If you’re a little bit techie, I recommend trying the free iOS version to glimpse the secret life of your iPhone.” Read the article He developed an app called Privacy Pro that identifies and blocks many trackers. In a world of data brokers, Jackson is the data breaker. “I know the value of data, and I don’t want mine in any hands where it doesn’t need to be,' he told me. Why should it even leave your phone? Why should it be collected by someone when you don’t know what they’re going to do with it?' says Patrick Jackson, a former National Security Agency researcher who is chief technology officer for Disconnect. According to privacy firm Disconnect, which helped test my iPhone, those unwanted trackers would have spewed out 1.5 gigabytes of data over the span of a month. “In a single week, I encountered over 5,400 trackers, mostly in apps. Do you know who your iPhone is talking to?