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2024-05-14 06:00:46 | Arrêt de cybersécurité du mois: les attaques d'identité qui ciblent la chaîne d'approvisionnement Cybersecurity Stop of the Month: Impersonation Attacks that Target the Supply Chain (lien direct) |
This blog post is part of a monthly series, Cybersecurity Stop of the Month, which explores the ever-evolving tactics of today\'s cybercriminals. It focuses on the critical first three steps in the attack chain in the context of email threats. The goal of this series is to help you understand how to fortify your defenses to protect people and defend data against emerging threats in today\'s dynamic threat landscape. The critical first three steps of the attack chain-reconnaissance, initial compromise and persistence. So far in this series, we have examined these types of attacks: Supplier compromise EvilProxy SocGholish eSignature phishing QR code phishing Telephone-oriented attack delivery (TOAD) Payroll diversion MFA manipulation Supply chain compromise Multilayered malicious QR code attack In this post, we will look at how adversaries use impersonation via BEC to target the manufacturing supply chain. Background BEC attacks are sophisticated schemes that exploit human vulnerabilities and technological weaknesses. A bad actor will take the time to meticulously craft an email that appears to come from a trusted source, like a supervisor or a supplier. They aim to manipulate the email recipient into doing something that serves the attacker\'s interests. It\'s an effective tactic, too. The latest FBI Internet Crime Report notes that losses from BEC attacks exceeded $2.9 billion in 2023. Manufacturers are prime targets for cybercriminals for these reasons: Valuable intellectual property. The theft of patents, trade secrets and proprietary processes can be lucrative. Complex supply chains. Attackers who impersonate suppliers can easily exploit the interconnected nature of supply chains. Operational disruption. Disruption can cause a lot of damage. Attackers can use it for ransom demands, too. Financial fraud. Threat actors will try to manipulate these transactions so that they can commit financial fraud. They may attempt to alter bank routing information as part of their scheme, for example. The scenario Proofpoint recently caught a threat actor impersonating a legitimate supplier of a leading manufacturer of sustainable fiber-based packaging products. Having compromised the supplier\'s account, the imposter sent an email providing the manufacturer with new banking details, asking that payment for an invoice be sent to a different bank account. If the manufacturer had complied with the request, the funds would have been stolen. The threat: How did the attack happen? Here is a closer look at how the attack unfolded: 1. The initial message. A legitimate supplier sent an initial outreach email from their account to the manufacturing company using an email address from their official account. The message included details about a real invoice that was pending payment. The initial email sent from the supplier. 2. The deceptive message. Unfortunately, subsequent messages were not sent from the supplier, but from a threat actor who was pretending to work there. While this next message also came from the supplier\'s account, the account had been compromised by an attacker. This deceptive email included an attachment that included new bank payment routing information. Proofpoint detected and blocked this impersonation email. In an attempt to get a response, the threat actor sent a follow-up email using a lookalike domain that ended in “.cam” instead of “.com.” Proofpoint also condemned this message. An email the attacker sent to mimic the supplier used a lookalike domain. Detection: How did Proofpoint prevent this attack? Proofpoint has a multilayered detection stack that uses a sophisticated blend of artificial intelligence (AI) and machine learning (ML) detection | Ransomware Data Breach Tool Vulnerability Threat | ChatGPT | ★★ |
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2024-05-06 07:54:03 | Genai alimente la dernière vague des menaces de messagerie modernes GenAI Is Powering the Latest Surge in Modern Email Threats (lien direct) |
Generative artificial intelligence (GenAI) tools like ChatGPT have extensive business value. They can write content, clean up context, mimic writing styles and tone, and more. But what if bad actors abuse these capabilities to create highly convincing, targeted and automated phishing messages at scale? No need to wonder as it\'s already happening. Not long after the launch of ChatGPT, business email compromise (BEC) attacks, which are language-based, increased across the globe. According to the 2024 State of the Phish report from Proofpoint, BEC emails are now more personalized and convincing in multiple countries. In Japan, there was a 35% increase year-over-year for BEC attacks. Meanwhile, in Korea they jumped 31% and in the UAE 29%. It turns out that GenAI boosts productivity for