Cybersecurity Breach at Feldstein & Stewart CPAs, LLP

Incident Date:

April 12, 2024

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Cybersecurity Breach at Feldstein & Stewart CPAs, LLP


Feldstein & Stewart CPAs, LLP




New York, USA

New York, USA

First Reported

April 12, 2024

Ransomware Attack on Feldstein & Stewart CPAs, LLP

Company Profile

Feldstein & Stewart CPAs, LLP, a CPA firm based in New York, provides accounting, auditing, tax, and consulting services to individuals, businesses, and non-profit organizations. The firm is known for having multiple partners, including Mark Stewart, CPA, indicating a moderate to large size.

Industry Standing

This auditing and accounting firm operates in the Business Services sector, offering a range of financial services similar to other CPA firms. The company's profile on showcases their expertise in accounting and financial management.


The Play Ransomware group targeted Feldstein & Stewart CPAs, LLP, exploiting vulnerabilities such as exposed RDP servers and known software vulnerabilities like FortiOS and Microsoft Exchange. The group employs a double-extortion model, exfiltrating sensitive data before encrypting systems with AES-RSA hybrid encryption and adding a ".play" extension to file names.


Recent Ransomware Attacks

The Recent Ransomware Attacks (RRA) site acts as a watchtower, providing you with near real-time ransomware tracking of attacks, groups and their victims. Given threat actors’ overarching, lucrative success so far, ransomware attacks have become the most ubiquitous, and financially and informationally impactful cyber threat to businesses and organizations today.

The site’s data is generated based on hosting choices of real-world threat actors, and a handful of other trackers. While sanitization efforts have been taken, we cannot guarantee 100% accuracy of the data. Attack updates will be made as source data is reported by reputable sources. By viewing, accessing, or using RRA you acknowledge you are doing so at your own risk.