Coremail AI Lab: Leveraging Advanced Contextual and Visual Intelligence for Phishing Email Detection

In this increasingly digital age, the need for email security is paramount. Emerging advanced threat emails: phishing emails using social engineering techniques, phishing emails imitating public security laws, etc., all require more advanced defense strategies.

Coremail email security artificial intelligence laboratory integrates advanced text context understanding and intelligent image processing capabilities, which can significantly enhance the detection ability of phishing emails and provide services for tens of millions of end users in various industries.

Introduction to Coremail Email Security Artificial Intelligence Lab

Coremail Email Security AI Lab (Email Security AI Lab), relying on Coremail's rich application scenarios, massive big data and first-class scientific and technological talents, focuses on applying AI intelligent technologies such as natural language processing, computer vision, and large-scale language models to electronic An innovative breakthrough in the field of email security protection.

At present, the email security artificial intelligence laboratory has achieved gratifying results in the field of anti-spam, forming a closed loop of intelligent optimization of anti-spam algorithms: based on AI technology, it realizes intelligent collection, identification, warehousing, feedback, self-learning and training of email samples, and finally improves the ability of algorithm models , constantly optimize the central engine, and maintain a steady improvement in the quality of anti-spam.

Coremail AI Lab: Leveraging Advanced Contextual and Visual Intelligence for Phishing Email Detection

01. Advanced text context understanding

Advanced text context understanding is an AI algorithm capable of in-depth processing of natural language. Its unique bi-directional understanding enables it to understand the semantic context of words in a sentence, providing more precise linguistic interpretations.

In the world of email security, a high degree of contextual awareness of email text is invaluable. It enables the system to understand the subtle language commonly used in phishing emails, which are often designed to trick users into downloading attachments, clicking links and disclosing personal information. The high interception efficiency (99.8%) of the CACTER email security gateway benefits from the strong comprehensive capabilities of the Coremail email security artificial intelligence laboratory.

Traditional email security systems are often only able to detect some common phishing emails, such as messages asking you to provide personal information or ask you to click a suspicious link. However, attackers have begun using more subtle language tricks to trick people, making them difficult for traditional email security systems to recognize.

This is where advanced text context understanding techniques can come in handy. It can analyze the language and context of the message to determine if there is any suspicious behavior or request. For example, if a message appears to be from your bank, but the language does not match the language or format normally used by the bank, it may be a phishing message. Advanced text context understanding technology can identify this unusual language use and flag the message as suspicious for further investigation or blocking.

In addition, advanced text context understanding technology can also analyze the relationship between the sender and recipient of the message . For example, if you've never corresponded with a sender and you suddenly receive a message asking for your personal information, it could be a phishing message. Advanced text context understanding technology can identify this unusual relationship and flag the message as suspicious.

Case: A phishing email with the subject of "Notice on Registering to Use the ChatGPT Service in School" , the phishing URL is: iaaa.pku-edu.cn.com

case study

Recently, many enterprises and institutions have encountered phishing attacks. The attackers use subtle language skills to send fraudulent phishing emails, such as the phishing emails with the subject "Notice about registering for the ChatGPT service on campus" , which makes traditional email security systems and users have difficulty identifying these messages.

Fortunately, however, AI algorithms equipped with advanced text context understanding capabilities can successfully identify and mark these emails, thereby avoiding the disclosure of sensitive information and economic losses. CACTER email security gateway and CAC also benefit from the application of this more advanced AI algorithm to achieve anti-phishing, anti-spam and anti-theft account.

02. Intelligent image processing technology

Intelligent image processing technology is a sophisticated model mainly used for image recognition tasks, which is good at identifying hidden threats in images . Intelligent image processing technology is also very important in the application of phishing emails.

Attackers often include authentic-looking images, such as a business logo or brand logo, in phishing emails to trick recipients. These images may link to malicious sites or contain malicious codes that lead to attacks on the recipients. In such cases, smart image processing techniques can come in handy. It analyzes details in images and determines whether they are real .

Businesses are increasingly being attacked by phishing emails with seemingly innocuous image attachments that actually hide malicious links. Attackers carry out the attack by including a benign-looking picture in the email to trick the recipient.

Case: The subject of the email is "[External] Notice on Tax Refund Declaration for xxxxxx General Taxpayers" , and the link after scanning the QR code in the email body is "Hxxp://akadmin.dhkkfju.ink", inducing users to enter their names and identities Certificate number, mobile phone number, bank card number

case study

In recent years, a document with the subject of "salary subsidy" has been quietly spread in phishing emails, with a "QR code" embedded in it, inducing everyone to scan the code and apply for it by themselves within 24 hours. As everyone knows, this is a "phishing website" carefully set up by criminals. When users scan the code, they are taken to a highly realistic phishing site that asks them to enter sensitive information such as usernames, passwords and credit card numbers.

For this kind of attack method, the intelligent image processing technology integrated by Coremail email security artificial intelligence laboratory can help enterprises and individuals identify and block false images and malicious codes contained in various phishing emails. It can analyze details in images to determine if they are real and detect hidden messages or codes in images. By using intelligent image processing technology, businesses and individuals can better protect their confidential information and property from the threat of phishing attacks.

03. Comprehensive defense against phishing

Coremail email security artificial intelligence laboratory integrates advanced text context understanding and intelligent image processing technology into email security products. This two-pronged approach dramatically improves the ability to identify phishing emails, ensuring inboxes are safer than ever. The system not only identifies potential phishing threats, but also learns and adapts to new phishing strategies through the self-learning capabilities of the text analysis model and image processing model .

We firmly believe that security should not be compromised, it is more than a defense system; it is an active guardian, always vigilant against the ever-evolving threat of hacking.

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Origin blog.csdn.net/CACTER_S/article/details/132305351