cybercriminals, too. Bad actors are always on the lookout for low-effort, high-return modes of attack. And GenAI checks those boxes. Its speed and scalability enhance social engineering, making it faster and easier for attackers to mine large datasets of actionable data. As malicious email threats increase in sophistication and frequency, Proofpoint is innovating to stop these attacks before they reach users\' inboxes. In this blog, we\'ll take a closer look at GenAI email threats and how Proofpoint semantic analysis can help you stop them. Why GenAI email threats are so dangerous Verizon\'s 2023 Data Breach Investigations Report notes that three-quarters of data breaches (74%) involve the human element. If you were to analyze the root causes behind online scams, ransomware attacks, credential theft, MFA bypass, and other malicious activities, that number would probably be a lot higher. Cybercriminals also cost organizations over $50 billion in total losses between October 2013 and December 2022 using BEC scams. That represents only a tiny fraction of the social engineering fraud that\'s happening. Email is the number one threat vector, and these findings underscore why. Attackers find great success in using email to target people. As they expand their use of GenAI to power the next generation of email threats, they will no doubt become even better at it. We\'re all used to seeing suspicious messages that have obvious red flags like spelling errors, grammatical mistakes and generic salutations. But with GenAI, the game has changed. Bad actors can ask GenAI to write grammatically perfect messages that mimic someone\'s writing style-and do it in multiple languages. That\'s why businesses around the globe now see credible malicious email threats coming at their users on a massive scale. How can these threats be stopped? It all comes down to understanding a message\'s intent. Stop threats before they\'re delivered with semantic analysis Proofpoint has the industry\'s first predelivery threat detection engine that uses semantic analysis to understand message intent. Semantic analysis is a process that is used to understand the meaning of words, phrases and sentences within a given context. It aims to extract the underlying meaning and intent from text data. Proofpoint semantic analysis is powered by a large language model (LLM) engine to stop advanced email threats before they\'re delivered to users\' inboxes in both Microsoft 365 and Google Workspace. It doesn\'t matter what words are used or what language the email is written in. And the weaponized payload that\'s included in the email (e.g., URL, QR code, attached file or something else) doesn\'t matter, either. With Proofpoint semantic analysis, our threat detection engines can understand what a message means and what attackers are trying to achieve. An overview of how Proofpoint uses semantic analysis. How it works Proofpoint Threat Protection now includes semantic analysis as an extra layer of threat detection. Emails must pass through an ML-based threat detection engine, which analyzes them at a deeper level. And it does | Ransomware Data Breach Tool Vulnerability Threat | ChatGPT | ★★★ |
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2023-12-27 11:00:00 | Cybersécurité post-pandémique: leçons de la crise mondiale de la santé Post-pandemic Cybersecurity: Lessons from the global health crisis (lien direct) |
The content of this post is solely the responsibility of the author. AT&T does not adopt or endorse any of the views, positions, or information provided by the author in this article. Beyond ‘just’ causing mayhem in the outside world, the pandemic also led to a serious and worrying rise in cybersecurity breaches. In 2020 and 2021, businesses saw a whopping 50% increase in the amount of attempted breaches. The transition to remote work, outdated healthcare organization technology, the adoption of AI bots in the workplace, and the presence of general uncertainty and fear led to new opportunities for bad actors seeking to exploit and benefit from this global health crisis. In this article, we will take a look at how all of this impacts the state of cybersecurity in the current post-pandemic era, and what conclusions can be drawn. New world, new vulnerabilities Worldwide lockdowns led to a rise in remote work opportunities, which was a necessary adjustment to allow employees to continue to earn a living. However, the sudden shift to the work-from-home format also caused a number of challenges and confusion for businesses and remote employees alike. The average person didn’t have the IT department a couple of feet away, so they were forced to fend for themselves. Whether it was deciding whether to use a VPN or not, was that email really a phishing one, or even just plain software updates, everybody had their hands full. With employers busy with training programs, threat actors began intensifying their ransomware-related efforts, resulting in a plethora of high-profile incidents in the last couple of years. A double-edged digital