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security advisory moderate
security advisory moderate For organizations that run a self-hosted Git platform, it’s no longer just about hosting static code repositories. Today, Git servers are responsible for deployment pipelines, API tokens, SSH keys, package repositories, and the automation scripts that push code directly. Confirm that the upgrade addresses known vulnerabilities but also provides production environments. . That makes them trusted systems within the development environment and attractive targets for attackers looking to move...
Jul 20, 2026
Server Securitydata privacy automation
data privacy automation Every system admin has lived through the same Monday morning ritual. A queue of forty tickets, half of them password resets, permission errors, or disk space warnings that any experienced technician could resolve in under two minutes. The other half require actual judgment. For years, automation promised that software would eventually sort the two apart on its own. That promise is now being tested in production Linux environments. . Early results are reshaping how IT teams think about tier-1...
Jul 17, 2026
Privacydata collection automation
data collection automation You're running a web scraping project to collect pricing data from e-commerce sites. You set up a pool of datacenter proxies, launch your scripts, and within minutes — banned . CAPTCHAs everywhere. Your data pipeline stops before it really begins. . It's a frustrating scenario that plays out daily in ad verification, market research, and multi-account management. The website doesn't know you're doing legitimate research or monitoring. It just sees traffic coming from IP ranges it recognizes as...
Jul 17, 2026
Security Trends security advisory social engineering
security advisory social engineering Business Email Compromise used to be a numbers game — mass-blasted emails, broken English, an obvious "URGENT WIRE TRANSFER" subject line. That era is over. Generative AI has turned BEC into a tailored, low-noise operation that mimics writing style, voice, and even video presence. This piece looks at what's actually changed under the hood, what defenders are testing in response, and why so many organizations are still structurally unprepared for it. . The Infrastructure Problem Nobody Wants to...
Jul 17, 2026
Security Trends cybersecurity Linux documentation
cybersecurity Linux documentation Linux operating systems have gained prominence due to their stability, adaptability, and excellent security options. In the case of developing documentation, designing cybersecurity dashboards, or educational material, visuals are of vital importance when it comes to making things clear. The use of icons allows one to understand the message regarding alerts, authorization, encryption, authentication, or the state of the system just by looking at the visual cue without having to read long...
Jul 17, 2026
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security enhancementkernel securitysecurity threatsLinux Kernel: Rust's Role in Security Enhancement and Challenges Ahead
Linus Torvalds' decision to incorporate the Rust programming language into the Linux kernel has spurred great interest and controversy among the Linux community. Torvalds has considered pushing Rust support forward despite opposition from subsystem maintainers like Christoph Hellwig due to its potential to enhance kernel security. . Rust's memory and concurrency safety features can reduce vulnerabilities like buffer overflows and data races. However, adopting Rust can present unique challenges when combined with multi-language codebases. We security admins must prepare ourselves for both the challenges and benefits associated with Rust integration, as this development could change how the Linux kernel evolves. Let's examine the need for enhanced kernel security, the benefits and challenges of this transition, and the road ahead for Rust integration in the Linux kernel. The Growing Need for Enhanced Security Robust Linux kernel security has never been more vital, especially as more critical systems rely on its use. Written traditionally in C, an attractive programming language that offers both high performance and low-level control, the kernel forms the backbone of numerous critical systems - but C comes with its own set of security risks relating to memory management. Rust offers memory safety guarantees that help eliminate those pesky memory mismanagement bugs that have plagued C programs for years. Integrating Rust into the kernel makes introducing a safer and more secure coding environment possible. Rust's ownership model ensures memory management efficiently without the risk of dangling pointers or double frees - issues that are common sources of vulnerabilities in C programs. Addressing the Challenges of Transition Rust offers many attractive benefits, yet integrating it into the Linux kernel presents challenges. One primary obstacle lies in managing multiple codebases - especially one as extensive and intricate as the Linux kernel. Adding Rust increases thecognitive load on developers and maintainers. Administrators and developers must become proficient with