Ransomware

Q2 ‘25 Travelers Cyber Threat Report: How BEC Drives Cyber Claims

Ransomware declines in Q2 2025, but BEC and social engineering fraud remain significant challenges for businesses. Learn more in our latest report.

Ransomware

Q1 ‘25 Travelers’ Cyber Threat Report: Record Attack Activity

Ransomware surged in Q1 with 2,200+ victims—a 35% jump from last quarter. Get the full story in our latest report. Download now.

Ransomware

Q4 Travelers’ Cyber Threat Report: Ransomware Goes Full Scale

Discover the latest trends in ransomware threats, tactics, and prevention strategies from the Q4 2024 Travelers' Cyber Threat Report.

Ransomware

November 2024: A Record-Breaking Month for Ransomware Attacks

In November 2024, ransomware activity reached an all-time high, with 632 reported victims listed to leak sites. Learn more in this ransomware update.

Ransomware

Q3 Cyber Threat Report: The Ransomware Ecosystem is Increasingly Distributed

Ransomware attacks remained high in Q3 2024 thanks to the RansomHub, PLAY, and LockBit 3.0 ransomware gangs. Check out the full cyber report for more info.

Ransomware

Q2 Cyber Threat Report: Ransomware Season Arrives Early

In this report, our threat intel team highlights our critical cyber threat and ransomware findings from Q2 2024 and what it means for the threat landscape.

Ransomware

Q4 Ransomware Report: 2023 Ends as a Record-Breaking Year

In this report, we will highlight some more of our findings from Q4 2023 and also look at trends across 2023.

Ransomware

Q1 Ransomware Report: Ransomware Groups Don’t Die, They Multiply

Ransomware is already breaking all the wrong records in 2024. Learn more about our findings from the dark web in our Q1 2024 Ransomware Report.

Ransomware

Cyber and Healthcare: Treating the Rise of Ransomware

Based on external threat intelligence and our own book of business, we’re exploring the cyber risks healthcare entities face.

Ransomware

Another Record-Breaking Month for Ransomware: November Up 110% YoY

Yet another record-shattering month for the number of ransomware victims on leak sites. Here’s what you need to know.

Ransomware

Black Basta Ransomware Has Extracted Over $100 Million From Victims

Joint research by Elliptic and Corvus Insurance has identified at least $107 million in Bitcoin ransom payments to the Black Basta ransomware group.

Ransomware

Key Ransomware Indicator Up 56% Year-on-Year: October Data

In October 2023 attacks fell by 15.12% from the prior month, but remained high from a year-on-year perspective with a 54.67% increase over October 2022.

Ransomware

Q3 Ransomware Report: Global Ransomware Attacks Up Over 95% From 2022

Global ransomware frequency continues to climb. Corvus observed an 11.22% QoQ increase in Q3 and a 95.41% increase YoY on leak sites.

Ransomware

While Leaves Fall, Ransomware Rises: Attacks Are Up 5.1% in September

Threat actors are starting Fall off by increasing ransomware numbers. Here’s what you need to know.

Ransomware

August Ransomware Recap: Sixth Month in a Row with YoY Increase

It didn’t feel like it, but some ransomware groups took a summer break. Here’s what you need to know.

Ransomware

Record Ransomware Attacks: 6-Month Upward Trend Continues in July

The only thing hotter than the temperatures outside this summer? Ransomware. Here’s what you need to know.

Ransomware

Q2 Ransomware Report: Global Attacks At All-Time High

Global ransomware frequency continues an upward trend from late 2022. Corvus observed a 29% QoQ increase in Q2 and a 72% increase YoY on leak sites.

Ransomware

Record Ransomware Attacks: June 2023 Highest Month Ever

Corvus observed 456 new ransomware victims on leak sites in June 2023, 38% higher than in May 2023. Learn more about ransomware trends in this cyber blog.

Ransomware

Rising Tide of Ransomware Attacks: Current and Future Trends

Recent developments in ransomware are more than just a passing phase, but a definitive resurgence in ransomware. Why is this happening?

Ransomware

Ransomware Attacks Remain High: May 2023 Continues Increased YoY Trend

Corvus observed 329 new ransomware victims on leak sites in May 2023, 51% higher than in May 2022. Learn more about emerging ransomware trends.

Ransomware

Ransomware Update: April 2023 Takes Spot for Third Highest Month

356 new ransomware victims were posted on leak sites in April 2023. This is the third-highest month of recorded ransomware victims in the past two years.

Ransomware

Cyberwarfare in Ukraine: One Year of Observations

A year after Russia’s invasion of Ukraine, we’re looking at what surprised us, what we got right, and what we can do in the future to reduce cyber risk.

Ransomware

The Ransomware Handbook: Cybercriminals in the News

We’ll take a look at the most recognizable ransomware gangs to understand how they’ve succeeded (and what has worked to stop them).

Ransomware

Modern Warfare & Cyber Risk: Cybercrime, Sanctions Impact & More

The war in Ukraine represented a sufficient shift in the global cyber threat landscape. Join us as we analyze the fallout in this short cybersecurity blog.

Ransomware

Decrease in Ransomware at the Start of the Russian Invasion of Ukraine

Corvus observed a 30% reduction in ransomware claims frequency from Q4 2021 to Q1 2022. What does the Russian invasion of Ukraine have to do with it?