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The prolific threat actor known as  Scattered Spider  has been observed impersonating newly hired employees in targeted firms as a ploy to blend into normal on-hire processes and takeover accounts and breach organizations across the world. Microsoft, which disclosed the activities of the financially motivated hacking crew, described the adversary as "one of the most dangerous financial criminal groups," calling out its operational fluidity and its ability to incorporate SMS phishing, SIM swapping, and help desk fraud into its attack model. "Octo Tempest is a financially motivated collective of native English-speaking threat actors known for launching wide-ranging campaigns that prominently feature adversary-in-the-middle ( AiTM ) techniques, social engineering, and SIM swapping capabilities," the company  said . It's worth noting that the activity represented by  Octo Tempest  is tracked by other cybersecurity companies under various monikers, including 0kta...

Cloudflare on Thursday said it mitigated thousands of hyper-volumetric HTTP distributed denial-of-service (DDoS) attacks that exploited a recently disclosed flaw called  HTTP/2 Rapid Reset , 89 of which exceeded 100 million requests per second (RPS). "The campaign contributed to an overall increase of 65% in HTTP DDoS attack traffic in Q3 compared to the previous quarter ," the web infrastructure and security company said in a report shared with The Hacker News. "Similarly,  L3/4 DDoS attacks  also increased by 14%." The total number of HTTP DDoS attack requests in the quarter surged to 8.9 trillion, up from 5.4 trillion in Q2 2023 and 4.7 trillion in Q1 2023. The number of attack requests in Q4 2022 stood at 6.5 trillion. HTTP/2 Rapid Reset (CVE-2023-44487) came to light earlier this month following an industry-wide coordinated disclosure that delved into DDoS attacks orchestrated by an unknown actor by leveraging the flaw to target various providers such as ...

While cyberattacks on websites receive much attention, there are often unaddressed risks that can lead to businesses facing lawsuits and privacy violations even in the absence of hacking incidents. A new case study highlights one of these more common cases.  Download the full case study here . It's a scenario that could have affected any type of company, from healthcare to finance, e-commerce to insurance, or any other industry. Recently, Reflectiz, an advanced website security solution provider, released a  case study  focusing on a forgotten and misconfigured pixel that had been associated with a leading global healthcare provider. This overlooked piece of code surreptitiously gathered private data without user consent, potentially exposing the company to substantial fines and damage to its reputation. Nowadays, it has become common practice for companies to embed such pixels into their websites. For instance, the TikTok Pixel is a typical example, added to web...

SaaS Adoption is Skyrocketing, Resilience Hasn't Kept Pace SaaS platforms have revolutionized how businesses operate. They simplify collaboration, accelerate deployment, and reduce the overhead of managing infrastructure. But with their rise comes a subtle, dangerous assumption: that the convenience of SaaS extends to resilience. It doesn't. These platforms weren't built with full-scale data protection in mind . Most follow a shared responsibility model — wherein the provider ensures uptime and application security, but the data inside is your responsibility. In a world of hybrid architectures, global teams, and relentless cyber threats, that responsibility is harder than ever to manage. Modern organizations are being stretched across: Hybrid and multi-cloud environments with decentralized data sprawl Complex integration layers between IaaS, SaaS, and legacy systems Expanding regulatory pressure with steeper penalties for noncompliance Escalating ransomware threats and inside...

The Iranian threat actor known as  Tortoiseshell  has been attributed to a new wave of watering hole attacks that are designed to deploy a malware dubbed IMAPLoader. "IMAPLoader is a .NET malware that has the ability to fingerprint victim systems using native Windows utilities and acts as a downloader for further payloads," the PwC Threat Intelligence team  said  in a Wednesday analysis. "It uses email as a [command-and-control] channel and is able to execute payloads extracted from email attachments and is executed via new service deployments." Active since at least 2018, Tortoiseshell has a history of using strategic website compromises as a ploy to facilitate the distribution of malware. Earlier this May, ClearSky  linked the group  to the breach of eight websites associated with shipping, logistics, and financial services companies in Israel. The threat actor is  aligned  with the Islamic Revolutionary Guard Corps ( IRGC ) and is also tr...