Rust, an increasingly popular but still relatively novel programming language compared to C. Training and upskilling will be key as its effectiveness in mitigating security threats is determined by in-depth knowledge of Rust's paradigms and best practices. For security admins, this transition requires both personal training and embedding Rust knowledge within teams and processes. Preparing for a Multi-Language Kernel Preparing for a multi-language kernel involves investing in toolchains and development environments that support Rust alongside C. The Rust ecosystem is well-established, with tools like cargo (Rust's package manager and build system) and rustic (the Rust compiler) readily available. Adapting existing workflows accordingly should prove to be a straightforward process. Security admins should expect changes in their approach to inspecting, auditing, and managing kernel code. Traditional C static analysis tools must be supplemented (or even replaced) with tools capable of handling Rust code. At the same time, this might slow development and audit processes in the short term as teams adjust. However, the long-term benefits of creating a more secure kernel outweigh the investment. Community and Ecosystem Support Community engagement will be essential to Rust's successful integration into the Linux kernel. The Linux ecosystem encompasses a vast and varied group of contributors spanning individual enthusiasts to large corporate entities. Building consensus and widespread adoption will require communicating its benefits while working collaboratively to solve any potential difficulties. The Rust community is known for its openness and support structure. Numerous resources, including documentation, forums, and tutorials, are readily available to aid developers in mastering Rust. Furthermore, initiatives like Rust for Linux provide a bridge between Rust developers and the Linuxkernel community. Security admins should use these resources to stay informed and engaged. The Road Ahead Rust integration into the Linux kernel could be long and complex, yet its benefits in terms of security and stability could be hugely advantageous. Linus Torvalds, the kernel's architect, has shown an openness toward Rust that may lead to an entirely new era of kernel development. Linux security admins must engage actively to manage this shift, keeping abreast of Rust for Linux project updates, participating in community discussions, and developing expertise within their teams. Though initial hurdles may arise, yielding a safer and more resilient kernel will make this endeavor worthwhile. Our Final Thoughts on Integrating Rust into the Kernel Rust's proposed integration into the Linux kernel represents a decisive step toward improving the security and reliability of one of the world's most crucial pieces of software. While challenges will arise, this step could significantly decrease vulnerabilities while increasing the kernel's robustness overall. For us Linux security admins, accepting this change means upskilling our skills, adopting new tools, and engaging with our community. This journey may prove taxing, but its destination - a more secure kernel - certainly makes it worthwhile! What are your thoughts on Rust integration in the kernel? Let us know @lnxsec. . Rust is increasingly influential in enhancing Linux kernel security, offering memory safety and reducing vulnerabilities while aiming for robust kernel operations. Linux Kernel Security, Rust Programming, Security Threats, Multi-Language Development, Codebase Management. . MaK Ulac
Feb 20, 2025
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Security Projects
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security threatslinuxai securityBlackHat USA 2024 Insights: AI, Microsoft Risks, and Core Dump Strategies
BlackHat USA , an annual cybersecurity conference with global attendance since 1997, is an essential forum for sharing cutting-edge security research, trends, and networking among IT and cybersecurity professionals. From its humble origins in Las Vegas in 1997 until today, this international event draws attendees from all around the globe. Security vulnerabilities are exposed, defensive strategies are articulated, and an overall pulse is taken on the digital security industry. . The 2024 BlackHat USA Conference once again provided vital topics and discussions. Focusing heavily on high-impact areas affecting Linux administrators and infosec professionals, findings presented at this year's event shed light on emerging threats and innovative countermeasures. Let's examine some of the highlights and key takeaways from BlackHat 2024 that directly impact our daily lives as Linux admins. Key Takeaways for Linux & InfoSec Circles From all the talks and shared research findings presented at BlackHat 2024, several key takeaways stood out for Linux administrators and infosec professionals: AI and Security At Black Hat USA 2024, Artificial Intelligence (AI) was a central theme, reflecting its growing significance within cybersecurity. Experts at the event discussed AI as an asset to boost security measures and an incursion into new risk categories. NVIDIA's AI Red Team recently identified sophisticated threats