Back to overview
Panerabread logo
panerabread.com
Panerabread
Confidence MediumJan 27, 2026panerabread.com

Panera Bread Suffers Data Breach, 14 Million Customer Records Leaked by ShinyHunters

PatternExternal actor · Social · Confidentiality impact

Panera Bread, a major North American restaurant chain, confirmed a cyberattack by the ShinyHunters hacking group, which claimed to have stolen and leaked 14 million customer and employee records. The group reportedly bypassed security measures using a stolen Microsoft Entra single-sign-on (SSO) code, a technique consistent with their voice phishing campaigns. Exposed information includes full names, email addresses, phone numbers, home addresses, and dates of birth. Panera stated no financial information was accessed.

Signal date
Jan 27, 2026
Updated
Jun 25, 2026
Confidence
Medium
Sources
1 source
panerabread.com logo

Panerabread

Sector
Information
Signals
1 linked

Signal context

First seen: Jan 27, 2026

Last updated: Jun 25, 2026

Status: Public signal

Key points

  • 14 million customer and employee records allegedly stolen.
  • ShinyHunters hacking group claimed responsibility.
  • Attack vector: stolen Microsoft Entra SSO code via voice phishing.

Signal analysis

Beta

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Affected organization
Panerabread logo
Panerabread

Sector: Information

Likely country: 🇺🇸 United States

inferred from signal text

    Estimated
    Threat source
    Social activity

    The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.

    • Source type: outside the affected organization
    • Source type: possible insider or internal misuse
    Business impact
    Potential fraud or account takeover risk

    Impact area: Confidentiality

    Likely asset: User or customer data

    Trend context
    4 signals with similar action pattern
    • 26 signals in the same sector
    • 90 signals with the same likely impact area
    • 1 signal linked to this organization/domain
    Mentioned entities
    PanerabreadData DisclosureShinyHunters Panera BreadNorth AmericanShinyHuntersMicrosoft EntraSSOExposedPaneraAttack

    External sources

    Related signals

    Grouped by why the signal is relevant.

    dinum.fr logoDinumJun 12, 2026
    Same sectorSame action patternSame impact area

    French government messaging platform Tchap breached via compromised user account

    DINUM, the French government's digital affairs directorate, warned that hackers breached Tchap, France's encrypted messaging platform for public sector workers, using a compromised user account. The incident was detected by ANSSI, after which the affected account was blocked and an investigation launched into what conversations and data may have been accessed. DINUM has notified France's data protection authority, CNIL, due to the potential exposure of personal data. A threat actor claimed responsibility, alleging they used social engineering to access an education-related account and scrape messages, account information, and files, including 13.5GB of data from the French tax authority and other civil servants.

    microsoft.com logoMicrosoftJun 25, 2026
    Same sectorSame action pattern

    Malicious 'Edgecution' Extension Exploits Microsoft Edge Native Messaging for Ransomware Deployment

    Security researchers reported on June 25, 2026, the discovery of a new malware campaign dubbed 'Edgecution,' which utilizes a malicious Microsoft Edge extension to deploy ransomware and a Python-based backdoor. The extension abuses the Native Messaging API to escape the browser sandbox and establish a persistent system-level executor. Attackers are reportedly using Microsoft Teams for social engineering, directing victims to fake 'Outlook Updates Management Console' websites to trick them into installing the malicious extension. This campaign is believed to be operated by an Initial Access Broker (IAB) linked to the 'Payout Kings' ransomware operation.

    nifty.com logoNiftyJun 28, 2026
    Same sectorSame impact area

    NIFTY Corporation Affected by KDDI Corporation Data Breach

    NIFTY Corporation, a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. NIFTY Corporation customers' email addresses and passwords may have been compromised.

    biglobe.ne.jp logoBiglobeJun 28, 2026
    Same sectorSame impact area

    BIGLOBE Inc. Affected by KDDI Corporation Data Breach

    BIGLOBE Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. BIGLOBE Inc. customers' email addresses and passwords may have been compromised.

    stnet.co.jp logoStnetJun 28, 2026
    Same sectorSame impact area

    STNet, Inc. Affected by KDDI Corporation Data Breach

    STNet, Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. STNet customers' email addresses and passwords may have been compromised.

    kddi-web.com logoKddi WebJun 28, 2026
    Same sectorSame impact area

    KDDI Web Communications Customer Data Affected by KDDI Email System Breach

    KDDI Web Communications, a subsidiary of KDDI, was impacted by the data breach in KDDI Corporation's email system, disclosed on June 28, 2026. The incident, caused by a third-party software vulnerability, led to the potential exposure of up to 14.2 million email addresses and passwords belonging to customers across six Japanese ISPs, including KDDI Web Communications.