Cybercriminals increasingly use large language models (LLMs) to craft high-quality phishing and BEC emails that closely resemble legitimate business communications. Kaspersky's Secure Mail Gateway now includes specialized AI detection technology that analyzes email text to identify machine-generated content and BEC-specific indicators. This allows the solution to detect and block AI-generated BEC emails before they can deceive employees into performing fraudulent actions such as unauthorized fund transfers. The technology leverages the predictable nature of LLM-generated text and common attacker tactics to extract key phrases and detect AI authorship. It is implemented in Kaspersky Security for Mail Server, specifically in the KSMS Plus license with the KSMG 3.1 update, and supports detection in eight languages.

The improved quality of AI-generated BEC emails increases the risk of successful social engineering attacks that can lead to financial losses and credential theft. By detecting these AI-generated BEC attempts early, Kaspersky's technology reduces the likelihood of employees being misled into executing fraudulent requests. This mitigates the financial and operational impact typically associated with BEC attacks.

Kaspersky Secure Mail Gateway 3.1 with the KSMS Plus license includes the AI-generated BEC detection technology, providing an effective mitigation against AI-powered BEC attacks. Organizations using this product should ensure they are updated to this version to benefit from the new detection capabilities. No additional immediate actions are specified by the vendor advisory.