Network Security
system security Linux network
system security Linux network The romanticized image of the digital nomad – a laptop on a sun-drenched balcony – rarely accounts for the actual friction of maintaining a professional development environment on the move. . The friction is amplified with Linux. We are looking for a setup that respects our kernel configurations, handles volatile network handovers, and maintains a strict security posture without the hand-holding of a consumer-grade OS – so, put simply, more than just a laptop and a sunny deck. The hardware is...
May 26, 2026
Server Securityopen-source Linux administration
open-source Linux administration Cron has existed in Unix and Linux environments for decades, handling backups, cleanup scripts, patching jobs, log rotation, monitoring tasks, and other maintenance work that administrators do not want to run manually. Most Linux servers rely on it constantly, which is exactly why attackers continue abusing it for persistence after a system has already been compromised. . Persistence through cron is not complicated. Attackers do not need a rootkit or advanced malware framework to maintain...
May 25, 2026
Vendors/Productssecurity breach linux
security breach linux A major internal repository breach at GitHub has exposed a critical and overlooked blind spot in Linux supply chain security. Kernel exploits, exposed SSH services, weak firewall rules, and vulnerable daemons dominated the Linux threat model for years, and in many environments, they still matter. But recent supply-chain incidents involving GitHub ecosystems, npm packages, and malicious developer tooling point somewhere else entirely: the developer workstation. . The breach matters because...
May 21, 2026
Security Trends access control multi-tenant
access control multi-tenant Linux administrators often face an ugly choice in the cloud: prioritize convenience and cost-efficiency by sharing infrastructure, or sacrifice those benefits for the sake of total isolation. Most modern Linux workloads don't live on their own private servers anymore. They live in shared environments like Kubernetes clusters, where multiple teams and services run side-by-side. It sounds efficient, and it usually is. . But cloud isolation isn't as ironclad as it looks on the diagram. If you...
May 21, 2026
Vendors/Productsincident response cloud security
incident response cloud security Managed Extended Detection and Response (MXDR) has become one of the most sought-after security services in the enterprise market — and with good reason. It promises the holy grail: broad visibility across endpoints, network, cloud, email, and identity, combined with the 24/7 human expertise most organizations simply cannot build in-house. . However, the rapid growth of the market has produced a wide range of providers whose capabilities vary considerably beneath the surface. Choosing the...
May 19, 2026
Refine news
X Clear Filters
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
What got you started with Linux?
Loading...
Explore Latest Linux Security news
We found 21 articles for you...
83
web securitymalware preventionsite integrityWordPress Security: Protecting Against Backdoors and Attacks
Wordfence security researchers recently shed light on an infamous supply chain attack that may have affected as many as 36,000 WordPress websites. Five widely used plugins were infected with malware , which opened a backdoor that allowed attackers to manipulate SEO elements and gain administrative access. This shocking discovery is a necessary warning to developers, administrators, and website owners about the dangers lurking within software supply chains. . Let's examine this discovery and the broader trend it highlights. We'll then provide practical mitigation strategies for securing WordPress against this backdoor and similar threats. Understanding This Recent WordPress Backdoor & Its Impact This attack, announced by WordFence on Monday, June 24, 2024, subtly added backdoors to plugins at WordPress.org. Social Warfare, BLAZE Retail, Wrapper Link Elementor, and Contact Form 7 Multi Step Addon are among the plugins affected. This malicious act is not a benign event. It indicates the introduction of unauthorized administrative accounts, SEO spamming, and power plays by unknown actors. This attack is a wake-up call for developers and admins who have worked hard to build and maintain plugins and could see their reputations tarnished in an attack. Victims face the risk of data breaches or SEO penalties and will be left scrambling to restore the integrity of their websites. This threat reinforces that no one in the WordPress community is immune from such sophisticated supply-chain attacks. The Broader Trend: Rising Supply-Chain Attacks Supply-chain attacks are among today's most dangerous cyber threats because of their insidious nature. These attacks are not direct but instead target trusted software repositories. They can have a more significant impact on users who install or update the software. The WordPress ecosystem narrowly avoided disaster this year when a backdoor in the XZ Utils library code was discovered moments before its widespread release. Anotherrecent supply-chain attack was reported by security companies Checkmarx and Datadog. To infect devices, the malicious actors behind this campaign distributed Trojanized versions of open-source software through NPM and GitHub. The package @0xengine/xmlrpc masqueraded as an official JavaScript implementation, but it contained a backdoor that activated malicious codes, allowing attackers to steal credentials and sensitive information, including SSH keys and AWS access keys. This malware campaign resulted in 390,000 WordPress credentials being stolen. It has continued to persist due to its subtlety. Multiple factors can be blamed for this escalation of supply-chain attacks. Interconnectivity between software components and