Houzz 2018 Data Breach
Platform · Home design and renovation services · Marketplace + content platform · Global
Houzz Home Design & Renovation Platform Breach (2018): 51 Million User Accounts Including Passwords & Social Media Profiles Exposed
Home design and renovation platform.
Confirmed · ObscureIQ Intelligence
Breach Risk Index i
34/100
Lower riskHigher risk
Moderate: notable exposure with meaningful misuse potential.
Data Sensitivity i
StandardExposed data is largely lower-sensitivity. Standard identity-protection precautions are advised.
51.7MRecords
2018Year
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
Houzz, the home design and renovation platform, suffered a data breach in mid-2018 that exposed the personal information of approximately 48 to 51.7 million users. The company discovered the breach later that year but did not notify affected members until February 2019. The attack vector remains unknown, and no specific threat actor has been publicly identified. The exposed data included names, email addresses, usernames, IP addresses, geographic locations, and passwords stored as salted bcrypt hashes. Some users had linked social media profiles exposed in place of passwords, depending on how they authenticated to the service. This combination of data is particularly sensitive in the home renovation context: geographic and profile information can reveal where someone lives, the value of their home, and their planned spending on renovation work, creating openings for phishing, contractor impersonation, and targeted fraud. Houzz notified affected users by email and required password resets for impacted accounts. No class-action settlement or significant regulatory action specific to this breach has been publicly documented. Affected individuals remain at elevated risk of credential-stuffing attacks if they reused their Houzz password on other services, as well as targeted scams that exploit their home improvement activity.
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…
51.7M records analyzed
About Houzz
Houzz is an online platform for home design, renovation, and professional services, connecting homeowners with interior designers, architects, and contractors while hosting an extensive catalog of home design inspiration content. The company is headquartered in Palo Alto and operates as a private company. It generates revenue through professional subscription services and advertising aimed at home improvement trade professionals.
Why They Hold Your Data
Home-design marketplaces collect customer identity, addresses, project inquiries, payment-adjacent records, and contractor or vendor interactions tied to renovation and interior-design workflows.
Recent Developments
Houzz has continued to operate as a private company focused on its professional marketplace and home design content platform. The company underwent significant workforce reductions in 2023 as part of a cost reduction effort. No major ownership or structural changes have been reported in the most recent period.
Data Points Exposed
7 verified field types
Email Address
Full Name
Geographic location
IP Address
Password High
Social Media Profile
Username
Breach Impact
In mid-2018 Houzz suffered a breach that was not discovered by the company until later that year and disclosed to users in February 2019. The exposed data for approximately 48 million users included email addresses, usernames, IP addresses, geographic locations, passwords stored as salted bcrypt hashes, and linked social media profile information. Houzz notified affected users by email and required password resets for impacted accounts. No class-action settlement or significant regulatory action specific to this breach has been prominently documented in public sources.
Exploitation & Downstream Threats
• Credential stuffing against reused passwords across other platforms | • Targeted phishing campaigns using exposed email addresses | • Doxxing risk from physical address exposure | • Social media account targeting and impersonation
Principal Risk Advisory
What this means for a principal
A consumer-service breach: contact and account data supports phishing, account takeover and profile enrichment. For a high-profile principal the main risk is credible impersonation and enrichment of existing exposure.
What You Should Do
- Reset any reused passwords and enable MFA on email first, then financial accounts.
- 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: cross-reference the exposed identifiers against broker-available data to size and prioritize the principal's wider footprint.
- 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