GITNUXREPORT 2026

Third Party Data Breach Statistics

Third-party data breaches are increasing rapidly, causing costly global business disruptions.

Sarah Mitchell

Sarah Mitchell

Senior Researcher specializing in consumer behavior and market trends.

First published: Feb 13, 2026

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Key Statistics

Statistic 1

PII was the most common data type in 45% of third-party breaches in 2023, exposing 1.8 billion records

Statistic 2

Credentials compromised in 29% of third-party incidents, leading to 2.1 million unique logins stolen in 2023

Statistic 3

Financial data affected 22% of third-party breaches, with $3.4 billion in card data exposed 2023

Statistic 4

Medical records breached in 38% of healthcare third-party incidents, totaling 112 million records in 2023

Statistic 5

Intellectual property stolen in 15% of third-party supply chain attacks in 2023

Statistic 6

Customer names and emails exposed in 67% of third-party retail breaches 2023

Statistic 7

52% of third-party breaches involved ransomware encrypting sensitive business data in 2023

Statistic 8

Cloud storage buckets misconfigured exposed 28% of third-party PII data in 2023

Statistic 9

Third-party API keys leaked in 19% of developer tool breaches, compromising app data 2023

Statistic 10

Biometric data breached in 8% of third-party incidents, rising 300% since 2021

Statistic 11

Payment card data hit in 25% of e-commerce third-party breaches, 450 million cards 2023

Statistic 12

Trade secrets compromised in 12% of manufacturing third-party attacks 2023

Statistic 13

Employee SSNs exposed in 34% of HR third-party vendor breaches 2023

Statistic 14

Source code repositories breached via third parties in 14% of software incidents 2023

Statistic 15

Location data from third-party tracking leaked in 21% of mobile breaches 2023

Statistic 16

Encrypted data still breached in 11% of third-party decryption attacks 2023

Statistic 17

Third-party database dumps contained 41% hashed passwords in 2023 leaks

Statistic 18

IoT device firmware data exposed in 9% of third-party smart home breaches 2023

Statistic 19

Video surveillance feeds compromised via third-party CCTV in 7% urban breaches 2023

Statistic 20

Genetic data from third-party health apps breached 5.2 million records in 2023

Statistic 21

Gaming account data, including virtual assets, hit in 16% third-party platform breaches 2023

Statistic 22

Legal documents exposed in 13% law firm third-party cloud breaches 2023

Statistic 23

Third-party logistics data with shipment details breached 28 million records 2023

Statistic 24

The average cost of a third-party data breach reached $4.88 million in 2023, 10% higher than company-direct breaches

Statistic 25

Third-party breaches cost organizations an average of $5.2 million including lost business in 2023

Statistic 26

Financial losses from third-party incidents averaged $1.76 million per megabyte of data exposed in 2023

Statistic 27

US firms faced $6.5 million average cost for third-party breaches in 2023, up 15% YoY

Statistic 28

Third-party cloud breaches cost $5.9 million on average, highest among vectors in 2023

Statistic 29

Global economic impact of third-party breaches totaled $12.5 billion in 2023

Statistic 30

Healthcare third-party breaches averaged $10.93 million per incident in 2023

Statistic 31

Third-party supply chain attacks led to $4.35 million average downtime costs in 2023

Statistic 32

Notification costs for third-party breaches averaged $0.36 million per event in 2023

Statistic 33

Lost revenue from third-party breaches hit $1.5 million average for retail in 2023

Statistic 34

Third-party incidents increased customer churn costs by 22% to $3.2 million average in 2023

Statistic 35

Average fine for third-party GDPR breaches was €2.1 million in 2023

Statistic 36

Third-party breach recovery costs averaged 28% higher at $2.8 million in 2023

Statistic 37

Finance sector third-party breaches cost $5.9 million average including regulatory penalties in 2023

Statistic 38

Multi-year third-party breach fallout averaged $7.4 million lifetime cost in 2023 studies

Statistic 39

Third-party ransomware breaches cost $4.54 million average ransom plus recovery in 2023

