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There could be an estimated 2.3 billion connected devices in smart cities this year — a 42% increase since 2016. But the ubiquity of these devices is becoming a hacker's paradise, and smart cities could quickly become a security nightmare.

What they are: Smart cities "rely on interconnected devices to streamline and improve city services based on rich, real-time data," according to Harvard Business Review. That could be everything from sensors that reduce the energy used in street lights to devices that regulate the distribution of water.

The goal is to improve a city's livability and to utilize smart technologies to streamline its infrastructure.

The problem: These devices rely on real-time, accurate information, so if a hacker gets hold of their network, the entire city's programming could be thrown off. This has already happened: Hackers set off 158 emergency sirens throughout Dallas on April 8.

Smart cities:

  • In South Korea, one city installed smart sensors to regulate water and energy, slashing building operating costs by 30 percent.
  • Barcelona uses smart water meter technology, which saved the city $58 million annually.

One systemic flaw: "Cities currently using a supervisory control and data acquisition (SCADA) system, are particularly susceptible to frequent hacks due to poor security protocols. Though SCADA systems control large-scale processes and unify decentralized facilities, they lack cryptographic security and authentication factors. If a hacker targets a city's SCADA system, they could threaten public health and safety, and shut down multiple city services from a single entry point."

What's next: There will be an estimated 50 billion connected devices by 2020. Smart cities will need to secure their critical, digital infrastructure from hackers seeking to wreak havoc on the area.

Go deeper

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5 mins ago - Economy & Business

The European Central Bank and the market's moment of truth

ECB president Christine Lagarde; Photo: Chip Somodevilla/Getty Images

The biggest event for markets this week will be Thursday's meeting of the European Central Bank's governing council and the press conference following it from ECB president Christine Lagarde.

Why it matters: With interest rates jumping around the globe, investors are looking to central bank heads to see if they will follow the lead of Fed chair Jerome Powell, who says rising rates are nothing to worry about, or Bank of Japan governor Haruhiko Kuroda, who has drawn a line in the sand on rates.

Mike Allen, author of AM
46 mins ago - Politics & Policy

Manchin's next power play

Photo: "Axios on HBO"

Sen. Joe Manchin (D-W.Va.), America's ultimate swing voter, told me on "Axios on HBO" that he'll insist Republicans have more of a voice on President Biden's next big package than they did on the COVID stimulus.

The big picture: Manchin said he'll push for tax hikes to pay for Biden's upcoming infrastructure and climate proposal, and will use his Energy Committee chairmanship to force the GOP to confront climate reality.

Why picking a jury for the Derek Chauvin trial is so hard

Illustration: Eniola Odetunde/Axios

The tough task of selecting a jury for former MPD officer Derek Chauvin's trial for the killing of George Floyd is set to begin Monday.

The state of play: "This case may be the most highly publicized criminal trial in a long time. ... That means that it's harder to find people who really have an open mind," Richard Frase, University of Minnesota Law School professor of criminal law, told Axios.