Excerpt from The Hacker News Article, Published on September 3, 2025

In January 2025, a significant data leak was discovered at Chinese AI firm DeepSeek, exposing more than 1 million sensitive log streams, including chat histories and secret keys. This incident highlights the critical risks organizations face from data leaks due to misconfigurations, insider threats, and human errors. The data leak occurred via a publicly accessible ClickHouse database, allowing attackers to gain full control over internal data. Wiz Research, the cybersecurity team that found the leak, immediately notified DeepSeek, which moved quickly to fix the vulnerability.

Data leaks can happen intentionally, such as through phishing or insider exploitation, or unintentionally from simple mistakes like misdirected emails or cloud storage misconfigurations. These incidents can cause severe financial, legal, and reputational damage, especially with today’s strict global regulations like GDPR and CCPA enforcing heavy fines.

To protect against data leaks, organizations should enforce least-privilege access, adopt data loss prevention (DLP) solutions, classify sensitive data, conduct regular audits, and provide employee training to minimize risks. Outpost24’s CompassDRP is one such tool that helps detect leaked documents and code across repositories to identify exposed sensitive data early.

Mitigating data leaks is vital as companies increasingly rely on digital and cloud environments, which expand the attack surface. Combining technology, operational improvements, and staff awareness is key to preventing costly data leaks and safeguarding business continuity.

To delve deeper into this topic, The Hacker News article.