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Illustration: Rebecca Zisser / Axios

Bitcoin and Ethereum are no longer just for libertarian geeks and their Reddit pals. That became clear last week when a day-long conference about cryptocurrency hedge funds in San Francisco was filled with suits instead of t-shirts and hoodies. Cryptocurrency is the next "it" thing in trading, and the professionals know it. (Except for Jamie Dimon.)

Why it matters: Regulators around the world are grappling with the rise of cryptocurrencies and, more recently, initial coin offerings. This will become increasingly important as more financial professionals want to make a business out of it.

Key quote: "In this space I think we will soon see one person generate $1 billion of value." — Ethereum co-creator Vitalik Buterin

Hot conference topics:

Security: "I don't think it's realistic to assume that no one at the fund can steal the money," said Ari Paul, BlockTower Capital managing partner. "Security at the moment is about not losing LP funds."

Regulation: "The IRS is really not gonna understand the technology," said Arthur Bell tax advisor Cynthia Pederson, adding that fund managers have to make sure they clearly explain everything to the agency.

Risk management: Common questions from fund investors involve exchange hacks and shutdowns, said some fund managers. Security vulnerabilities in the protocols (or cryptocurrencies) themselves also add risk.

Definitions: Though the Commodity Futures Trading Commission declared cryptocurrencies to be commodities in 2015, some experts think regulators will have to take a more nuanced view as new tech emerges.

ICOs: With some groups now raising hundreds of millions of dollars through initial coin offerings, they'll need to hire people to manage the funds. Unlike traditional startups that usually have an established business by the time they raise such amounts, these issuers rarely have more than a team of developers and an white paper.

Go deeper

Updated 6 hours ago - World

Skripal poisoning suspects linked to Czech blast, as country expels 18 Russians

Combined images released by British police in 2018 of Alexander Petrov (L) and Ruslan Boshirov, who are suspected of carrying out an attack in the in the southern English city of Salisbury using Novichok, a military-grade nerve agent, and also the2014 Czech depot explosion. Photo: Metropolitan Police via Getty Images

Czech police on Saturday connected two Russian men suspected of carrying out a poisoning attack in Salisbury, England, with a deadly ammunition depot explosion southeast of the capital, Prague, per Reuters.

Driving the news: Czech officials announced Saturday they're expelling 18 Russian diplomats they accuse of being involved in the blast in Vrbětice, AP notes. Czech police said later they're searching for two men carrying several passports — including two with the names Alexander Petrov and Ruslan Boshirov.

Indianapolis mass shooting suspect legally bought 2 guns, police say

Marion County Forensic Services vehicles are parked at the site of a mass shooting at a FedEx facility in Indianapolis, Indiana, on Friday. Photo: Jeff Dean/AFP via Getty Images

The suspected gunman in this week's mass shooting at a FedEx facility in Indianapolis legally purchased two "assault rifles" believed to have been used in the attack, police said late Saturday.

Of note: The Indianapolis Metropolitan Police Department's statement that Brandon Scott Hole, 19, bought the rifles last July and September comes a day after the FBI told news outlets that a "shotgun was seized" from the suspect in March 2020 after his mother raised concerns about his mental health.

U.S. and China agree to take joint climate action

US Special Presidential Envoy for Climate John Kerry waves as he arrives at the Elysee Presidential Palace on March 10, 2021 in Paris. Photo: Chesnot/Getty Images

Despite an increasingly tense relationship, the U.S. and China agreed Saturday to work together to tackle global climate change, including by "raising ambition" for emissions cuts during the 2020s — a key goal of the Biden administration.

Why it matters: The joint communique released Saturday evening commits the world's two largest emitters of greenhouse gases to work together to keep the most ambitious temperature target contained in the Paris Climate Agreement viable by potentially taking additional emissions cuts prior to 2030.