ChatGPT Atlas Rated Worst for Privacy Among Browsers in 2025

The newly launched ChatGPT Atlas has been identified as the least secure web browser for privacy in 2025, according to a recent report by Digitain. The browser failed all state partitioning tests, indicating it cannot effectively prevent websites from tracking users across different browsing sessions. Additionally, the popular Chrome browser scored poorly in privacy measures, achieving only 41 out of 100 for its ability to secure user connections.

Digitain assessed 13 widely used web browsers, focusing on three critical areas: user tracking and identification (fingerprinting), data collection blocking (through cookies and trackers), and the security of connections between websites. The results culminated in a Privacy Risk Score ranging from 1 to 99, with higher scores indicating less privacy protection. A score of 99 represents almost no privacy at all.

Privacy Risk Scores of Various Browsers

The findings showcased that ChatGPT Atlas scored a dismal 1 point in anti-fingerprinting protection and completely failed to block trackers, receiving a score of 0. This lack of protection extends to cookies and content trackers, leaving users vulnerable to data collection. Furthermore, the browser managed only 24 points in connection and navigation security, highlighting significant weaknesses in basic security protocols.

Chrome, despite its widespread usage, received a Privacy Risk Score of 76. The browser earned a score of 68 in preventing websites from identifying users but failed to block trackers altogether, scoring 0. This means that user activity remains exposed to tracking by various companies. Chrome’s connection security score of 41 also fell short compared to more privacy-focused alternatives.

Vivaldi, another notable browser, matched Chrome’s 68 points for anti-fingerprinting but similarly failed in blocking trackers, receiving a score of 0 in that category. Its connection security score was slightly lower at 37 points. Despite being marketed as a privacy-conscious alternative, the results indicate that Vivaldi offers limited protection against online tracking and data harvesting.

Following closely, Microsoft Edge scored 68 points in anti-fingerprinting and achieved 15 in tracker blocking, demonstrating minor improvements over its competitors. Edge also matched Chrome’s connection security rating of 41 points. While it performs slightly better than Chrome and Vivaldi, Edge still lacks adequate privacy protection for users concerned about data collection.

Opera, ranking among the five least private browsers, similarly scored 68 for anti-fingerprinting. Although it provided better tracker blocking capabilities with 25 points, it still falls short in overall privacy protection. Its connection security rating matched that of Chrome and Edge at 41 points.

Concerns Over AI-Powered Browsers

The rise of AI-driven browsers, such as ChatGPT Atlas and the Comet browser from Perplexity, has raised concerns regarding user privacy. These tools rely on data collection to enhance their functionality, potentially gathering more personal information than users might recognize. As privacy becomes an increasingly critical concern, the findings from Digitain’s report underscore the pressing need for users to evaluate their browser choices carefully.

The report serves as a reminder that even popular browsers may not prioritize user privacy effectively. With the growing awareness of data collection practices, users are urged to consider alternatives that offer more robust privacy protections. As the digital landscape continues to evolve, prioritizing security and privacy remains essential for maintaining user trust.