Category: Data Breach News

Data Breach Summary

AdGuard DNS, a renowned provider of ad filtering and tracking protection services through DNS server configuration, has fallen victim to a significant security breach. On 15th December 2023, the breach was discovered by our team at InsecureWeb, an esteemed company specializing in scanning the dark web for leaked security vulnerabilities. The breach involved the hacking of, resulting in the theft of 465KB of sensitive data. The cybercriminal responsible for this breach goes by the alias “#Ninja Defender.”

Where and How?

AdGuard DNS, a trusted service used by many individuals and organizations, experienced a breach on their domain The breach was detected by our vigilant team at InsecureWeb, who work tirelessly to identify security vulnerabilities across various platforms. The stolen data primarily included emails of undisclosed victims. The breach originated from, a popular messaging platform. It is crucial to note that the breach was detected and addressed promptly to minimize any potential harm or misuse of the compromised information.

A Screenshot of the data can be found below:

Company Data Breach History

This is not the first time that InsecureWeb has detected a security breach in AdGuard DNS. The company has consistently prioritized the protection of user data and implemented strong security measures to protect against potential breaches. This breach serves as a reminder that even the most security-conscious organizations can fall victim to determined hackers.

Recommendations for Personal Data Protection

How Users Can Protect Their Information

To protect their personal information and accounts from being compromised, users should take the following steps:

– Change their passwords frequently, with a combination of letters, numbers, and symbols.

– Enable two-factor authentication whenever possible.

– Use unique passwords for each account, to prevent hackers from accessing multiple accounts with the same password.

– Be cautious of suspicious emails or messages, as they may contain phishing links that can compromise their accounts.

– Regularly monitor their accounts for any suspicious activity.

What is InsecureWeb?

InsecureWeb is a Dark Web monitoring service that keeps track of recent data breaches and tracks their impact by monitoring the darkest places of the internet.

Our commitment lies in providing top-notch cybersecurity services to our clients. Through continuous monitoring of the dark web and advanced threat detection methodologies, we strive to identify potential breaches promptly, enabling swift response and mitigation efforts. With our state-of-the-art tools and expertise, we prioritize the confidentiality, integrity, and availability of our clients’ data.