Online human resources management company UKG-Ultimate Kronos Group admitted that its cloud was attacked by ransomware and suggested that it may take several weeks for its customers to regain access.

UKG stated that the attack affected some of its businesses in the Kronos private cloud, including UKG Workforce Central, which allows employers to remotely track attendance, schedules and process payroll. Other affected plans include UKG TeleStaff, Healthcare Extensions and Banking Scheduling Solutions.

The company said that programs not included in the private cloud, including UKG Pro, UKG Ready, UKG Dimensions or any other UKG products or solutions, do not appear to be affected by the attack.

“Given that it can take up to several weeks to restore system availability, we strongly recommend that you evaluate and implement alternative business continuity agreements related to the affected UKG solutions,” wrote UKG Executive Vice President Bob Hughes.

Some of the company's well-known customers include Tesla, Marriott, Emma, ​​and Sony Music. According to the UKG press release, NJ Transit will start using UKG Dimensions in October 2020.

Several customers expressed disappointment in the company’s lack of communication in their comments. One person pointed out that the company advises customers to use their business continuity plan, but does not have a plan of its own.

Contact reporter Dan Alexander via Dan.Alexander@townsquaremedia.com or via Twitter @DanAlexanderNJ