to large language models (LLMs), including indirect prompt injections and vulnerable plugins, that require strong application security measures to address. This highlights the significance of investing in robust application security as an essential means to mitigate such risks. On the positive side, experts saw GenAI and LLMs as transformative tools capable of synthesizing vast amounts of technical data and threat intelligence into more accessible formats for human analysis. Concerns were expressed over distinguishing practical AI applications from gimmicks. Skepticism regarding somecompanies' claims of AI innovation was voiced, as was caution regarding integration without fully comprehending its capabilities and implications in product environments. The conference revealed a dire outlook on the dark side of AI in cybersecurity, where AI-driven attacks aren't just possible - they're rapidly becoming a reality. According to HiddenLayer's AI Threat Landscape report, as businesses become more dependent upon Artificial Intelligence systems, threat actors have developed methods of exploiting it through data poisoning, model theft, and model evasion attacks, with more hostile exploits likely as enterprise adoption increases. It is, therefore, imperative for companies to remain agile and update their security strategies to combat AI-targeted threats effectively. Microsoft Outages and Patches Black Hat USA 2024 showcased critical discussions surrounding Microsoft vulnerabilities and security patches, revealing growing anxiety among cybersecurity professionals regarding Microsoft's software ecosystem. At this event, held against a backdrop of global geopolitical unrest and increasing reliance on Artificial Intelligence (AI), two global outages from Microsoft/CrowdStrike services were brought to light: Azure outages and those for Microsoft/CrowdStrike products. These incidents underscored the potential security ramifications of vulnerabilities within Microsoft's framework, drawing attention to its response approach. Particularly noteworthy was th e discovery of an advanced attack technique at this conference where threat actors could use zero-day vulnerabilities to perform downgrade attacks on fully updated Windows systems. Attackers could leverage this technique to reintroduce vulnerabilities patched using standard security tools, expose critical OS components, and exploit outdated DLLs and the NT Kernel without detection by standard tools. Black Hat 2024 also focused on Microsoft's response to these challenges, unveiling advisories on two unpatched zero-days, CVE-2024-38202 and CVE-2024-21302 , and offering mitigation advice pending more definitive patches. This move formed part of a broader critique against Microsoft's security posture, including ongoing concerns that the company tends to patch vulnerabilities identified by friendly researchers rather than actively redesigning programs to prevent new attacks. Critiques have arisen amid discussions of Microsoft's security responsibilities amid numerous vulnerabilities involving high-profile systems and data. Microsoft has pledged to tie security performance reviews directly with salary reviews to address vulnerabilities in its security framework in response to an ever-evolving threat landscape. Crash Reports and Core Dumps One of the more surprising but critical revelations at BlackHat USA 2024 was that log files, crash reports, and core dumps provide attackers with tools for creating denial-of-service attacks or more sophisticated system exploits. Likewise, security researchers use crash reports to detect malware payloads that often go unidentified by signature detection. Core dumps are files produced when programs crash and contain an exact snapshot of their state - often including sensitive information like passwords or encryption keys—making these reports a wake-up call to both Linux admins and developers to treat them with increased care. Detailed Insights from the Crash Report Analysis BlackHat presenters shed new light on the unintentional role of crash reports and core dumps in aiding attackers, forcing security professionals to recognize a need for a two-pronged approach: safeguarding them while using them to enhance security measures proactively. Attackers See Core Dumps As A Gold Mine Core dumps and error logs offer malicious entities an invaluable roadmap into a program's fault lines, providing an insight into its inner workings - how memory, user credentials, or transactions are managed or processed by it - providing data that could aid exploit development or identify weak points within an activesystem. Proactive Measures With Core Dumps However, from a defensive standpoint, these resources can prove invaluable. By carefully examining core dumps, security professionals and Linux system administrators can preemptively detect vulnerabilities within their systems' codebases - often by employing tools like GNU Debugger (GDB) , which enables examination of core dump contents to determine what caused a crash and identify root cause analysis solutions. Linux systems, being open-source platforms, offer numerous configuration options for managing core dumps. System administrators can configure whether