- ShinyHunters hacked Panera Bread, stealing 14 million customer data records
- Real impact closer to 5.1 million users, with unique emails, names, phone numbers and addresses exposed
- Attack linked to Microsoft Entra SSO compromise, part of a broader vishing campaign targeting Okta, Microsoft and Google SSO
The recent cyberattack on Panera Bread, which resulted in the theft of sensitive customer data, is now believed to have affected many more users than initially thought.
When ShinyHunters broke into Panera Bread, they stole 14 million customer records, not data on 14 million customers – but Have I been pwned? Researchers now estimate that the number of people actually affected is closer to 5.1 million, after analyzing the type of information leaked on the dark web.
“In January 2026, Panera Bread suffered a data breach that exposed 14 million records,” Have I Been Pwned? explain. “After a failed extortion attempt, the attackers publicly released the data, which included 5.1 million unique email addresses along with associated account information such as names, phone numbers, and physical addresses.”
Abuse of Entra SSO
The culprits of the attack are the infamous ShinyHunters ransomware group, which added Panera Bread to its data leak site, claiming to have recovered 760 MB of compressed data including people’s names, addresses, postal addresses and phone numbers.
ShinyHunters said they broke into Panera via Microsoft Entra single sign-on (SSO). If true, this incident is likely related to Okta’s recent warning, when the company said it saw cybercriminals targeting Okta, Microsoft, and Google SSO codes through a sophisticated voice phishing campaign.
Panera Bread also officially confirmed that it fell prey to the attackers.
ShinyHunters is one of the most active ransomware groups today, and one of the first to completely stop using an encryptor. Instead of encrypting victims’ systems, it simply exfiltrates the data and demands payment for it. It’s easier and cheaper to run, but just as profitable.
Via BeepComputer
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