sword If the pandemic did one thing, it’s making us more reliant on both software and digital currencies. You already know where we’re going with this—it’s fertile ground for cybercrime. Everyone from the Costa Rican government to Nvidia got hit. With the dominance of Bitcoin as a payment method in ransoming, tracking down perpetrators is infinitely more difficult than it used to be. The old adage holds more true than ever - an ounce of prevention is worth a pound of cure. To make matters worse, amongst all that chaos, organizations also had to pivot away from vulnerable, mainstream software solutions. Even if it’s just choosing a new image editor or integrating a PDF SDK, it’s an increasing burden for businesses that are already trying to modernize or simply maintain. Actors strike where we’re most vulnerable Healthcare organizations became more important than ever during the global coronavirus pandemic. But this time also saw unprecedented amounts of cybersecurity incidents take place as bad actors exploited outdated cybersecurity measures. The influx of sudden need caused many overburdened healthcare organizations to lose track of key cybersecurity protocols that could help shore up gaps in the existing protective measures. The United States healthcare industry saw a 25% spike in successful data breaches during the pandemic, which resulted in millions of dollars of damages and the loss of privacy for thousands of patients whose data was compromis | Data Breach Vulnerability Threat Studies Prediction | ChatGPT | ★★ |
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2023-06-20 13:00:00 | Cyberheistnews Vol 13 # 25 [empreintes digitales partout] Les informations d'identification volées sont la cause profonde n ° 1 des violations de données CyberheistNews Vol 13 #25 [Fingerprints All Over] Stolen Credentials Are the No. 1 Root Cause of Data Breaches (lien direct) |
CyberheistNews Vol 13 #25 | June 20th, 2023
[Fingerprints All Over] Stolen Credentials Are the No. 1 Root Cause of Data Breaches
Verizon\'s DBIR always has a lot of information to unpack, so I\'ll continue my review by covering how stolen credentials play a role in attacks.
This year\'s Data Breach Investigations Report has nearly 1 million incidents in their data set, making it the most statistically relevant set of report data anywhere.
So, what does the report say about the most common threat actions that are involved in data breaches? Overall, the use of stolen credentials is the overwhelming leader in data breaches, being involved in nearly 45% of breaches – this is more than double the second-place spot of "Other" (which includes a number of types of threat actions) and ransomware, which sits at around 20% of data breaches.
According to Verizon, stolen credentials were the "most popular entry point for breaches." As an example, in Basic Web Application Attacks, the use of stolen credentials was involved in 86% of attacks. The prevalence of credential use should come as no surprise, given the number of attacks that have focused on harvesting online credentials to provide access to both cloud platforms and on-premises networks alike.
And it\'s the social engineering attacks (whether via phish, vish, SMiSh, or web) where these credentials are compromised - something that can be significantly diminished by engaging users in security awareness training to familiarize them with common techniques and examples of attacks, so when they come across an attack set on stealing credentials, the user avoids becoming a victim.
Blog post with links:https://blog.knowbe4.com/stolen-credentials-top-breach-threat
[New PhishER Feature] Immediately Add User-Reported Email Threats to Your M365 Blocklist
Now there\'s a super easy way to keep malicious emails away from all your users through the power of the KnowBe4 PhishER platform!
The new PhishER Blocklist feature lets you use reported messages to prevent future malicious email with the same sender, URL or attachment from reaching other users. Now you can create a unique list of blocklist entries and dramatically improve your Microsoft 365 email filters without ever l |
Ransomware Data Breach Spam Malware Hack Vulnerability Threat Cloud | ChatGPT ChatGPT | ★★ |
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2023-06-06 02:59:40 | Ce que font les API et ne faites pas What APIs Do and Don\\'t Do (lien direct) |
Il est difficile d'être dans le domaine de la technologie et de ne pas entendre parler d'API ces jours-ci.Qu'il s'agisse du lancement de l'API Chatgpt ou des nouvelles d'une violation de données importante sur Twitter, les API ont leur temps sous les projecteurs.Pourtant, malgré leur ubiquité, beaucoup ont encore des questions sur les capacités (et les limitations) des API.À quoi servent les API?Que font-ils?Et que sont-ils incapables de faire à l'ère actuelle?Qu'est-ce qu'une API?Une API est une interface de programmation d'applications - un petit logiciel conçu pour la communication.Une API sert de messager entre un utilisateur final et un site Web ou une application ...