open-source libraries makes it possible to exploit many touchpoints. The sheer volume of code also makes it impossible to monitor every line, especially since stealthy malware can lay dormant for long periods and escape detection. Infiltration opportunities increase as software development tools and techniques become more complex. How Can I Fortify WordPress Against These Threats? Protecting a WordPress install requires a multifaceted approach that includes preventive measures and rapid response protocols. Here are a few actionable steps for improving WordPress security : Install Cautiously: Before installing any plugin or theme, it is essential to conduct a thorough review. Check out the developer's track record, update history, and feedback from other users. Regular Audits: Conduct regular security audits on your WordPress site. Scan for unauthorized file changes, rogue accounts, and suspicious log activity. Reduce the number of plugins to those you need: The more plugins you have, the greater your attack surface. Update protocols: Stay current with the latest updates, but be cautious. Verify updates from multiple sources and test new versions in staging environments. Keep regular site backups: Maintaining regular site backupswill allow you to restore your website to a secure state in case of a breach. Implement Security Plugins and a Firewall: Use security plugins such as firewalls and vulnerability scanners. WPScan is a valuable tool for Linux admins who want to protect WordPress sites against malware and other persistent threats. WPScan scans for malware and other risks to WordPress sites, allowing admins to find issues like outdated plugins, weak passwords, and vulnerable themes that need to be fixed. The installation is simple and quick, and the vulnerability database is updated regularly to keep administrators safe from new threats. User Permission Control: To minimize internal exploits, limit administrative privileges to trusted individuals, and implement role-based access controls. Developer Vigilance: Developers should monitor their environments for irregularities and use robust authentication mechanisms, like two-factor authentication, to prevent their accounts from being the weakest link. Our Final Thoughts on Securing WordPress Sites Against Backdoors & Hacks WordPress site owners are more responsible than ever for their online presence. The recent supply chain backdoor intrusion into WordPress plugins was not an isolated incident but part of a worrying trend in cyber threats. The discovery of this backdoor has highlighted the need to tighten security measures in general. WordPress users can better protect their sites from high-caliber hacks by educating the community and implementing robust cybersecurity measures. This will help ensure their sites remain secure and accessible amidst heightened cyber risk. . Given recent revelations about WordPress backdoor breaches, it's crucial to explore their impacts and find effective ways to bolster your website’s security against such threats. WordPress Security,Supply Chain Attack,Plugin Security,Malware Protection. . Brittany Day
Dec 17, 2024
•
Hacks/Cracks
83
cyber threatsbackup strategiesransomwareDouble-Extortion Ransomware Insights and Defensive Strategies for Linux
As cybersecurity evolves, so too has its threats. Symantec recently identified an emerging threat aimed at Linux systems. This new type of ransomware (called double extortion by its creators) encrypts files and exfiltrates and holds onto data, demanding ransom payments in return. Such sophisticated cybercriminal tactics highlight their audacity while attacking many enterprise and cloud environments - an audacious move by cybercriminals targeting such essential infrastructure as server farms. . Here is more insight into this ransomware's mechanisms, its danger, and exploited vulnerabilities, along with actionable insights for Linux administrators looking to protect themselves and fortify defenses against attack. How Does This Ransomware Work & What Makes It So Dangerous? This ransomware variant , believed to have been created by an English- and Spanish-speaking actor, leaves behind a ransom note (/root/README.txt and /user/[username]/README.txt) outlining the steps victims must follow. Furthermore, its relentless behavior involves shutting down processes like PostgreSQL, MongoDB, MySQL, Apache2, Nginx, and PHP-FPM to stop recovery or interference during the attack. It hijacks /etc/motd files to display warning messages, creating a sense of urgency and fear among victims. When files have been encrypted, a ransom note in English and Spanish states that significant volumes of sensitive data have been stolen and encrypted. The perpetrators demand contact via Session, an anonymous messaging app, to negotiate ransom payment in return for decryption keys, emphasizing their preference for secure communication channels. This ransomware poses an extraordinary danger due to its Double-Extortion technique. Not only are files encrypted, making them inaccessible, but exfiltrated data also provides attackers with additional leverage against businesses. Companies could experience operational capacity loss due to this ransomware attack, and their confidentiality and integrity could be breached, potentiallyleading to regulatory penalties and irreparable reputation damage. Who Is At Risk? This attack is non-discriminatory in its approach. If left vulnerable, any Linux system—found across much of the Internet, cloud infrastructures, and enterprise backends—could become a ransomware attack victim. Organizations with significant data assets, operational reliance on affected databases or services, and inadequate security postures are particularly at risk from this malware threat. Fortifying Defenses: A Guide for Administrators In response to this ever-present danger, Linux administrators must employ multiple layers of defenses to protect their