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RevSpring and Vanguard Data Breaches Expose SSNs; Class Action Lawsuits Possible

RevSpring and Vanguard Data Breaches Expose SSNs; Class Action Lawsuits Possible

First seen 5 Nov 2026, 22:50 UTC • •
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ThreatCluster AI
ThreatCluster •November 5, 2026 at 22:51 UTC
  • •RevSpring and Vanguard reported data breaches exposing SSNs.
  • •Both breaches were disclosed on November 4, 2026, with no details on attack methods.
  • •Class action lawsuits may be pursued by affected individuals.

On November 4, 2026, both RevSpring and Vanguard Group reported data breaches that may have exposed Social Security numbers (SSNs). RevSpring, a healthcare engagement company, previously experienced a breach in December 2023 affecting personal health information. Vanguard, a major investment manager, has also confirmed a breach affecting sensitive data. Both companies have not disclosed the specific attack vectors or the timeline of these incidents. Attorneys are investigating potential class action lawsuits for affected individuals, urging those impacted to come forward. As of now, no additional details on the nature of the breaches have been provided. Individuals who believe their information was compromised are encouraged to fill out a contact form for legal assistance. The breaches were reported to the Vermont Attorney General's Office.

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Timeline

2026-11-04
RevSpring and Vanguard report data breaches
Both companies disclosed breaches that may have exposed SSNs, reported to the Vermont Attorney General's Office.
Classaction
2026-11-04
Class action lawsuit investigation begins
Attorneys are seeking individuals affected by the breaches for potential class action lawsuits.
Classaction

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Common questions

Who is affected by the data breaches?
Individuals whose Social Security numbers were exposed in the RevSpring and Vanguard breaches may be affected.
What should affected individuals do?
They should contact attorneys for potential class action lawsuits and monitor their personal information for any misuse.
Is there any information on how the breaches occurred?
No specific details regarding the attack methods or timeline have been disclosed by either company.