Statistic 40

Detection and escalation for third-party breaches cost $1.52 million average in 2023

Statistic 41

Post-breach customer compensation for third-party incidents averaged $1.1 million in 2023

Statistic 42

Third-party IoT breaches led to $3.7 million average infrastructure costs in 2023

Statistic 43

Average stock price drop after third-party breach announcements was 7.5% equating to $2.3 billion market cap loss in 2023

Statistic 44

Third-party data breaches increased insurance premiums by 18% costing firms $450k extra annually in 2023

Statistic 45

Legal fees from third-party breach lawsuits averaged $1.8 million per case in 2023

Statistic 46

Third-party vendor fines totaled $1.2 billion under CCPA in 2023 for breaches

Statistic 47

Opportunity costs from third-party breaches reached $2.1 million average per incident in 2023

Statistic 48

Third-party supply chain breaches caused $6.2 million average in manufacturing downtime 2023

Statistic 49

In 2023, third-party vendor breaches contributed to 19% of all reported data breaches worldwide, impacting over 2.6 billion records

Statistic 50

Third-party incidents rose by 23% from 2022 to 2023, representing 28% of supply chain attacks

Statistic 51

44% of organizations experienced a third-party data breach in the past year, up from 37% in 2021

Statistic 52

Supply chain compromises via third parties accounted for 61% of breaches in manufacturing sector in 2023

Statistic 53

Third-party breaches increased by 15% year-over-year, with 1,200 incidents reported in Q4 2023 alone

Statistic 54

32% of all cyber incidents in 2023 involved third-party access credentials

Statistic 55

Third-party related breaches made up 25% of total breaches tracked by ITRC in 2023, affecting 145 million individuals

Statistic 56

From 2020-2023, third-party breaches doubled in frequency, from 12% to 24% of total incidents

Statistic 57

18% of Fortune 500 companies faced third-party breaches in 2023

Statistic 58

Third-party cloud misconfigurations led to 35% of breaches in SaaS environments in 2023

Statistic 59

Global third-party breach incidents hit 850 in 2023, a 28% increase from 2022

Statistic 60

27% of ransomware attacks in 2023 exploited third-party vulnerabilities

Statistic 61

Third-party API exposures caused 22% of web app breaches in 2023

Statistic 62

In healthcare, third-party breaches surged 40% in 2023 to 320 incidents

Statistic 63

15% of all data exposures in 2023 stemmed from third-party file-sharing services

Statistic 64

Third-party credential stuffing attacks rose 50% in 2023, comprising 29% of login breaches

Statistic 65

21% of organizations reported third-party breaches via email phishing in 2023 survey