It\'s hard to be in the realm of technology and not hear about APIs these days. Whether it\'s the launch of the ChatGPT API or news of a significant data breach at Twitter, APIs are having their time in the spotlight. Yet, despite their ubiquity, many still have questions about APIs\' capabilities (and limitations). What are APIs for? What do they do? And what are they unable to do in the current era? What is an API? An API is an Application Programming Interface - a small piece of software designed for communication. An API serves as a messenger between an end user and a website or application... |
Data Breach | ChatGPT ChatGPT | ★★ |
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2023-05-09 13:00:00 | Cyberheistnews Vol 13 # 19 [Watch Your Back] Nouvelle fausse erreur de mise à jour Chrome Attaque cible vos utilisateurs CyberheistNews Vol 13 #19 [Watch Your Back] New Fake Chrome Update Error Attack Targets Your Users (lien direct) |
CyberheistNews Vol 13 #19 | May 9th, 2023
[Watch Your Back] New Fake Chrome Update Error Attack Targets Your Users
Compromised websites (legitimate sites that have been successfully compromised to support social engineering) are serving visitors fake Google Chrome update error messages.
"Google Chrome users who use the browser regularly should be wary of a new attack campaign that distributes malware by posing as a Google Chrome update error message," Trend Micro warns. "The attack campaign has been operational since February 2023 and has a large impact area."
The message displayed reads, "UPDATE EXCEPTION. An error occurred in Chrome automatic update. Please install the update package manually later, or wait for the next automatic update." A link is provided at the bottom of the bogus error message that takes the user to what\'s misrepresented as a link that will support a Chrome manual update. In fact the link will download a ZIP file that contains an EXE file. The payload is a cryptojacking Monero miner.
A cryptojacker is bad enough since it will drain power and degrade device performance. This one also carries the potential for compromising sensitive information, particularly credentials, and serving as staging for further attacks.
This campaign may be more effective for its routine, innocent look. There are no spectacular threats, no promises of instant wealth, just a notice about a failed update. Users can become desensitized to the potential risks bogus messages concerning IT issues carry with them.
Informed users are the last line of defense against attacks like these. New school security awareness training can help any organization sustain that line of defense and create a strong security culture.
Blog post with links:https://blog.knowbe4.com/fake-chrome-update-error-messages
A Master Class on IT Security: Roger A. Grimes Teaches You Phishing Mitigation
Phishing attacks have come a long way from the spray-and-pray emails of just a few decades ago. Now they\'re more targeted, more cunning and more dangerous. And this enormous security gap leaves you open to business email compromise, session hijacking, ransomware and more.
Join Roger A. Grimes, KnowBe4\'s Data-Driven Defense Evangelist, |
Ransomware Data Breach Spam Malware Tool Threat Prediction | NotPetya NotPetya APT 28 ChatGPT ChatGPT | ★★ |
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2023-04-11 13:16:54 | Cyberheistnews Vol 13 # 15 [Le nouveau visage de la fraude] FTC fait la lumière sur les escroqueries d'urgence familiale améliorées AI-AI CyberheistNews Vol 13 #15 [The New Face of Fraud] FTC Sheds Light on AI-Enhanced Family Emergency Scams (lien direct) |
CyberheistNews Vol 13 #15 | April 11th, 2023
[The New Face of Fraud] FTC Sheds Light on AI-Enhanced Family Emergency Scams
The Federal Trade Commission is alerting consumers about a next-level, more sophisticated family emergency scam that uses AI which imitates the voice of a "family member in distress."
