For example, the law might require Facebook to disclose more about how third-party apps receive information about users through their friends, Ms. Ozer said.

WSJ: Online-Data Bill Sets Up Privacy Fight

"There is no good reason for Apple to not include information about privacy practices on their Siri FAQ page, " Ozer said in an email message.

CNN: Apple reveals how long Siri keeps your data

But Nicole Ozer says Apple should go further.

CNN: Apple reveals how long Siri keeps your data

This is the first time that Apple has said how long it's keeping Siri data, but according to Nicole Ozer, the American Civil Liberties Union lawyer who first brought these Siri privacy questions to our attention, there's still more that Apple could do.

CNN: Apple reveals how long Siri keeps your data

"There is real impact for individuals when they don't know how their information is being collected and when it is being shared in ways they don't want, " said Nicole Ozer, a policy director at the American Civil Liberties Union of California, which co-sponsored the bill.

WSJ: Online-Data Bill Sets Up Privacy Fight