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Kronos hack will likely affect how employers issue paychecks and track hours

FILE PHOTO: A man holds a laptop computer as cyber code is projected on him in this illustration picture taken on May 13, 2017. REUTERS/Kacper Pempel/File Photo

A ransomware attack on one of the largest human resources companies may impact how many employees get paid and track their paid time off.Human resources management company Ultimate Kronos Group (known as Kronos) said it suffered a ransomware attack that may keep its systems offline for weeks.Companies that rely on the software are working to find backup plans to ensure their employees are paid — including issuing paper checks, some for the first time in years. Kronos is used widely around the country by businesses and governments to track employees' hours and to issue pay. Its many customers include municipal governments, university systems and large corporations. (NPR also uses Kronos.)According to a spokesperson for UKG, the ransomware has only affected customers that used a particular product called the Kronos Private Cloud. "We took immediate action to investigate and mitigate the issue, have alerted our affected customers and informed the authorities, and are working with leading cybersecurity experts. We recognize the seriousness of the issue and have mobilized all available resources to support our customers and are working diligently to restore the affected services," the spokesperson said in a statement to NPR.

What employers are affected?

Dozens of companies and governmental organizations announced this week that they had been affected by the attack — a number that falls far short of its likely impact, given the ubiquity of Kronos.The hack included scheduling products specifically designed for health care systems, financial institutions and public safety workers. Over the course of Monday and Tuesday, many employers announced to their staffs that they had been affected — such as employees of New York's Metropolitan Transportation Authority, hospital workersin San Angelo, Tex., and public water workers in Honolulu. The city of Cleveland, which employs thousands of workers, said in a statement Monday that it was among the employers who rely on the hacked software, along with the Oregon Department of Transportation. And a number of universities, such as the University of Utah, George Washington University and Yeshiva University in New York, also reported being affected.

How does it affect paychecks?

The extent to which individual employees are affected depends on how their employers used the software. Employers that use Kronos to clock employees in and out of shifts may ask workers to manually track start and end times, while companies that rely on Kronos to issue paychecks may send out paper checks so long as the service is down. Employers may also choose to issue generic paychecks that compensate employees for a baseline number of scheduled hours, rather than the actual hours worked — and later issue corrections as needed. The Fair Labor Standards Act requires employers to track hours worked by employees no matter the timekeeping method used (in other words, via Kronos or a manual time card or otherwise), then pay their workers promptly. Individual states may further govern exactly how often those paychecks must come.

What about personal data?

As for personal data, what employee information is stored in Kronos — and therefore could be exposed to attackers — varies by employer. In statements to employees, several companies said that they believed the most sensitive personal data, including Social Security numbers, had not been breached — but the city of Cleveland warned employees that the last four digits of Social Security numbers could be at risk.

How long before the service is fixed?

The service could be out for "several weeks," according to a blog post by Bob Hughes, the company's chief customer and strategy officer. The post was published Sunday, though it was later inaccessible. Because the fix could take long enough to affect payroll and scheduling operations, the company has urged employers to seek out "alternative business continuity protocols" while they work on a fix.

Is this related to Log4j?

As of Tuesday, it was not clear how the ransomware attackers were able to knock the software offline. The incident comes on the heels of revelations about a major vulnerability in a piece of software called Log4j that is frequently used with the programming language Java. The Log4j flaw allows a remote hacker to take over a device or system running the software, allowing them to, among other things, install crypto miners or steal private data. Because Java is among the most widely used programming languages in the world, cybersecurity researchers have warned that the effects could be widespread. It is not yet a given that the Kronos hack is related to the Log4j vulnerability, said Allan Liska, an intelligence analyst at the cybersecurity firm Recorded Future. "It is likely the attacker had been in Kronos for weeks launching the attack before Log4J was reported. That doesn't mean the two aren't connected. But the best evidence right now says otherwise," he told NPR. Copyright 2021 NPR. To see more, visit https://www.npr.org.