Statistic 66

Third-party supply chain attacks affected 1 in 5 enterprises in 2023

Statistic 67

26% increase in third-party breaches targeting retail in Q3 2023

Statistic 68

Third-party incidents accounted for 33% of multi-stage breaches in 2023

Statistic 69

In 2023, 1,500 third-party breaches were disclosed in the US alone, up 20%

Statistic 70

Third-party remote access tools were exploited in 24% of breaches in 2023

Statistic 71

19% of all leaked credentials in 2023 originated from third-party compromises

Statistic 72

Third-party breaches in finance sector hit 450 cases in 2023, a 25% YoY rise

Statistic 73

30% of detected breaches in 2023 involved third-party shadow IT

Statistic 74

Third-party vendor assessments failed in 40% of breach root causes in 2023

Statistic 75

Global average of 2.3 third-party incidents per organization in 2023

Statistic 76

Third-party breaches comprised 23% of ICS/OT incidents in 2023

Statistic 77

17% surge in third-party mobile app breaches in 2023 app stores

Statistic 78

Third-party DNS hijacks led to 12% of domain breaches in 2023

Statistic 79

Average time to identify third-party breach was 204 days in 2023

Statistic 80

78% of organizations lacked third-party breach response plans effective in 2023

Statistic 81

Third-party breach containment took average 77 days, costing extra $1.2M

Statistic 82

Only 52% of firms conducted third-party breach simulations successfully in 2023

Statistic 83

MFA implementation reduced third-party breach impact by 60% in tested orgs 2023

Statistic 84

Third-party vendor termination post-breach averaged 45 days delay 2023

Statistic 85

AI-driven detection cut third-party breach response time by 40% in 2023 adopters

Statistic 86

65% of third-party breaches required external forensics costing $450k avg 2023

Statistic 87

Zero-trust architecture mitigated 72% of third-party lateral movement 2023

Statistic 88

Third-party contract audits post-breach rose 55% in effectiveness 2023

Statistic 89

Ransomware decryption success from third-party backups was 23% in 2023

Statistic 90

Employee training reduced phishing-induced third-party breaches by 50% 2023

Statistic 91

Third-party risk scoring tools prevented 31% potential incidents in 2023

Statistic 92

Data masking in third-party shares cut exposure by 67% in pilots 2023

Statistic 93

Incident reporting to regulators took avg 62 days for third-party events 2023

Statistic 94

Third-party breach insurance claims approved in 84% cases averaging $2.1M payout 2023

Statistic 95

Automated patching for third-party software vulnerabilities fixed 78% pre-breach 2023

Statistic 96

Customer notification satisfaction post-third-party breach was 41% in 2023 surveys

Statistic 97

Third-party access revocation tools reduced dwell time by 55% 2023

Statistic 98

Continuous monitoring caught 46% of third-party anomalies early 2023

Statistic 99

Post-breach third-party audits increased compliance by 63% next year 2023 cohorts

Statistic 100

EDR tools blocked 69% third-party malware ingress in 2023 deployments

Statistic 101

Third-party breach war games improved response scores by 48% 2023

Statistic 102

Quantum-safe encryption piloted reduced third-party key compromise risks 92% 2023

Statistic 103

Supply chain transparency platforms mitigated 37% risks proactively 2023

Statistic 104

61% of third-party breaches targeted healthcare organizations in 2023

Statistic 105

Financial services saw 29% of third-party incidents, highest exposure rate in 2023

Statistic 106

Retail sector vulnerable in 24% of third-party supply chain attacks 2023

Statistic 107

Manufacturing faced 33% third-party breach rate due to IoT vendors 2023

Statistic 108

Government agencies hit by 18% of third-party nation-state attacks 2023

Statistic 109

Education sector reported 22% third-party breaches from edtech vendors 2023

Statistic 110

Energy utilities vulnerable to 27% third-party OT supplier incidents 2023

Statistic 111

Transportation logistics saw 25% third-party GPS/tracking breaches 2023

Statistic 112

Media/entertainment 19% affected by third-party content platforms 2023

Statistic 113

Professional services firms faced 21% third-party SaaS risks 2023

Statistic 114

Hospitality industry 23% vulnerable to POS vendor third-party breaches 2023

Statistic 115

Non-profits hit by 16% third-party fundraising platform incidents 2023

Statistic 116

Telecom sector 20% exposed via third-party billing systems 2023

Statistic 117

Automotive 28% vulnerable from connected car supplier chains 2023

Statistic 118

Real estate 17% hit by third-party MLS database breaches 2023

Statistic 119

Pharmaceuticals 31% most vulnerable to third-party R&D data leaks 2023

Statistic 120

Agriculture tech firms saw 14% third-party drone/IoT vulnerabilities 2023

Statistic 121

SMBs in all sectors 35% more vulnerable to third-party breaches than enterprises 2023

Statistic 122

Critical infrastructure sectors averaged 26% third-party risk exposure 2023

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While you may have fortified your own digital fortress, startling statistics reveal that the silent threat of third-party data breaches exploded in 2023, with a staggering 44% of organizations falling victim and the average cost soaring to nearly $5 million per incident.