and how often core dumps should be generated and their size and handling policies via kernel parameters like /proc/sys/kernel/core_pattern or user configuration options such as the ulimit command. Furthermore, Linux's robust logging systems can be easily customized depending on their environment's sensitivity or security needs. Configuring core dump handling on Linux goes beyond diagnostics. The task involves setting resource limits using ulimit , specifying core file size using core_file_size , and configuring kernel.core_uses_pid accordingly. For instance, one might store core dumps securely yet centrally so they are accessible for analysis by authorized personnel without being vulnerable to potential intruders. Furthermore, advanced platforms like Red Hat's OpenShift contain mechanisms for collecting core dumps within containers. This feature can be particularly helpful in diagnosing issues in microservice architecture where traditional core dump analysis methods might not apply directly. Why Are Future Proofing & Security Hygiene of Utmost Importance? BlackHat USA 2024 revealed that as systems become more complex, risks increase. Linux administrators and information security professionals must regularly reevaluate their security postures, incorporating lessons from events like core dump analysis. As core dumps can be dangerous tools, it is critical to implement stringent access controls , encrypt sensitive data at rest, and continuously monitor for unusual behaviors that might signal the need for deeper investigation of system stability and security. Linux community members should take advantage of the robust and granular control available to enhance system security reactively (post-incident analysis) and proactively by including core dump analysis as part of regular security practices. Our Final Thoughts on BlackHat USA 2024 BlackHat USA 2024 lived up to its longstanding legacy by providing valuable knowledge and trends resonating with Linux administrators and the larger infosec community. Its emphasis on emerging technological applications and ongoing efforts against vulnerabilities showcased cybersecurity's dynamic, ever-evolving nature. With these insights gained at BlackHat 2024, Linux professionals are better prepared than ever to navigate this ever-evolving security landscape, maintaining the integrity and trustworthiness of systems under their purview. . The 2024 BlackHat USA Conference provided insights on AI security, Microsoft risks, and core dump dangers for Linux professionals.. blackhat, annual, cybersecurity, conference, global, attendance, since, essential. . Brittany Day
Aug 12, 2024
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Organizations/Events
83
security advisorymalwaresecurity threatsKinsing Malware Threat: Impact on Linux Security and Admin Strategies
The Kinsing hacker group, or H2Miner, has been orchestrating illicit cryptocurrency mining campaigns since 2019 and poses a persistent security threat. The group continuously evolves its toolkit by integrating newly disclosed vulnerabilities to expand its botnet. . The Kinsing malware has targeted various operating systems, focusing significantly on Linux servers. The group leverages exploits in popular open-source applications such as Apache ActiveMQ, Apache Log4j , and Oracle WebLogic Server, among others, to breach vulnerable systems. By disabling security services and removing existing miners, Kinsing enrolls infected systems in its botnet for crypto-mining activities. Let's examine the implications of this threat for Linux admins so you are better equipped to secure your systems against it. Analyzing This Threat: What Are the Security Implications for Linux Admins? The Kinsing hacker group's ability to adapt and exploit vulnerabilities to expand their botnet raises concerns for Linux admins and organizations. With most targeted applications being open-source, the impact on runtime applications, databases, and cloud infrastructure cannot be underestimated. The fact that 91% of the targeted applications are open-source should trigger heightened security within organizations using Linux and open-source software . Security practitioners must assess and proactively address vulnerabilities in these systems. The persistence and agility of the Kinsing group is particularly noteworthy. The group quickly integrates newly disclosed vulnerabilities into its arsenal, allowing them to stay one step ahead of security measures. This highlights the need for constant vigilance and proactive measures to prevent threats like Kinsing. Linux admins and infosec professionals should continuously monitor and patch vulnerabilities in their systems to mitigate the risk of exploitation. What Are the Longterm Consequences of Kinsing Malware? The long-term consequences of Kinsing's activities should concerninternet security enthusiasts and sysadmins. The group's ability to disable security tools, terminate security components, and deploy rootkits raises questions about the effectiveness of current defense mechanisms. This discovery highlights the broader trend of botnet malware families broadening their reach and exploiting poorly secured servers. This trend, exemplified by the P2PInfect