They started out with: "You get a call. There\'s a panicked voice on the line. It\'s your grandson. He says he\'s in deep trouble - he wrecked the car and landed in jail. But you can help by sending money. You take a deep breath and think. You\'ve heard about grandparent scams. But darn, it sounds just like him. How could it be a scam? Voice cloning, that\'s how."
"Don\'t Trust The Voice"
The FTC explains: "Artificial intelligence is no longer a far-fetched idea out of a sci-fi movie. We\'re living with it, here and now. A scammer could use AI to clone the voice of your loved one. All he needs is a short audio clip of your family member\'s voice - which he could get from content posted online - and a voice-cloning program. When the scammer calls you, he\'ll sound just like your loved one.
"So how can you tell if a family member is in trouble or if it\'s a scammer using a cloned voice? Don\'t trust the voice. Call the person who supposedly contacted you and verify the story. Use a phone number you know is theirs. If you can\'t reach your loved one, try to get in touch with them through another family member or their friends."
Full text of the alert is at the FTC website. Share with friends, family and co-workers:https://blog.knowbe4.com/the-new-face-of-fraud-ftc-sheds-light-on-ai-enhanced-family-emergency-scams
A Master Class on IT Security: Roger A. Grimes Teaches Ransomware Mitigation
Cybercriminals have become thoughtful about ransomware attacks; taking time to maximize your organization\'s potential damage and their payoff. Protecting your network from this growing threat is more important than ever. And nobody knows this more than Roger A. Grimes, Data-Driven Defense Evangelist at KnowBe4.
With 30+ years of experience as a computer security consultant, instructor, and award-winning author, Roger has dedicated his life to making |
Ransomware Data Breach Spam Malware Hack Tool Threat | ChatGPT ChatGPT | ★★ |
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2023-04-01 02:06:20 | L'Italie bloque temporairement le chatppt sur les problèmes de confidentialité [Italy Temporarily Blocks ChatGPT Over Privacy Concerns] (lien direct) | > L'Italie bloque temporairement le logiciel d'intelligence artificielle Chatgpt à la suite d'une violation de données en étudiant une éventuelle violation des règles strictes de protection des données de l'Union européenne.
>Italy is temporarily blocking the artificial intelligence software ChatGPT in the wake of a data breach as it investigates a possible violation of stringent European Union data protection rules. |
Data Breach | ChatGPT ChatGPT | ★★★ |
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2023-03-28 12:59:20 | La violation des données de ChatGpt confirmée comme la société de sécurité met en garde contre l'exploitation des composants vulnérables [ChatGPT Data Breach Confirmed as Security Firm Warns of Vulnerable Component Exploitation] (lien direct) | > OpenAI a confirmé une violation de données de ChatGPT le même jour qu'une entreprise de sécurité a déclaré avoir vu l'utilisation d'un composant affecté par une vulnérabilité activement exploitée.
>OpenAI has confirmed a ChatGPT data breach on the same day a security firm reported seeing the use of a component affected by an actively exploited vulnerability. |
Data Breach | ChatGPT ChatGPT | ★★★ |
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2023-03-23 17:00:20 | Leak des historiques de conversation sur ChatGPT (lien direct) | >En début de semaine, Chat GPT, l’agent conversationnel piloté par IA, a connu un important dysfonctionnement, rendant public à d’autres internautes l'historique de conversations de certains utilisateurs. Un bug rapidement maîtrisé par OpenAI, mais qui pose de nombreuses questions en matière de cybersécurité et de protection des données personnelles… Vladislav Tushkanov, Lead Data Scientist chez […] The post Leak des historiques de conversation sur ChatGPT first appeared on UnderNews. | Data Breach Guideline | ChatGPT ChatGPT | ★★★ |
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2023-03-14 13:00:00 | CyberheistNews Vol 13 #11 [Heads Up] Employees Are Feeding Sensitive Biz Data to ChatGPT, Raising Security Fears (lien direct) |
CyberheistNews Vol 13 #11 | March 14th, 2023
[Heads Up] Employees Are Feeding Sensitive Biz Data to ChatGPT, Raising Security Fears
Robert Lemos at DARKReading just reported on a worrying trend. The title said it all, and the news is that more than 4% of employees have put sensitive corporate data into the large language model, raising concerns that its popularity may result in massive leaks of proprietary information. Yikes.
