It seems like companies are doing everything they can to squeeze extra revenue out of their customers these days by taking advantage of the personal usage data they collect. Google (GOOG) and Facebook (FB) are likely the two tech companies that are most often associated with turning usage data into dollars — Google isn’t even shy about it anymore — but plenty of other companies collect data from their users and use it to make money in a variety of ways. Two such companies, as it turns out, are Verizon Wireless (VZ) and AT&T (T).
They will share your data unless you take action and request that the company keep your info private. Worse still, users only have 30 days from the time they activate a new smartphone to opt out of having their usage data shared.