Experts found an unsecured 16TB database containing 4.3B professional records

4.3 Billion Records Exposed in Massive Lead-Generation Data Leak

A massive, unsecured database containing billions of professional profiles has been left exposed online, creating one of the largest known leaks of lead-generation data to date.  The dataset — spanning more than 16 terabytes — includes LinkedIn-derived information, contact details, and corporate intelligence that could fuel large-scale phishing, fraud, and reconnaissance campaigns if abused. “Large datasets like this one are a prime target for m…

16TB of MongoDB Database Exposes 4.3 Billion Lead Gen Records

Cybersecurity researchers discovered an unsecured 16TB database exposing 4.3 billion professional records, including names, emails, and LinkedIn data. Learn what happened, why this massive data leak enables new scams, and how to protect your PII.

Experts Found An Unsecured 16TB Database Containing 4.3B Professional Records - Cybernoz - Cybersecurity News

Experts found an unsecured 16TB database containing 4.3B professional records Pierluigi Paganini December 14, 2025 An open 16TB database exposed 4.3B professional records. It was unsecured and only closed after researchers alerted the owner. A 16TB unsecured MongoDB database exposed about 4.3 billion professional records, mainly LinkedIn-style data, enabling large-scale AI-driven social-engineering attacks. The researcher Bob Dia…

Experts found an unsecured 16TB database containing 4.3B professional records

专家发现一个未加密的16TB数据库暴露了43亿条职业记录，包含姓名、邮箱等信息。研究人员于2025年11月23日发现后两天内锁定该数据库。这些数据可用于大规模AI驱动的社会工程攻击。