News of Panera’s data leak follows a security breach that exposed the email addresses, user names, and passwords of 150 million users of MyFitnessPal, a fitness-tracking app owned by Under Armour. On March 29 the clothing company said it began telling affected users to change their passwords days after it first discovered the breach. Last year the credit agency Equifax, meanwhile, revealed that hackers had stolen some of its customers’ personal data, affecting nearly 140 million people in total.

Houlihan wrote that Gustavison, the information security director at Panera he corresponded with in August, was senior director of security operations at Equifax from 2009 to 2013. His departure from Equifax came before the credit agency’s breach, “but after all of the foregoing, does this seem quite so surprising?” Houlihan wrote.

Quartz has reached out to Gustavison and Panera (as well as Krebs and Houlihan) for comments and will update this piece as merited.

📬 Sign up for the Daily Brief

Our free, fast, and fun briefing on the global economy, delivered every weekday morning.