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A researcher at Duo Security found a new use for radio signals. Cyber volunteers quantify their progress. And senators want more from CISA and Cyber Command. This is CyberScoop for Wednesday, April 22.

Cool trick!

It’s not enough anymore for researchers to insert malicious software into an air-gapped network. Now, the challenge is getting data out. On Wednesday, Mikhail Davidov, lead security researcher at Duo Labs, showed how a radio, antenna, and a script could be used a capture a signal emitted by an air-gapped computer’s GPU and exfiltrate data. If the technique sounds like something out of an espionage playbook, that’s because it is. Sean Lyngaas had the exclusive.

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Senators urge Cyber Command, CISA to step up

A bipartisan group of senators sent a letter to both the Department of Defense and Department of Homeland Security asking them to take more action to defend the U.S. healthcare sector against hackers exploiting the coronavirus pandemic. The senators warned that if Gen. Paul Nakasone, who is in charge of Cyber Command, and Christopher Krebs, CISA director, don’t take more action to fend off attacks, hackers could interfere with medical professionals trying to deliver urgent care. Dive in for more with Shannon.

Watchers on the wall

A bit of bright news amid the gloom: a group of volunteer infosec pros are putting a sizable dent in malicious hacking during the coronavirus pandemic. The Cyber Threat Intelligence League — 1,400 volunteers from around the world — say they've identified more than 2,000 software vulnerabilities at health care facilities and other organizations. “The threats are coming in like a firehose; as fast as we can take things down, there are new [threats] there,” said Marc Rogers, an Okta executive and one of the organizers. The group is also considering how it can help the Czech Republic, where hospitals have been targeted in recent days. Sean has more context.

Brazilian banks in the crosshairs, again

IBM researchers on Tuesday warned of an insidious Android app that’s trying to steal users’ login credentials, and their money, by impersonating Brazilian banks. The trojan steals text messages that people used to log into their bank accounts. Scammers are sending instructions to potential victims on how to download the app from a third-party source, beyond the reach of the Google Play Store. The threat could extend beyond Brazil: Some of the banks targeted operate in Spain, Portugal and across Latin America. Sean has the story.

Maybe this decade?

The 2020 presidential election is going to be here, and like anything else, it’s going to be impacted by the global pandemic. Some tech-savvy people want to vote online, while others are pushing for the low-tech means of vote-by-mail. On the latest Securiosity, Imperva CTO Kunal Anand spoke with CyberScoop Editor-in-Chief Greg Otto about the feasibility of each, no matter if it occurs during a pandemic. Listen here.

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