using remotely activated GPS, without the owner s knowledge or consent.
Without the need to get permission, Docomo developed software that could discreetly track phones, while leaving the owner unaware.
The network will introduce five smartphones over the next months with the functionality installed.
Information like this is valuable to companies and advertisers.
Keeping data stored on smartphones secure, and our privacy in general, has been under the spotlight for some time.
Most recently, Apple s very public spat with the FBI over breaking the encryption on an iPhone highlighted the issue, but Docomo s stance isn t quite so pro-consumer.