The slot machines fell silent over the weekend at Jackpot Junction Casino Hotel. Guests starting Thursday began noticing phones not working, bingo night cancellations and reservations that they could not change.
The casino took some systems offline after a cyberattack affecting the Lower Sioux Indian Community, said Robert “Deuce” Larsen, president of the community’s council, which runs the casino.
“Jackpot Junction recently identified a cybersecurity incident involving unauthorized access to certain systems,” Larsen said in a post on Facebook Monday night. The casino is working with “third-party experts,” Larsen said.
A criminal group named RansomHub claimed an attack on the casino in a message on the dark web posted on Monday.
