Blue Yonder Group Inc., a supply chain management software company, was hit with a ransomware the attack that affected many customers, incl Starbucks.

The coffee giant uses Blue Yonder software to schedule shifts and track the hours of its workforce in North America, reports Seattle Timesso they went back to the stone age and were forced to rely on good pen and paper for their records. (If their ability to correctly spell our names on the cups is any indication, this could go very wrong.)

Starbucks informed its workers in an email, obtained by Bloombergthat in order to receive payments on November 29, they will pay for shifts scheduled for the week of November 18 — whether those hours are correct or not. Employees may have worked overtime or taken days off during that period.

“We hope this outage will not extend to affect payroll processing for the coming weeks,” the company said in the message. “However, we are continuing to look for ways to improve accuracy and payroll processing if the outage continues.”

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