A woman walks by a Kyivstar store, a Ukrainian telecommunications company, in Kyiv on December 12, 2023. Ukraine’s main phone operator denounced an act of “war” on December 12, 2023 after the hacker attack that led to large-scale failures in its services. (Photo by SERGEI CHUZAVKOV / AFP / Getty Images)

Ukraine’s largest mobile communications provider down after apparent cyber attack

Millions of customers lost mobile phone and home internet service as a result of what Kyivstar said was a cyber attack.
The American actor Elijah Wood, pictured here at a Hollywood premiere in March, was one of the American actors tricked into recording videos used in a Kremlin information operation. (Photo by Kevin Winter/Getty Images)

Russian information operation uses US celebrity Cameos to attack Zelensky

Kremlin propagandists tricked a half dozen celebrities into recording videos urging Ukraine's president to seek treatment for substance abuse.
PARASKOVIIVKA, UKRAINE – DECEMBER 17: An electric substation of salt mine on December 17, 2022 in Paraskoviivka, Ukraine. Now local residents remain in the village and the military of the Armed Forces of Ukraine. There is no electricity, the village is under constant shelling. Communication works only on the pedestrian bridge via the railway. The salt mines of the state enterprise “Artemsil” stopped working due to hostilities at the end of May. (Photo by Vitalii Pavlenko/Global Images Ukraine via Getty Images)

Russian hackers disrupted Ukrainian electrical grid last year

The notorious Russian hacking group known as Sandworm took down a substation that caused a brief outage, according to a new Mandiant report.
A mural near the Giraffe shopping mall depicting two girls drawing a lightning bolt in the colors of the Ukrainian flag on September 25, 2023 in Bucha, Ukraine. (Photo by Andrii Nesterenko/Global Images Ukraine via Getty Images)

Russian hacking operations target Ukrainian law enforcement

Ukrainian officials say Russian hackers targeted counter-intelligence and law enforcement data during the first half of this year.