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Kapustkiy’s March to the Sea Takes in Russian Visa Service, Costa Rican Embassy

ID: be604608-f416-542f-a017-16325092461a

STIX ID: report--be604608-f416-542f-a017-16325092461a

Feed Name: Security Ledger

Threat Score
55/100

Date Published: 2016-12-27

Date Updated: 2026-05-08

Author: Paul Roberts

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**Executive Summary:** The report describes a series of web compromises by the hacker "Kapustkiy," who exploited SQL injection and weak credentials to breach Costa Rica’s embassy site in China and a visa-service website, leaking data on roughly 2,500 individuals and claiming responsibility for multiple diplomatic-related intrusions to pressure organizations to improve security.

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