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Listed on a ransomware leak site

Summa4

summa4.es

Summa4 was listed on the Deadlock leak site on Jun 12, 2026. Information as of Oct 19, 2026.

Country: SpainIndustry: Consulting
Updated continuously · figures as of Oct 19, 2026
Claimed by
Deadlock
First listed
Jun 12, 2026
Claims recorded
1

Leak-Site Claim.

DeadlockConfirmed claim
Posted on the leak site
Jun 12, 2026
Collected by Brandefense
Jun 15, 2026
Data claimed
Not stated
Leak-site post text, written by the group
SUMMA 4 Asesores Legales y Tributarios is a Madrid-based firm specializing in legal and tax advisory for businesses and high-net-worth individuals. Established in 2008, the firm provides tailored strategies in tax, commercial, and labor law, with a particular focus on family businesses and family offices.

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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.