B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
$3,540,000
$3,540,000 -- average cost of ecommerce data breach for e-commerce sector (2025)
The average cost of an ecommerce data breach in 2025 was $3.54 million.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
$3,540,000
Unit
Currency Usd
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
seology.ai
Primary
Tier C
https://seology.ai/blog/ecommerce-security-https-ssl-shopify-2026 ↗
Source Article
Shopify HTTPS & SSL Security Guide: Trust Signals 2026
Ecommerce Security & HTTPS/SSL for Shopify: Trust Signals Guide 2026
Security isn't optional--it's survival: 85% of shoppers avoid unsecured websites, and 82% stop engaging with brands after a data breach. The average ecommerce breach costs $3.54 million, and 80% of retailers were attacked last year…
Original Research
seology.ai
· Original study ↗
Methodology
Average ecommerce breach cost; likely derived from IBM Cost of a Data Breach data
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
e-commerce sector: $3,540,000 average cost of ecommerce data breach. Source: seology.ai (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/avg-ecommerce-breach-cost-2025
HTML Embed
<blockquote cite="https://lighthousedata.io/data/avg-ecommerce-breach-cost-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>$3,540,000</strong> -- average cost of ecommerce data breach for e-commerce sector<br><small>Source: seology.ai (2025) · <a href="https://lighthousedata.io/data/avg-ecommerce-breach-cost-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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