record spikes in ransomware insurance premiums. Fetches articles on rising cyber insurance costs in response to ransomware epidemics. Links business risk and security trends.

Cyber insurance premiums, underwriting, and rate pressure

A focused reading list on cyber insurance pricing pressure tied to ransomware and related claim severity. I prioritized industry and trade coverage that is closest to premium spikes, underwriting tightening, and renewal pressure, and I kept the list to the most relevant open-web sources.

Best matches for premium and underwriting pressure

These sources are the strongest fits for your objective because they directly discuss cyber insurance rate pressure, tighter underwriting, or market changes linked to ransomware losses and cyber claims.

programbusiness.com
The financial stakes are rising on both sides of the coverage relationship. A 2025 report co-authored by Marsh...
cybersecuritydive.com
War exclusion language traditionally has placed major limits on cyberattack insurance coverage, particularly w...
insurancejournal.com
According to AM Best, the market’s loss ratio in 2025 increased for the second straight year to 53—the first t...
insurancejournal.com
The insurer’s 2026 Cyber Claims Report found that average severity for businesses with $1 billion or more in r...
insurancejournal.com
For ransomware attacks that lead to incurred claims, the average claim thus far in 2025 is more than $1.2 mill...
allencio.com
Ransomware payments jumped $1.1 billion, forcing insurers to implement stricter underwriting requireme...
insurancebusinessmag.com
BEC frequency increased 15%, while average loss fell 28% to $27,000. FTF frequency decreased 18%, and severity...

Ransomware claims and broader market context

Claims and trend coverage

These pieces are broader than pure premium reporting, but they help connect ransomware activity, rising claims severity, and the insurance market response. Some are newer 2025 to 2026 updates rather than core 2020 to 2023 historical journalism.

helpnetsecurity.com
The 2026 InsurSec Report from At-Bay, covering more than 100,000 policy years of claims data,...
techtarget.com
Read about John Kindervag's session at RSAC 2026, where he proposes that cyber insurance...
knowbe4.com
A new Cowbell Cyber report reveals cyber insurance claims surged 40% over 18 months, driven b...
insurancejournal.com
While ransomware continues to be a significant concern, its dynamics are shifting. Cowbell’s data indicates th...
insurancejournal.com
A large cyber insurance provider says it saw the number of ransomware attacks rise 45% last year
naic.org
naic.org
The data illustrates a dramatic ... reaction to a · more complex and volatile cyberthreat landscape. Following...

I did not reliably surface strong historical journalism that cleanly documents a specific percentage increase in ransomware-driven cyber insurance premiums from 2020 to 2023, so this list leans on market and claims reporting that is closer to the pricing story.