The Houzz Breach Happened in 2018. The Data Is Still Out There.

HEROIC analysts first flagged the Houzz breach when monitoring credential stuffing repositories in late 2018. The breach occured on December 31, 2018 and exposed nearly 47 million records from the popular home design and remodeling platform. The leaked data included email addresses, usernames, IP addresses, phone numbers, and full names, making Houzz one of the larger consumer platform breaches of that period. What is partcularly alarming is that this data remains accessable and actively traded years after the original incident.

How 47 Million Exposed Identities Enable Account Takeover

The Houzz breach handed attackers a ready-made toolkit for account takeover. With email addresses, usernames, and phone numbers all in one dataset, threat actors can automate credential stuffing across hundreds of platforms, attempt SMS-based account recovery, and build convincing pretexts for social engineering. The scale of the exposure means a statistically significant number of victims are beleived to still be using the same credentials elsewhere.

What Was Exposed in the Houzz Breach

• Email Address
• Username
• IP Address
• Phone Number
• First Name
• Last Name

Why the Houzz Breach Still Matters Years Later

The Houzz breach happened over six years ago. The data just keeps circulating. Breached records do not disappear from criminal marketplaces once they are sold. This dataset has been recombined with other leaks, enriched with additional data points, and repackaged for seperate fraud campaigns including identity theft, financial fraud, and targeted phishing. Users who have not taken action since 2018 remain exposed today.

How Database Breaches Work

A database breach occurs when attackers gain unauthorized access to a web platform's stored user records, often through exploiting unpatched vulnerabilities or weak access controls. Once inside the database, the attacker extracts user tables in bulk and exfiltrates the raw data. That data is then monetized on underground forums and Telegram channels, where buyers use it for credential stuffing, identity theft, and account fraud at scale.

Check If Your Data Was Exposed

HEROIC's free breach scanner checks your email against over 400 billion compromised records, including the Houzz breach dataset. Scan for free right now and find out whether your personal information is currently in circulation among cybercriminals.