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Membersourcecu cybersecurity incidents and threat signals
membersourcecu.org
This company page brings together public reporting currently associated with Membersourcecu. It reflects signals published by Shadow Tier and should not be read as a complete incident history.
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July 15, 2026
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Based on all published signals currently linked to Membersourcecu. Affected countries come from victim data; the company country above remains a separate profile fact. Counts describe this reporting set, not overall incident prevalence.
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MemberSource Credit Union Suffers Ransomware Attack and Data Breach
MemberSource Credit Union experienced a data security incident on June 3, 2025, when a disruption was detected in its branch computer networks. An investigation confirmed that an unauthorized party exfiltrated data from the affected network. The SafePay ransomware group claimed responsibility for the attack on June 17, 2025, stating they had obtained approximately 50 GB of data. The credit union began notifying affected individuals on May 7, 2026, and reported the incident to state Attorneys General starting May 8, 2026.
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What does the Membersourcecu page include?
It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Membersourcecu.
Does every mention of Membersourcecu appear here?
No. A signal must contain a reliable company connection and meet the publication criteria; incidental or ambiguous mentions are excluded.
Why can the incident count change?
The page follows current published reporting. Counts change as new evidence is added, classifications are reviewed, or older signals leave the reporting window.