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| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
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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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2023-05-09 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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2023-03-14 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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