Senator questions Apple on iPhone fingerprint technology

“You can't change your fingerprints,” he said. “You have only ten of them,” and they’re unique to each user.

Franken did applaud the tech giant for making it easier for users to secure their smartphones and taking initial steps to protect fingerprint data.

“It's clear to me that Apple has worked hard to secure this technology and implement it responsibly,” Franken wrote.

Franken asked Apple to explain if the fingerprint data can be extracted or converted, how Apple apps such as iTunes and the App Store interact with the fingerprint data and whether Apple plans to share the fingerprint data with third parties, including the government.

Franken also asked the company to explain how it thinks privacy and surveillance laws, including the Patriot Act and the Stored Communications Act, apply to users’ fingerprint data.