Facebook 2019 Data Breach
Company · Social media and digital advertising · Multi-platform social ecosystem · Global
Facebook Contact Importer API Scrape (2019): 481 Million User Profiles Including Phone & DOB Exposed
Social networking platform owned by Meta.
Scrape · ObscureIQ Intelligence
Breach Risk Index i
25/100
Lower riskHigher risk
Lower: limited current risk based on data value and recency.
Data Sensitivity i
StandardExposed data is largely lower-sensitivity. Standard identity-protection precautions are advised.
481.7MRecords
2019Year
The Breach Risk Index (BRI) is a proprietary 0–100 score rating how dangerous a breach is right now, based on how recently the data has been circulating on the dark web and how valuable it is to attackers.
Breach Summary
Facebook's contact importer feature was exploited by attackers who abused the tool to enumerate and scrape profile data at scale. The technique allowed them to link phone numbers to individual Facebook accounts, building a detailed dataset covering 481.7 million users across multiple countries. The scraped data was collected before September 2019, when Facebook altered the feature. The dataset later surfaced publicly on a cybercrime forum in 2021, substantially widening its exposure. The exposed records included names, phone numbers, dates of birth, email addresses, employers, genders, geographic locations, and relationship statuses. The combination of phone numbers with identity details is particularly harmful. It enables phishing, impersonation, SIM-swap-adjacent attacks, and highly targeted social engineering. Even without passwords or financial data, this field set is enough to build convincing fraudulent profiles of real people and to correlate their identities across other platforms and data sources. Facebook chose not to notify affected users individually, citing the age of the data and difficulty in identifying specific accounts. In November 2024, a German court ruled that users affected by the breach were entitled to compensation, marking a concrete legal consequence years after the exposure. People whose data was included remain at ongoing risk, as scraped datasets of this kind circulate indefinitely. Anyone who had a Facebook account active before 2019 should treat their phone number and associated profile details as potentially compromised and be alert to unsolicited calls, messages, or account recovery attempts using that information.
Full threat analysis, exploitation vectors, and principal guidance below.
10 additional sections · verified field analysis · defensive doctrine
Querying breach corpus…
Cross-referencing exposed field types…
Resolving threat-actor attribution…
Compiling principal risk advisory…
481.7M records analyzed
About Facebook
Facebook is the flagship social platform within Meta’s broader consumer ecosystem. It combines social networking, groups, messaging-adjacent interaction, marketplace activity, creator distribution, and advertising into a global platform built around identity, engagement, and large-scale behavioral targeting. �
Why They Hold Your Data
Large social-media ecosystems collect user identity, contact details, social graphs, messages, posts, location-linked activity, ad-targeting signals, and business or creator records across multiple services.
Recent Developments
More recently, Facebook has continued to evolve inside Meta’s AI-heavy product strategy. Recent official announcements show Meta adding AI features to Facebook products, including creator-growth tools, Marketplace assistance, and profile-related generative features, while Meta more broadly frames 2025 to 2026 as a period of AI-driven product and infrastructure expansion. �
Data Points Exposed
8 verified field types
Date of Birth High
Email Address
Employer
Full Name
Gender
Geographic location
Phone Number
Relationship Status
Breach Impact
The 2019 Facebook incident is widely described as a mass scraping exposure rather than a classic internal database intrusion. Meta said the data was scraped from profile information through abuse of the contact importer before September 2019 and that it changed the feature in 2019; HIBP says the dataset later circulated publicly in 2021 and included over 500 million users, with phone-number-to-identity linkage as the most valuable element. That made the breach especially useful for phishing, impersonation, account targeting, SIM-swap-adjacent abuse, and broader identity correlation at enormous scale. �
Exploitation & Downstream Threats
• Identity verification bypass using name + date of birth combination | • SIM swap attacks where phone numbers are present | • Targeted phishing campaigns using exposed email addresses | • Doxxing risk from physical address exposure | • Employment-based social engineering using job and employer data
Principal Risk Advisory
What this means for a principal
A social-platform breach: profile and contact-graph data supports impersonation, enrichment and social engineering. For a high-profile principal the main risk is credible impersonation and enrichment of existing exposure.
What You Should Do
- Guard against SIM-swap and vishing: add a carrier port-out PIN and verify any 'support' calls independently.
- Do not use unofficial 'am I affected' lookups; several are themselves harvesting operations.
How ObscureIQ Can Help
- Corpus confirmation: determine whether and where the principal (plus household and staff) appear in this dataset and which specific fields are exposed for them.
- Exposure mapping and footprint neutralization: cross-reference against broker-available data and suppress still-removable elements, prioritizing address and phone, since this record re-seeds broker networks.
- ThreatWatch tuned to this incident's identifiers and misuse pattern (impersonation and targeting patterns, not generic credential monitoring).
Protect Yourself
Check If You're Affected
Enter your email to check whether your data appears in this breach. We’ll send a 6-digit code to confirm it’s your address.
Get Free Breach Alerts
Be the first to know when new breaches are disclosed. Free forever — confirm your email with a 6-digit code.
High-Risk? Get an Exposure Audit
Executives, public figures, and high-visibility operators can receive tailored exposure intelligence and hardening guidance.
Request Consultation