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Listed on a ransomware leak site

CM Buck & Associates

cmbuck.com

CM Buck & Associates was listed on the Lynx leak site on Dec 11, 2024. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
Lynx
First listed
Dec 11, 2024
Claims recorded
1

Leak-Site Claim.

LynxConfirmed claim
Posted on the leak site
Dec 11, 2024
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Founded in 1941 by mechanical engineer Chauncey M. Buck, CM Buck & Associates, Inc. has expanded from Indianapolis roots to serve the Midwest market at large. Nearly eight decades after the company’s inception, we’re proud to carry on Chauncey’s legacy of superior technical and engineering support for our project partners.

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.