malware, indicates a need for stronger security measures to protect against such threats. For practical advice on protecting against Linux malware, explore this LinuxSecurity must-read article. Our Final Thoughts on the Kinsing Hacker Group's Malicious Activities The Kinsing hacker group's continuous evolution and exploitation of vulnerabilities to expand their botnet pose a significant threat to organizations, especially those utilizing Linux and open-source software. Linux admins must remain vigilant, patch vulnerabilities promptly, and proactively harden their systems. The international nature of this threat underscores the need for technical audiences worldwide to understand the techniques employed by Kinsing. Addressing these activities' implications and long-term consequences is essential for security practitioners to safeguard their organizations' systems and data. . The Mariposa virus represents a major risk for Windows systems, underscoring the need for robust safeguards and preventative strategies.. Kinsing Malware,Crypto Botnet,Linux Threats,Open Source Security,System Hardening. . Dave Wreski
Jun 03, 2024
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Hacks/Cracks
83
security threatsransomwaresecurity implicationsAkira Ransomware Targets Linux Servers: Security Implications for Admins
The Akira ransomware group has extorted approximately $42 million from over 250 victims since January 1, 2024. The group initially focused on Windows systems but later shifted its attention to Linux servers, mainly targeting VMware ESXi virtual machines. The ransomware leverages different methods for initial access to target networks, such as exploiting known flaws in Cisco appliances, spear phishing, and abusing VPN services lacking multi-factor authentication protections. It also utilizes various tools for setting up persistence, privilege escalation, and lateral movement within networks. . What Are the Implications of This Threat for Linux Admins & Users? The ransomware's sophisticated attack techniques include exploiting known vulnerabilities in Cisco appliances and employing advanced hacking tools like Mimikatz and LaZagne for credential scraping and privilege escalation. The evolution of the Akira ransomware group to target Linux servers, a domain traditionally considered more secure , raises thought-provoking questions about the effectiveness of current security measures for Linux systems. This evolution reflects a trend where ransomware groups adapt and innovate to overcome evolving defensive strategies. Furthermore, this discovery presents a critical implication for security practitioners, emphasizing the need for continual vigilance and proactive measures to secure both Windows and Linux environments. For Linux admins and infosec professionals, this underscores the necessity of staying abreast of vulnerabilities and security best practices to protect against such sophisticated threats. Using a "Bring Your Own Vulnerable Driver (BYOVD) attack" to evade detection highlights the need for thorough and proactive vulnerability management to mitigate the risk of such attacks. The relationship between the Akira ransomware group and the defunct Conti ransomware gang should be noted. This raises concerns about potential collaborations or knowledge sharing between threat actor groups.It points to the interconnected nature of the cyber threat landscape and the necessity of a collective, coordinated response from the cybersecurity community to combat such threats effectively. Additionally, the mention of the struggles of the LockBit ransomware group post-law enforcement takedown highlights the potential ripple effects of successful disruption operations against ransomware groups, prompting users and admins to consider the long-term impacts of such interventions on the threat landscape. Our Final Thoughts on This Linux Ransomware Threat As security practitioners, this threat is a stark reminder of ransomware's evolving and adaptive nature and the critical importance of a proactive, multi-layered security approach to defend against it. The evolving tactics of the Akira ransomware group and its targeting of Linux servers emphasize the need for continuous learning, adaptive defenses, and a comprehensive security strategy. This article presents critical insights that Linux admins, infosec professionals, and sysadmins must carefully consider to safeguard their organizations' systems and data against evolving ransomware threats. . The rise of Akira ransomware targeting Linux systems poses serious challenges for cybersecurity, signaling a shift that affects sectors reliant on Linux for critical infrastructure. Akira Ransomware, Linux Security, Credential Exploits, Proactive Defense. . Dave Wreski
Apr 19, 2024
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Hacks/Cracks
215
operating systemsecurity threatsprivacyBoost Your Desktop Security with Linux for Enhanced Protection
