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    Updated about 1 month ago

    Staples Data Breach

    Key takeaways

    • Reports suggest a potential breach involving Staples.
    • Discovered on March 11, 2026.
    • Possible data exposed: employee credentials, user credentials, third-party employee credentials.
    • Affects individuals in: US-Northeast, US.
    • Confirmation level: Based on reports.

    Detailed summary

    In March 2026, a ransomware claim by Coinbasecartel against Staples was discovered, with an estimated attack date of December 9, 2023. This claim mentioned infostealer activity compromising 61 employees, 11,853 users, and 47 third-party employee credentials. It is important to note this is distinct from a 2014 payment card breach and a 2023 cyberattack that affected online ordering.

    Specifics regarding affected individuals, data types beyond credentials, and any consumer notifications resulting from the 2026 ransomware claim have not been publicly confirmed. For the 2014 breach, approximately 1.16 million payment cards were affected, but no SSN or medical data was involved. The 2023 cyberattack disrupted online ordering, and Staples stated it would notify customers if legally required, though data theft was not confirmed.

    Details surrounding the March 2026 ransomware claim are still emerging, and more information may become available. Notifications to affected individuals, if any, may also be delayed.

    Data possibly involved

    • employee credentials
    • user credentials
    • third-party employee credentials

    Company Response Timeline

    Breach Occurred

    Dec 9, 2023

    Company Discovered

    Mar 11, 2026

    Regulator Notified

    Unknown

    Consumers Notified

    Unknown

    823 days to discover

    Breach Verification Status

    Reports Only

    Current

    Initial dark web reports of potential breach

    Company Confirmed

    Company has acknowledged the breach

    Regulator Confirmed

    Confirmed by regulatory authorities

    Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

    Case Status:
    Monitoring

    We're monitoring this situation for developments.

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    What should I do?

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