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Illustration: Rebecca Zisser/Axios

From getting a license to paying taxes, we routinely give cities granular data on who we are, where we live, what we do and how much we earn.

Why it matters: “City Hall has a treasure trove of information about you,” says Ann Cavoukian, a privacy expert at Ryerson University. “You have no choice but to give them information.”

For example: New York's LinkNYC WiFi hotspots, which also have cameras, can analyze images of people passing by particular kiosks. Over time, images could be linked to their identity and other sensitive data, like credit scores.

  • Theoretically, that information could then be used to place ads for payday loans around that kiosk, says Katya Abazajian, Open Cities director at the Sunlight Foundation.

If predictions turn out to be true, 5G-connected devices (dashcams, bikes, umbrellas, clothing, keys) and city infrastructure (streetlights, stop signs, utility lines) equipped with elaborate sensor networks will be able to pinpoint your real-time location.

  • But the explosion of data and always-connected items will lead to new and unpredictable applications.
  • For example, sensors could track how frequently you go to the gym or cameras could see how often you run red lights — data that insurance companies might be interested in, Abazajian said.

The bottom line: "As tech companies get more and more consent from people to collect data on how they live their lives, there are going to be more unexpected uses of that data to shape your access to consumer goods or any services," says Abazajian.

  • "It's all about who is sharing the data with whom. And we just don't know that right now."

Go deeper:

Go deeper

Senate offices closing on Friday ahead of pro-Capitol riot rally

Security fencing outside the U.S. Capitol ahead of a planned "Justice for J6" rally in Washington, D.C.. Photo: Stefani Reynolds/Bloomberg via Getty Images

Multiple Senate offices are planning to close Friday amid security concerns around Saturday's rally in support of jailed Jan. 6 rioters, multiple senate aides who were told to work remotely on Friday tell Axios.

Why it matters: The Capitol this weekend will face its first large-scale security test since the deadly Jan. 6 attack. In the meantime, House and Senate offices are taking precautionary measures to ensure their staff remains safe.

State Department partners with aid group welcoming Afghan refugees to U.S.

Secretary of State Antony Blinken speaking in Washington, D.C., on Sept. 14. Photo: Mandel Ngan/POOL/AFP via Getty Images

Secretary of State Antony Blinken announced Thursday that the State Department is partnering with Welcome.US, an aid group helping to welcome and support Afghan refugees who fled their country for the U.S.

Why it matters: The partnership is part of the Biden administration's Operation Allies Welcome, which involves the processing and resettlement of the more than 65,000 Afghans evacuated during the U.S. military withdrawal from Afghanistan.

Workout economy hangs fate on celeb trainers

Illustration: Annelise Capossela/Axios

At-home workout companies are turning fitness instructors into stars.

What's new: Tonal, which makes a wall-mounted, strength training device, said its machines will start streaming live classes in October.