{"id":45755,"date":"2022-03-16T23:11:51","date_gmt":"2022-03-16T23:11:51","guid":{"rendered":"https:\/\/www.darkreading.com\/emerging-tech\/enhancing-dlp-with-natural-language-understanding-for-better-email-security"},"modified":"2022-03-16T23:11:51","modified_gmt":"2022-03-16T23:11:51","slug":"enhancing-dlp-with-natural-language-understanding-for-better-email-security","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/enhancing-dlp-with-natural-language-understanding-for-better-email-security\/","title":{"rendered":"Enhancing DLP With Natural Language Understanding for Better Email Security"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/eu-images.contentstack.com\/v3\/assets\/blt66983808af36a8ef\/blt1fa07a0d5ae58a2d\/62331767ba1c6a10726da896\/robot-book-KittipongJirasukhanont-alamy.jpg\" class=\"ff-og-image-inserted\"><\/div>\n<p>Email security startup Armorblox\u2019s new Advanced Data Loss Prevention service highlights how the power of artificial intelligence can be harnessed to protect enterprise communications such as email.<\/p>\n<p>One of the most intriguing areas of artificial intelligence research focuses on how machines can work with natural language \u2013 the language used by humans \u2013 instead of constructed (programming) languages like Java, C, or Rust. Natural language processing focuses on machines being able to take in language as input and transform it into a standard structure in order to derive information. Natural language understanding \u2013 which is what Armorblox incorporated into its platform \u2013 refers to interpreting the language and identifying context, intent, and sentiment being expressed. For example, NLP will take the sentence, \u201cPlease crack the windows, the car is getting hot,\u201d as a request to literally crack the windows, while NLU will infer the request is actually about opening the window.<\/p>\n<p>Natural language models are fairly mature and are already being used in various security use cases, especially in detection and prevention, says Will Lin, Managing Director at Forgepoint Capital. NLP\/NLU is especially well-suited to help defenders figure out what they have in the corporate environment. <\/p>\n<p>\u201cOrganizations and their customers create so much data, NLP\/NLU is invaluable in helping a company understand where a company\u2019s riskiest data is, how it is flowing throughout the organization and in building controls to prevent misuse,\u201d Lin says.<\/p>\n<p><strong>NLU in Corporate Email<\/strong><\/p>\n<p>NLU is well-suited for scanning enterprise email to detect and filter out spam and other malicious content, as each message contains all the context needed to infer malicious intent. The metadata of the message, such as the IP address and domain it was sent from and who it was sent to, combined with the content in the body and attachments provide signals to assess whether a message is good or not, says Anand Raghavan, co-founder and CPO of Armorblox. And thanks to the fact that Google and Microsoft already scan email messages to filter out spam and potential phishing messages in their email services, people are much more comfortable with the idea of machines reading their messages to filter out bad ones.<\/p>\n<p>\u201cWhen was the last time you looked your spam box in Gmail?\u201d Raghavan asks, noting that people trust that malicious messages have been removed.<\/p>\n<p>Beyond spam, NLU could be useful at scale for parsing email messages used in business-email-compromise scams, says Ferdinand Montenegro, senior principal analyst at Omdia. Email-based phishing attacks account for 90% of data breaches, so security teams are looking at ways to filter out those messages from even reaching the user.<\/p>\n<p>While security awareness training is valuable, it is not realistic to rely on training alone to get to 100% security. Human beings have authority bias, where they are more inclined to believe something is true if it comes from someone in a position of power or authority, such as a boss. Machines are less susceptible and would be able to see other signs that the message instructing the recipient to initiate a wire transfer to a new destination may not actually be coming from the CEO.<\/p>\n<p>Even with multiple trainings, there is always going to be that small subset of users who will click on the link in an email, or think a fraudulent message is actually legitimate. Raghavan cites a recent report by insurance provider AIG, the most common cybersecurity-related claim was BEC scams. <\/p>\n<p>\u201cYou can\u2019t train that last 14% to not click,\u201d Raghavan says, which is why technology is necessary to make sure those messages aren\u2019t even in the inbox for the user to see.