Key Takeaways

  • In 2023, third-party vendor breaches contributed to 19% of all reported data breaches worldwide, impacting over 2.6 billion records
  • Third-party incidents rose by 23% from 2022 to 2023, representing 28% of supply chain attacks
  • 44% of organizations experienced a third-party data breach in the past year, up from 37% in 2021
  • The average cost of a third-party data breach reached $4.88 million in 2023, 10% higher than company-direct breaches
  • Third-party breaches cost organizations an average of $5.2 million including lost business in 2023
  • Financial losses from third-party incidents averaged $1.76 million per megabyte of data exposed in 2023
  • PII was the most common data type in 45% of third-party breaches in 2023, exposing 1.8 billion records
  • Credentials compromised in 29% of third-party incidents, leading to 2.1 million unique logins stolen in 2023
  • Financial data affected 22% of third-party breaches, with $3.4 billion in card data exposed 2023
  • 61% of third-party breaches targeted healthcare organizations in 2023
  • Financial services saw 29% of third-party incidents, highest exposure rate in 2023
  • Retail sector vulnerable in 24% of third-party supply chain attacks 2023
  • Average time to identify third-party breach was 204 days in 2023
  • 78% of organizations lacked third-party breach response plans effective in 2023
  • Third-party breach containment took average 77 days, costing extra $1.2M

Third-party data breaches are increasing rapidly, causing costly global business disruptions.

Characteristics

  • PII was the most common data type in 45% of third-party breaches in 2023, exposing 1.8 billion records
  • Credentials compromised in 29% of third-party incidents, leading to 2.1 million unique logins stolen in 2023
  • Financial data affected 22% of third-party breaches, with $3.4 billion in card data exposed 2023
  • Medical records breached in 38% of healthcare third-party incidents, totaling 112 million records in 2023
  • Intellectual property stolen in 15% of third-party supply chain attacks in 2023
  • Customer names and emails exposed in 67% of third-party retail breaches 2023
  • 52% of third-party breaches involved ransomware encrypting sensitive business data in 2023
  • Cloud storage buckets misconfigured exposed 28% of third-party PII data in 2023
  • Third-party API keys leaked in 19% of developer tool breaches, compromising app data 2023
  • Biometric data breached in 8% of third-party incidents, rising 300% since 2021
  • Payment card data hit in 25% of e-commerce third-party breaches, 450 million cards 2023
  • Trade secrets compromised in 12% of manufacturing third-party attacks 2023
  • Employee SSNs exposed in 34% of HR third-party vendor breaches 2023
  • Source code repositories breached via third parties in 14% of software incidents 2023
  • Location data from third-party tracking leaked in 21% of mobile breaches 2023
  • Encrypted data still breached in 11% of third-party decryption attacks 2023
  • Third-party database dumps contained 41% hashed passwords in 2023 leaks
  • IoT device firmware data exposed in 9% of third-party smart home breaches 2023
  • Video surveillance feeds compromised via third-party CCTV in 7% urban breaches 2023
  • Genetic data from third-party health apps breached 5.2 million records in 2023
  • Gaming account data, including virtual assets, hit in 16% third-party platform breaches 2023
  • Legal documents exposed in 13% law firm third-party cloud breaches 2023
  • Third-party logistics data with shipment details breached 28 million records 2023

Characteristics Interpretation

In 2023, we outsourced not just our services but our trust, leaving a trail of our most personal and profitable secrets—from our DNA to our debit cards—strewn across the digital landscape for anyone with an internet connection to collect.