I'm giving you a short extract of the story and the link to the whole article is below.
"Employees are submitting sensitive business data and privacy-protected information to large language models (LLMs) such as ChatGPT, raising concerns that artificial intelligence (AI) services could be incorporating the data into their models, and that information could be retrieved at a later date if proper data security isn't in place for the service.
"In a recent report, data security service Cyberhaven detected and blocked requests to input data into ChatGPT from 4.2% of the 1.6 million workers at its client companies because of the risk of leaking confidential info, client data, source code, or regulated information to the LLM.
"In one case, an executive cut and pasted the firm's 2023 strategy document into ChatGPT and asked it to create a PowerPoint deck. In another case, a doctor input his patient's name and their medical condition and asked ChatGPT to craft a letter to the patient's insurance company.
"And as more employees use ChatGPT and other AI-based services as productivity tools, the risk will grow, says Howard Ting, CEO of Cyberhaven.
"'There was this big migration of data from on-prem to cloud, and the next big shift is going to be the migration of data into these generative apps," he says. "And how that plays out [remains to be seen] - I think, we're in pregame; we're not even in the first inning.'"
Your employees need to be stepped through new-school security awareness training so that they understand the risks of doing things like this.
Blog post with links:https://blog.knowbe4.com/employees-are-feeding-sensitive-biz-data-to-chatgpt-raising-security-fears
[New PhishER Feature] Immediately Add User-Reported Email Threats to Your M365 Blockl |
Ransomware Data Breach Spam Malware Threat Guideline Medical | ChatGPT ChatGPT | ★★ |
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2023-02-21 14:00:00 | CyberheistNews Vol 13 #08 [Heads Up] Reddit Is the Latest Victim of a Spear Phishing Attack Resulting in a Data Breach (lien direct) |
CyberheistNews Vol 13 #08 | February 21st, 2023
[Heads Up] Reddit Is the Latest Victim of a Spear Phishing Attack Resulting in a Data Breach
There is a lot to learn from Reddit's recent data breach, which was the result of an employee falling for a "sophisticated and highly-targeted" spear phishing attack.
I spend a lot of time talking about phishing attacks and the specifics that closely surround that pivotal action taken by the user once they are duped into believing the phishing email was legitimate.
However, there are additional details about the attack we can analyze to see what kind of access the attacker was able to garner from this attack. But first, here are the basics:
According to Reddit, an attacker set up a website that impersonated the company's intranet gateway, then sent targeted phishing emails to Reddit employees. The site was designed to steal credentials and two-factor authentication tokens.
There are only a few details from the breach, but the notification does mention that the threat actor was able to access "some internal docs, code, as well as some internal dashboards and business systems."
Since the notice does imply that only a single employee fell victim, we have to make a few assumptions about this attack:
The attacker had some knowledge of Reddit's internal workings – The fact that the attacker can spoof an intranet gateway shows they had some familiarity with the gateway's look and feel, and its use by Reddit employees.
The targeting of victims was limited to users with specific desired access – Given the knowledge about the intranet, it's reasonable to believe that the attacker(s) targeted users with specific roles within Reddit. From the use of the term "code," I'm going to assume the target was developers or someone on the product side of Reddit.
The attacker may have been an initial access broker – Despite the access gained that Reddit is making out to be not a big deal, they do also mention that no production systems were accessed. This makes me believe that this attack may have been focused on gaining a foothold within Reddit versus penetrating more sensitive systems and data.
There are also a few takeaways from this attack that you can learn from:
2FA is an important security measure – Despite the fact that the threat actor collected and (I'm guessing) passed the credentials and 2FA details onto the legitimate Intranet gateway-a classic man-in-the |
Data Breach Hack Threat Guideline | ChatGPT | ★★ |
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