Elasticsearch Sales Leads (AWS) 2018.0 Data Breach
ObscureIQ Breach Intelligence
Low SeverityWebsite / service breach
Elasticsearch Sales Leads Exposure (2018): 5.8 Million B2B Contact Records Left Open on AWS
Sales leads and B2B contact intelligence.
Verified by ObscureIQ Intelligence
24/100Breach Risk Index
14Data Value
10Market Recency
2790dSince Breach
Breach Intelligence Summary
Entity: Elasticsearch Sales Leads (AWS) · Actor: Unknown · Sources: 2 references
Attack: Database Exposure
Profile: Data Broker / Marketing Exposure · Sales leads and B2B contact intelligence · Exposed sales lead database · Global
Timeline: Breach (2018-10-01) · Indexed (Nov 17, 2018) · Year (2018.0)
Exposure: Undisclosed records · 4 fields: Email Address, Employer, Full Name, Physical Address
Status: Compilation
Executive Summary
In October 2018, security researcher Bob Diachenko found an exposed Elasticsearch instance on AWS containing sales-lead data with 5.8 million unique email addresses, along with names and the companies/contact information they were associated with. The owner of the data was never identified. Systems were not hacked; the aggregated B2B lead data was left publicly accessible.
ObscureIQ assessment: This kind of dataset enables spearphishing, executive impersonation, invoice fraud, and account-targeting against business users because it maps who works where and how to reach them. It is especially valuable for B2B fraud because it provides ready-made contact intelligence for high-volume outreach.
Breach Impact
In October 2018, security researcher Bob Diachenko found an exposed Elasticsearch instance on AWS containing sales-lead data with 5.8 million unique email addresses, along with names and the companies/contact information they were associated with. The owner of the data was never identified. Systems were not hacked; the aggregated B2B lead data was left publicly accessible.
About Elasticsearch Sales Leads (AWS)
In October 2018, security researcher Bob Diachenko found an exposed Elasticsearch instance on AWS containing sales-lead data with 5.8 million unique email addresses, along with names and the companies/contact information they were associated with. The owner of the data was never identified. Systems…
Why They Hold Your Data
Sales lead databases usually contain names, job titles, company names, work emails, phone numbers, business addresses, firmographic data, and engagement notes used for prospecting and outreach. Their workflows are driven by lead capture, enrichment, segmentation, scoring, and distribution to sales or marketing teams.
Data Points Exposed
4 verified field types
Email Address
Employer
Full Name High
Physical Address High
Field names are shown in full for clarity and search visibility. Canonical machine keys are emitted only in this page’s structured data.
Exploitation & Downstream Threats
Threat Activity:High
Primary downstream threats:
Threat vectors:
- Phishing, credential stuffing & account takeover
- Business Email Compromise seeding
- Name-based social engineering
- Physical stalking, mail fraud & identity verification
Recommended Actions
If you believe your information may be included:
Enable MFA Everywhere
Turn on multi-factor authentication on email first, then financial accounts.
Report & Recover
If you spot misuse, start an official recovery plan and report fraud.
Frequently Asked Questions
What happened in the Elasticsearch Sales Leads (AWS) breach?▾
In October 2018, security researcher Bob Diachenko found an exposed Elasticsearch instance on AWS containing sales-lead data with 5.8 million unique email addresses, along with names and the companies/contact information they were associated with. The owner of the data was never identified. Systems…
What data was exposed?▾
Verified fields include Email Address, Employer, Full Name, Physical Address.
What should I do if I was affected?▾
Change reused passwords, enable MFA, and (if identity or financial data is involved) freeze your credit and monitor your accounts.
Sources & References
Every claim on this page is traceable. This breach draws on:
Breach Index
ObscureIQ Intelligence
ObscureIQ proprietary analysis
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