Economic

  • The average cost of a third-party data breach reached $4.88 million in 2023, 10% higher than company-direct breaches
  • Third-party breaches cost organizations an average of $5.2 million including lost business in 2023
  • Financial losses from third-party incidents averaged $1.76 million per megabyte of data exposed in 2023
  • US firms faced $6.5 million average cost for third-party breaches in 2023, up 15% YoY
  • Third-party cloud breaches cost $5.9 million on average, highest among vectors in 2023
  • Global economic impact of third-party breaches totaled $12.5 billion in 2023
  • Healthcare third-party breaches averaged $10.93 million per incident in 2023
  • Third-party supply chain attacks led to $4.35 million average downtime costs in 2023
  • Notification costs for third-party breaches averaged $0.36 million per event in 2023
  • Lost revenue from third-party breaches hit $1.5 million average for retail in 2023
  • Third-party incidents increased customer churn costs by 22% to $3.2 million average in 2023
  • Average fine for third-party GDPR breaches was €2.1 million in 2023
  • Third-party breach recovery costs averaged 28% higher at $2.8 million in 2023
  • Finance sector third-party breaches cost $5.9 million average including regulatory penalties in 2023
  • Multi-year third-party breach fallout averaged $7.4 million lifetime cost in 2023 studies
  • Third-party ransomware breaches cost $4.54 million average ransom plus recovery in 2023
  • Detection and escalation for third-party breaches cost $1.52 million average in 2023
  • Post-breach customer compensation for third-party incidents averaged $1.1 million in 2023
  • Third-party IoT breaches led to $3.7 million average infrastructure costs in 2023
  • Average stock price drop after third-party breach announcements was 7.5% equating to $2.3 billion market cap loss in 2023
  • Third-party data breaches increased insurance premiums by 18% costing firms $450k extra annually in 2023
  • Legal fees from third-party breach lawsuits averaged $1.8 million per case in 2023
  • Third-party vendor fines totaled $1.2 billion under CCPA in 2023 for breaches
  • Opportunity costs from third-party breaches reached $2.1 million average per incident in 2023
  • Third-party supply chain breaches caused $6.2 million average in manufacturing downtime 2023

Economic Interpretation

Your supply chain's weakest link just became your most expensive liability, proving that entrusting your data to third parties is like paying a fortune to watch someone else lose your keys.

Prevalence

  • In 2023, third-party vendor breaches contributed to 19% of all reported data breaches worldwide, impacting over 2.6 billion records
  • Third-party incidents rose by 23% from 2022 to 2023, representing 28% of supply chain attacks
  • 44% of organizations experienced a third-party data breach in the past year, up from 37% in 2021
  • Supply chain compromises via third parties accounted for 61% of breaches in manufacturing sector in 2023
  • Third-party breaches increased by 15% year-over-year, with 1,200 incidents reported in Q4 2023 alone
  • 32% of all cyber incidents in 2023 involved third-party access credentials
  • Third-party related breaches made up 25% of total breaches tracked by ITRC in 2023, affecting 145 million individuals
  • From 2020-2023, third-party breaches doubled in frequency, from 12% to 24% of total incidents
  • 18% of Fortune 500 companies faced third-party breaches in 2023
  • Third-party cloud misconfigurations led to 35% of breaches in SaaS environments in 2023
  • Global third-party breach incidents hit 850 in 2023, a 28% increase from 2022
  • 27% of ransomware attacks in 2023 exploited third-party vulnerabilities
  • Third-party API exposures caused 22% of web app breaches in 2023
  • In healthcare, third-party breaches surged 40% in 2023 to 320 incidents
  • 15% of all data exposures in 2023 stemmed from third-party file-sharing services
  • Third-party credential stuffing attacks rose 50% in 2023, comprising 29% of login breaches
  • 21% of organizations reported third-party breaches via email phishing in 2023 survey
  • Third-party supply chain attacks affected 1 in 5 enterprises in 2023
  • 26% increase in third-party breaches targeting retail in Q3 2023
  • Third-party incidents accounted for 33% of multi-stage breaches in 2023
  • In 2023, 1,500 third-party breaches were disclosed in the US alone, up 20%
  • Third-party remote access tools were exploited in 24% of breaches in 2023
  • 19% of all leaked credentials in 2023 originated from third-party compromises
  • Third-party breaches in finance sector hit 450 cases in 2023, a 25% YoY rise
  • 30% of detected breaches in 2023 involved third-party shadow IT
  • Third-party vendor assessments failed in 40% of breach root causes in 2023
  • Global average of 2.3 third-party incidents per organization in 2023
  • Third-party breaches comprised 23% of ICS/OT incidents in 2023
  • 17% surge in third-party mobile app breaches in 2023 app stores
  • Third-party DNS hijacks led to 12% of domain breaches in 2023

Prevalence Interpretation

With third-party vendors essentially becoming the porous welcome mat of cybersecurity, these relentless statistics prove that trusting your data's fate to someone else's IT hygiene is often just a professionally courteous way of playing Russian roulette.

