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7 of the Largest Data Breaches of 2019

ID: a0969f3e-db0e-5f7b-81bc-87a314ace00b

STIX ID: report--a0969f3e-db0e-5f7b-81bc-87a314ace00b

Feed Name: Arctic Wolf Blog

Threat Score
78/100

Date Published: 2020-01-28

Date Updated: 2026-04-26

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This report summarizes the top data breaches of 2019 (entries #20–#14), covering coordinated ransomware campaigns (including REvil and Ryuk/TrickBot), phishing-based credential compromises, vendor/third-party breaches, and exposed databases; affected organizations span government, healthcare, legal, and municipal sectors with impacts ranging from tens of thousands to hundreds of thousands of affected records and multi-million-dollar ransom demands.

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