Category: Data Breach News

Data Breach Summary

In a recent security breach detected by InsecureWeb, renowned cybersecurity firm F-Secure fell victim to an attack on their domain, The breach, orchestrated by the hacker group #NinjaDefender, occurred on an undisclosed date. InsecureWeb discovered the breach on December 15, 2023, during routine monitoring of the dark web.

Approximately 3.77KB of data was stolen in this incident. The compromised information includes emails belonging to F-Secure. Although the breach was detected promptly, the stolen data poses a significant risk to the privacy and security of F-Secure and its stakeholders.

Where and How?

The security breach targeting F-Secure took place on their official domain, The exact details of how the breach occurred have not been disclosed, but it is evident that #NinjaDefender exploited vulnerabilities on the website to gain unauthorized access.

As a company specializing in security vulnerabilities, InsecureWeb has identified the breach on a platform called While the connection between the breach and is unclear, it is crucial for organizations to remain vigilant and secure all aspects of their online presence to prevent such incidents.

A Screenshot of the data can be found below:

Company Data Breach History

F-Secure, a leading provider of antivirus software and security solutions, has unfortunately experienced prior security breaches. InsecureWeb’s detection of this breach on is not the first time the company has faced such a threat. However, specific details about previous breaches have been redacted or are not publicly available.

It is essential for organizations like F-Secure to take proactive measures to strengthen their security infrastructure and protect sensitive data from unauthorized access. Cybersecurity threats are constantly evolving, and staying ahead of potential breaches is a top priority for all businesses.

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.