Users of  Mirth Connect , an open-source data integration platform from NextGen HealthCare, are being urged to update to the latest version following the discovery of an unauthenticated remote code execution vulnerability. Tracked as  CVE-2023-43208 , the vulnerability has been addressed in  version 4.4.1  released on October 6, 2023. "This is an easily exploitable, unauthenticated remote code execution vulnerability," Horizon3.ai's Naveen Sunkavally  said  in a Wednesday report. "Attackers would most likely exploit this vulnerability for initial access or to compromise sensitive healthcare data." Called the "Swiss Army knife of healthcare integration," Mirth Connect is a cross-platform interface engine used in the healthcare industry to communicate and exchange data between disparate systems in a  standardized manner . Additional technical details about the flaw have been withheld in light of the fact that Mirth Connect versions going as far bac...

A relatively new threat actor known as  YoroTrooper  is likely made up of operators originating from Kazakhstan. The assessment, which comes from Cisco Talos, is based on their fluency in Kazakh and Russian, use of Tenge to pay for operating infrastructure, and very limited targeting of Kazakhstani entities, barring the government's Anti-Corruption Agency. "YoroTrooper attempts to obfuscate the origin of their operations, employing various tactics to make its malicious activity appear to emanate from Azerbaijan, such as using VPN exit nodes local to that region," security researchers Asheer Malhotra and Vitor Ventura  said . First documented by the cybersecurity company in March 2023, the adversary is  known to be active  since at least June 2022, singling out various state-owned entities in the Commonwealth of Independent States (CIS) countries. Slovak cybersecurity firm ESET is tracking the activity under the name  SturgeonPhisher . YoroTrooper's at...

The threat actor known as  Winter Vivern  has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023, to harvest email messages from victims' accounts. "Winter Vivern has stepped up its operations by using a zero-day vulnerability in Roundcube," ESET security researcher Matthieu Faou  said  in a new report published today. Previously, it was using known vulnerabilities in Roundcube and Zimbra, for which proofs-of-concept are available online." Winter Vivern, also known as TA473 and UAC-0114, is an  adversarial collective  whose objectives align with that of Belarus and Russia. Over the past few months, it has been attributed to attacks against Ukraine and Poland, as well as government entities across Europe and India. The group is also assessed to have exploited another flaw Roundcube as recently as August and September (CVE-2020-35730), making it the  second nation-state group after APT28  to target the op...

Critical security flaws have been disclosed in the Open Authorization (OAuth) implementation of popular online services such as Grammarly, Vidio, and Bukalapak, building upon previous shortcomings uncovered in  Booking[.]com and Expo . The weaknesses, now addressed by the respective companies following responsible disclosure between February and April 2023, could have allowed malicious actors to obtain access tokens and potentially hijack user accounts. OAuth is a  standard  that's commonly used as a mechanism for cross-application access, granting websites or applications access to their information on other websites, such as Facebook, but without giving them the passwords. "When OAuth is used to provide service authentication, any security breach in it can lead to identity theft, financial fraud, and access to various personal information including credit card numbers, private messages, health records, and more, depending on the specific service being attacked," Sa...

In today's digital landscape, around  60%  of corporate data now resides in the cloud, with Amazon S3 standing as the backbone of data storage for many major corporations.  Despite S3 being a secure service from a reputable provider, its pivotal role in handling vast amounts of sensitive data (customer personal information, financial data, intellectual property, etc.), provides a juicy target for threat actors. It remains susceptible to ransomware attacks which are often initiated using leaked access keys that have accidentally been exposed by human error and have access to the organization's buckets. To effectively combat these evolving threats, it is vital to ensure that your organization has visibility into your S3 environment, that you are aware of how threat actors can compromise data for ransom and most importantly, best practices for minimizing the risk of cyber criminals successfully executing such an attack. Ensuring Visibility: CloudTrail and Server Access L...

VMware has released security updates to address a critical flaw in the vCenter Server that could result in remote code execution on affected systems. The issue, tracked as  CVE-2023-34048  (CVSS score: 9.8), has been described as an out-of-bounds write vulnerability in the implementation of the  DCE/RPC protocol . "A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution," VMware  said  in an advisory published today. Credited with discovering and reporting the flaw is Grigory Dorodnov of Trend Micro Zero Day Initiative. VMware said that there are no workarounds to mitigate the shortcoming and that security updates have been made available in the following versions of the software - VMware vCenter Server 8.0 (8.0U1d or 8.0U2) VMware vCenter Server 7.0 (7.0U3o) VMware Cloud Foundation 5.x and 4.x Given the criticality of the flaw and the lack of temporary mitigations, the v...