<\/p>\n<p>Another variation involves attacks where the email address of a known supplier or vendor is compromised in order to send the company an invoice. As far as the recipient is concerned, this is a known and legitimate contact, and it is not uncommon that payment instructions will change. The recipient will pay the invoice, not knowing that the funds are going somewhere else. There is not much that training alone can do to detect this kind of fraudulent message. It will be difficult for technology to identify these messages without NLU, Raghavan says.<\/p>\n<p><strong>NLU in DLP<\/strong><\/p>\n<p>Armorblox\u2019s new Advanced Data Loss Prevention service uses NLU to protect organizations against accidental and malicious leaks of sensitive data, Raghavan says. Armorblox analyzes email content and attachments to identify examples of sensitive information leaving the enterprise via email channels. <\/p>\n<p>Compared to legacy DLP, using NLU reduces false positives by a factor of 10, Armorblox claims.<\/p>\n<p>DLP is pretty straightforward, as it looks for key information that may be sent to unauthorized recipients. Traditionally, DLP relies on static rules and regular expressions (regex), such as looking for specific keywords (such as the codename of a top-secret project) or looking for strings of nine numbers (which would look like Social Security numbers). <\/p>\n<p>However, they aren\u2019t enough, as some things may be missed. If the sender is being very careful to not use the codename, then legacy DLP won\u2019t detect that message. It is inefficient\u2014and time-consuming\u2014to expect the security team to constantly keep coming up with rules to catch every possible combination. Or the rules may be such that messages that don\u2019t contain sensitive content are also being flagged. If the DLP is configured to flag every message containing nine-digit strings, that means every message with a Zoom meeting link, Raghavan notes.<\/p>\n<p>Understanding the content of the messages is key, which is why NLU is a natural fit for DLP, Raghavan says. Using NLU also means the DLP engine doesn\u2019t need to be manually updated with newer rules. Policies are constantly updated as the engine learns from the messages that come in.<\/p>\n<p><strong>NLU in Cybersecurity<\/strong><\/p>\n<p>Raghavan says Armorblox is looking at expanding beyond email to look at other types of corporate messaging platforms, such as Slack. However,&nbsp;NLU \u2013 and NLP \u2013 also has possibilities&nbsp;&nbsp;outside of email and communications.&nbsp;Classifying data objects at cloud scale is a natural use case that powers many incident response and compliance workflows, Lin says. Two of Forgepoint Capital&#8217;s portfolio companies \u2013 Symmetry Systems and DeepSee \u2013 are applying NLP models to help build classifiers and knowledge graphs.<\/p>\n<p>NLU can also be used to parse vulnerability descriptions in disclosure or bug reports and potentially help optimize operations to be better at interpreting requests, Montengegro says.<\/p>\n<p>Both Lin and Montenegro stress that there is a lot of work that needs to be done before NLU (and NLP) becomes commonplace in cybersecurity.<\/p>\n<p>\u201cThat said NLU is HARD. Stray too far off use cases and I think things break down,\u201d Montenegro says. <\/p>\n<p>Read More <a href=\"https:\/\/www.darkreading.com\/emerging-tech\/enhancing-dlp-with-natural-language-understanding-for-better-email-security\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Natural language understanding is well-suited for scanning enterprise email to detect and filter out spam and other malicious content. Armorblox introduces a data loss prevention service to its email security platform using NLU.Read More <a href=\"https:\/\/www.darkreading.com\/emerging-tech\/enhancing-dlp-with-natural-language-understanding-for-better-email-security\">HERE<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[151],"tags":[],"class_list":["post-45755","post","type-post","status-publish","format-standard","hentry","category-darkreading-ti"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Enhancing DLP With Natural Language Understanding for Better Email Security 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.threatshub.org\/blog\/enhancing-dlp-with-natural-language-understanding-for-better-email-security\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enhancing DLP With Natural Language Understanding for Better Email Security 2026 | ThreatsHub Cybersecurity News\" \/>\n<meta property=\"og:description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.threatshub.org\/blog\/enhancing-dlp-with-natural-language-understanding-for-better-email-security\/\" \/>\n<meta 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