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BlackFog’s 2025 Q3 Ransomware Report

The State of Ransomware 2025

Recent Statistics & Reports

The healthcare sector experienced 86 ransomware attacks.

Ransomware Healthcare

DEVMAN demanded $91 million from Shimao Group, the largest ransom in Q3 2025.

Ransomware Ransom DEVMAN

1510 undisclosed ransomware attacks occurred in Q3 2025.

DEVMAN has claimed 19 ransomware attacks across Asia, Africa, Europe, and Latin America.

Ransomware DEVMAN Asia

A $4 million ransom was demanded in a July 2025 DEVMAN attack on PT.EI. COM.

Ransomware DEVMAN

Qilin was responsible for 242 undisclosed ransomware attacks in Q3 2025, representing 16% of all undisclosed ransomware attacks.

Ransomware Qilin

The Qantas board imposed a 15% reduction in short-term bonuses for the CEO and senior executives due to the July 2025 breach.

Ransomware Qantas Cyber attack consequences

The penalty for Qantas CEO Vanessa Hudson due to the bonus reduction following the July 2025 breach amounted to about A$250,000.

Ransomware Qantas Cyber attack consequences

Qilin was responsible for 16% of ransomware cases in Q3 2025..

Ransomware Qilin

Manufacturing accounted for 22% of all undisclosed ransomware attacks in Q3 2025.

Ransomware Manufacturing

1252 undisclosed ransomware attacks were recorded in Q3 2024.

Undisclosed ransomware attacks in Q3 2024 increased by 11% year-over-year compared to Q3 2023.

The Qilin group was responsible for 20 ransomware incidents in Q3 2025.

Ransomware Qilin

The government sector reported 28 ransomware attacks in Q3 2025.

Ransomware Government

Nearly 85% of all ransomware incidents were not disclosed publicly.

The technology sector reported 28 ransomware attacks in Q3 2025.

Ransomware Technology

Q3 2025 saw the emergence of 18 new ransomware groups.

For every 100 ransomware attacks, only 15 were publicly reported.

270 publicly disclosed ransomware attacks were reported in Q3 2025 - 36% increase compared to the same quarter in 2024.

Reported ransomware attacks in July 2025 led with a sharp 50% year-on-year surge.

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