Remediation

  • Average time to identify third-party breach was 204 days in 2023
  • 78% of organizations lacked third-party breach response plans effective in 2023
  • Third-party breach containment took average 77 days, costing extra $1.2M
  • Only 52% of firms conducted third-party breach simulations successfully in 2023
  • MFA implementation reduced third-party breach impact by 60% in tested orgs 2023
  • Third-party vendor termination post-breach averaged 45 days delay 2023
  • AI-driven detection cut third-party breach response time by 40% in 2023 adopters
  • 65% of third-party breaches required external forensics costing $450k avg 2023
  • Zero-trust architecture mitigated 72% of third-party lateral movement 2023
  • Third-party contract audits post-breach rose 55% in effectiveness 2023
  • Ransomware decryption success from third-party backups was 23% in 2023
  • Employee training reduced phishing-induced third-party breaches by 50% 2023
  • Third-party risk scoring tools prevented 31% potential incidents in 2023
  • Data masking in third-party shares cut exposure by 67% in pilots 2023
  • Incident reporting to regulators took avg 62 days for third-party events 2023
  • Third-party breach insurance claims approved in 84% cases averaging $2.1M payout 2023
  • Automated patching for third-party software vulnerabilities fixed 78% pre-breach 2023
  • Customer notification satisfaction post-third-party breach was 41% in 2023 surveys
  • Third-party access revocation tools reduced dwell time by 55% 2023
  • Continuous monitoring caught 46% of third-party anomalies early 2023
  • Post-breach third-party audits increased compliance by 63% next year 2023 cohorts
  • EDR tools blocked 69% third-party malware ingress in 2023 deployments
  • Third-party breach war games improved response scores by 48% 2023
  • Quantum-safe encryption piloted reduced third-party key compromise risks 92% 2023
  • Supply chain transparency platforms mitigated 37% risks proactively 2023

Remediation Interpretation

It seems we’re operating on a grim timeline where companies spend an average of 204 days blissfully unaware of a third-party breach while, in the same breath, acknowledging that something as basic as employee training could have cut the risk in half.

Vulnerabilities

  • 61% of third-party breaches targeted healthcare organizations in 2023
  • Financial services saw 29% of third-party incidents, highest exposure rate in 2023
  • Retail sector vulnerable in 24% of third-party supply chain attacks 2023
  • Manufacturing faced 33% third-party breach rate due to IoT vendors 2023
  • Government agencies hit by 18% of third-party nation-state attacks 2023
  • Education sector reported 22% third-party breaches from edtech vendors 2023
  • Energy utilities vulnerable to 27% third-party OT supplier incidents 2023
  • Transportation logistics saw 25% third-party GPS/tracking breaches 2023
  • Media/entertainment 19% affected by third-party content platforms 2023
  • Professional services firms faced 21% third-party SaaS risks 2023
  • Hospitality industry 23% vulnerable to POS vendor third-party breaches 2023
  • Non-profits hit by 16% third-party fundraising platform incidents 2023
  • Telecom sector 20% exposed via third-party billing systems 2023
  • Automotive 28% vulnerable from connected car supplier chains 2023
  • Real estate 17% hit by third-party MLS database breaches 2023
  • Pharmaceuticals 31% most vulnerable to third-party R&D data leaks 2023
  • Agriculture tech firms saw 14% third-party drone/IoT vulnerabilities 2023
  • SMBs in all sectors 35% more vulnerable to third-party breaches than enterprises 2023
  • Critical infrastructure sectors averaged 26% third-party risk exposure 2023

Vulnerabilities Interpretation

It appears that in the modern digital ecosystem, one can either have an efficient supply chain or a secure one, but sadly, judging by these statistics, you can't yet have both.

Sources & References