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Ransomware

Cybersecurity statistics about ransomware

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Other groups were collectively responsible for 1018 undisclosed ransomware attacks in Q3 2025, representing 67% of all undisclosed ransomware attacks.

BlackFog10/15/2025

The healthcare sector experienced 86 ransomware attacks.

BlackFog10/15/2025
RansomwareHealthcare

Ransomware groups targeted organizations in 93 countries worldwide in Q3 2025..

BlackFog10/15/2025
RansomwareGlobal

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

BlackFog10/15/2025
RansomwareQantas

The legal sector recorded 79 attacks, its highest level yet, in Q3 2025.

BlackFog10/15/2025
RansomwareLegal

The government sector reported 28 ransomware attacks in Q3 2025.

BlackFog10/15/2025
RansomwareGovernment

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

BlackFog10/15/2025
RansomwareQantas

The number of Disclosed Ransomware Attacks increased by 19% in Q3 2024 compared to Q3 2023.

BlackFog10/15/2025

There were 93 Disclosed Ransomware Attacks in Q3 2022.

BlackFog10/15/2025

Companies in 35 countries reported ransomware attacks in Q3 2025.

BlackFog10/15/2025

1131 undisclosed ransomware attacks were recorded in Q3 2023.

BlackFog10/15/2025

Only 3% of undisclosed ransomware cases included an upfront ransom demand in Q3 2025.

BlackFog10/15/2025
RansomwareRansom

Approximately 1,200 staff of the Pennsylvania Office of Attorney General had to use forced workarounds due to the cyberattack.

BlackFog10/15/2025
RansomwareCyber attack consequences

The construction sector suffered 143 ransomware attacks between July and September 2025.

BlackFog10/15/2025
RansomwareConstruction

Across 449 dark web victim listings where details were available, the average data volume exfiltrated was 527.65GB in Q3 2025.

BlackFog10/15/2025
RansomwareDark web

Q3 attacks have surged by 335% since 2020.

BlackFog10/15/2025

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

BlackFog10/15/2025
RansomwareQilin

There were 74 Disclosed Ransomware Attacks in Q3 2021.

BlackFog10/15/2025

The services sector experienced 333 ransomware incidents in Q3 2025.

BlackFog10/15/2025
RansomwareServices sector

Akira was responsible for 139 undisclosed ransomware attacks in Q3 2025, representing 9% of all undisclosed ransomware attacks.

BlackFog10/15/2025
RansomwareAkira