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Photo: Burhaan Kinu/Hindustan Times via Getty Images

Motherboard reported Sunday that a former member of a hacker group notorious for taking over social media accounts was arrested earlier this month, citing law enforcement and members of the group.

Driving the news: According to Motherboard, authorities arrested a onetime member of "Chuckling Squad," a notorious group that, among other mischief, took over Twitter CEO Jack Dorsey's Twitter account in August. That hacker, an unnamed minor, had previously been kicked out of the group

How it works: Chuckling Squad is a prolific user of SIM swapping, a technique through which hackers cajole cellphone companies to transfer a victim's phone number to phones that the hacker controls. From there, SIM swappers can use their access to a supposedly secure phone number to reset account passwords or otherwise tamper with accounts.

The big picture: The lesson from groups like Chuckle Squad and others using this mode of account takeover is that for people who require the most security and attach cell numbers to their accounts, it's important to turn on whatever added protections a mobile provider has to prevent SIM swapping. Those often including adding a passcode to move the phone number or to only allow that service to be done in person. 

Go deeper: The rule-free world of federal officials' personal accounts

Go deeper

Reports: CIA finds "Havana Syndrome" unlikely caused by foreign campaign

CIA Director William Burns testifies during a Senate hearing on Capitol Hill last April. Photo: Saul Loeb-Pool/Getty Images

A preliminary CIA report rules out a foreign global campaign as the cause of American and Canadian diplomats affected by a mysterious illness known as "Havana syndrome," per multiple reports.

Why it matters: Some lawmakers had suggested the sometimes debilitating illness was due to directed energy attacks. But CIA officials told the New York Times that most of the 1,000 cases reported to the government could be "explained by environmental causes, undiagnosed medical conditions or stress." This finding has angered some victims, per the NYT.

Jan. 6 panel subpoenas 2 far-right "America First" activists

The House panel investigating the Capitol riot, from left; Reps. Bennie Thompson, Liz Cheney, Adam Kinzinger and Jamie Raskin on Capitol Hill in December. Photo: Drew Angerer/Getty Images

The House select committee investigating the Capitol riot issued subpoenas Wednesday for far-right leaders Nick Fuentes and Patrick Casey, who allegedly encouraged followers to go to D.C. and challenge the 2020 election results.

Why it matters: The action underscores the panel's increasing focus on rallies held ahead of the Capitol attack and how extremists were drawn to former President Trump's baseless claims of widespread voter fraud, per the New York Times.

Democrats fail to change Senate rules to pass voting rights bill

Senate Majority Leader during a news conference in Washington, D.C., on Wednesday. Photo: Alex Wong/Getty Images

Democrats failed Wednesday night to change Senate filibuster rules to pass the voting rights bill, with Sens. Joe Manchin (D-W.Va.) and Kyrsten Sinema (D-Ariz.) voting with Republicans.

The big picture: The failed effort came after Senate Republicans blocked the voting rights measure from coming to a final vote earlier Wednesday.