With the threat of security breaches continually on the rise, it's time to take your operating system seriously -- and Linux is your best friend in this never-ending battle. . I've been espousing this hot take on Linux for a very long time. It seems, however, that the phrase "there's no time like the present" is more apropos today than it has ever been. Threats to security and privacy seem to never abate. They are constant and they grow more widespread and effective with every passing attack. Bad actors are savvy and know the best ways to hit you. One of the reasons for this threat is because, most likely, you use Windows as your primary desktop and laptop operating system. Before you start to get upset, this isn't another one of those articles that trashes Windows as a launching point. I'm not going to tell you how awful Microsoft Windows is . I'm not even going to mention how easy it is for ne'er-do-wells to use your operating system against you for the purpose of either stealing or ransoming your data. . Transitioning to Linux enhances your desktop's security against sophisticated cyber attacks, ensuring transparency and swift vulnerability fixes through open-source principles. Desktop Security, Linux Protection, Privacy Enhancement, Security Breaches. . Brittany Day
Jul 11, 2023
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Desktop Security
209
security threatsmalicious codeopen source riskRisk of AI Hallucinations in Open Source Security Threatens Enterprises
Researchers at an Israeli security firm on Tuesday revealed how hackers could turn a generative AI’s “hallucinations” into a nightmare for an organization’s software supply chain. . In a blog post on the Vulcan Cyber website, researchers Bar Lanyado, Ortel Keizman, and Yair Divinsky illustrated how one could exploit false information generated by ChatGPT about open-source software packages to deliver malicious code into a development environment. They explained that they’ve seen ChatGPT generate URLs, references, and even code libraries and functions that do not actually exist. If ChatGPT is fabricating code libraries or packages, attackers could use these hallucinations to spread malicious packages without using suspicious and already detectable techniques like typosquatting or masquerading, they noted. . Analysts revealed the potential for AI-generated delusions to take advantage of vulnerabilities in public software and threaten corporate safety.. Enterprise Security, AI Exploitation, Software Supply Chain, Malicious Code, Open Source Risks. . Brittany Day
Jun 13, 2023
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Security Trends
83
malwarecybercrimesecurity threatsLockBit Ransomware Threats: Rising Global Impact and Cybercrime Trends
The notorious Russian-speaking cybercriminals grew successful by keeping a low profile. But now they have a target on their backs. . High-profile ransomware attacks have become a fact of life in recent years, and it’s not unusual to hear about major monthly attacks perpetrated by Russia-based gangs and their affiliates. But since late 2019, one group has been steadily making a name for itself on a multi-year rampage that has impacted hundreds of organizations around the world. The LockBit ransomware gang may not be the most wildly unhinged of these criminal groups, but its callous persistence, effectiveness, and professionalism make it sinister in its own way. One of the most prolific ransomware groups ever, the LockBit collective has attempted to maintain a low profile in spite of its volume of attacks. But as it has grown, the group has gotten more aggressive and perhaps careless. Earlier this month, the LockBit malware was notably used in an attack on the United Kingdom’s Royal Mail that hobbled operations. After other recent visible attacks, like one on a Canadian children’s hospital, all eyes are now on LockBit. . The ascent of the LockBit ransomware syndicate showcases its aggressive tactics and their significant impact on international cybersecurity dynamics.. LockBit Ransomware,Cybercrime Threats,Malware Attacks,Ransomware Trends. . LinuxSecurity.com Team
Jan 26, 2023
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Hacks/Cracks
209
security threatsransomwareIT infrastructureRansomware Threats Surge on Linux: 75% Increase in Attacks
There's been a big rise in ransomware attacks targeting Linux as cyber criminals look to expand their options and exploit an operating system that is often overlooked when businesses think about security. . According to analysis by cybersecurity researchers at Trend Micro , Linux servers are "increasingly coming under fire" from ransomware attacks , with detections up by 75% over the course of the last year as cyber criminals look to expand their attacks beyond Windows operating systems. Linux powers important enterprise IT infrastructure including servers, which makes it an attractive target for ransomware gangs – particularly when a perceived lack of threat to Linux systems compared with Windows means that cybersecurity teams might choose to focus on defending Windows networks against cybercrime. . Incidents of ransomware on Linux systems have escalated by 75%, highlighting vulnerabilities as malicious actors refine their targeting strategies.. Ransomware Attacks, Linux Servers, Cybersecurity Threats, IT Infrastructure, Attack Trends. . Brittany Day
Sep 02, 2022
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Security Trends
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