systems and data. Here is some practical and specific advice for defending against this ransomware: Recurring Backups: Create encrypted off-site backups of all critical information to protect against possible attacks. Regular encrypted off-site backups could act as your safety net in case of an attack. Process and Service Monitoring: Establish monitoring to detect unanticipated stops or modifications of critical services (e.g., PostgreSQL and MongoDB) to detect and address malicious activities promptly. Apply Patches & Updates: Apply regular security updates and patches that could protect against ransomware threats. Access Controls: Employ stringent access controls and permission policies to restrict administrative privileges to only essential processes or users. Intrusion Detection Systems: Use file integrity monitoring and intrusion detection systems (IDS) to detect changes or suspicious activities on your systems. Educate and Train: Raise awareness within your operational teams about cyber threats and safe practices. Phishing often serves as an entryway to malware infections. Network Segmentation: Divide your network into segments to prevent intrusions from spreading and provide enhanced protection for sensitive areas through improved controls. Our Final Thoughts on This Ransomware The recentrise of double-extortion ransomware targeting Linux systems is a stark reminder of cyber adversaries' increasing sophistication and audacity. It underscores the necessity of adopting a proactive security strategy comprised of technological solutions and a culture of awareness and preparedness. Organizations can significantly lower their risks by understanding the nature of ransomware attacks, recognizing signs of an attack, and taking recommended security measures to secure systems and data against cyber threats. Vigilance, preparedness, and resilience are key to protecting system and data integrity in an ever-evolving cyber threat environment. . Double-extortion ransomware poses a serious threat to Linux systems, encrypting data and demanding ransom while threatening to leak sensitive information. Linux Ransomware, Data Exfiltration, Malware Prevention, Cyber Threats. . Anthony Pell
Aug 13, 2024
•
Hacks/Cracks
209
threatmalwaresecurity strategyRecognizing Linux Malware Risks And Detection Strategies
Although Linux offers security advantages, users must remain vigilant against various forms of malware and cyberattacks. . Linux is often praised for its enhanced security compared to other operating systems. Nevertheless, IT professionals must never assume that Linux is immune to threats. Due to widespread adoption in critical infrastructure, Linux has drawn the attention of advanced persistent threat (APT) groups aiming to breach its security. Additionally, Linux finds use in various IoT devices. One of the largest cyberattacks in history involved the “Mirai” malware , which exploited vulnerabilities in devices running Linux. In this article, we will explore characteristics of Linux malware, examine malware distribution methods, and learn how to thwart attacks. . Delve into the landscape of malware aiming at Linux systems, and identify proactive methodologies to bolster defenses and prevent cyber intrusions.. Linux Malware Threats, Cybersecurity Strategies, Malware Prevention Techniques. . Brittany Day
Aug 21, 2023
•
Security Trends
79
security toolsmalware analysismalware preventionExploring REMnux 7: Enhanced Tools Against Linux Malware Threats
Linux malware is on the rise, but the recent release of the REMnux 7 malware analysis toolkit could help change this troubling trend. . A new version of popular Linux toolkit REMnux is now available to download, equipping security analysts with an improved arsenal of tools with which to scrutinize Linux malware. Built on Ubuntu , REMnux has been in circulation for more than 10 years, now in its seventh incarnation. The latest version, REMnux 7, does away with some tools present in previous iterations and also adds a handful of new ones to the roster. As with previous versions, the new toolkit is configured specifically to minimize friction experienced by malware analysts and reverse engineers working to better understand Linux threats. . An updated iteration of the well-known Linux toolkit REMnux has just been released for users, featuring enhanced tools for analyzing malware.. REMnux Linux Toolkit, Malware Analysis Tools, Security Toolkit for Linux, Linux Malware Prevention. . LinuxSecurity.com Team
Jul 28, 2020
•
Security Projects
83
data protectionsecurity risksmalware preventionUSB Security Risks: Caution Needed with Rising Malware Threats
USB is an acronym for Universal Serial Bus; at least that is what it has stood for since 1999 when it was patented. But now it may take on a new meaning and instead stand for Ultimate Security Breakdown. . Most computer users have learned to protect themselves against malware by limiting the emails they open and the websites they visit. Malware detection and antivirus software is pervasive and has even become bundled with some operating systems. The link for this article located at Network World is no longer available. . Flash drives present serious hazards due to surging cyber threats; utmost vigilance is recommended for individuals.. USB Security Risks, Malware Deterrence, Data Protection Strategies. . LinuxSecurity.com Team
Oct 22, 2014
•
Hacks/Cracks
81
malware preventioncertificate authoritysecurity exposureDigiCert Trust Revocation: Mozilla And Microsoft Addressing Weak SSL Keys
Mozilla and Microsoft said Thursday they are revoking trust in all certificates issued by Digicert, a Malaysian intermediate certificate authority, after it was found that it had issued 22 certificates with weak 512 bit keys and missing certificate extensions and revocation information. . The Malaysian company was issued an intermediate CA certificate in July, 2010 by Entrust, which was licensed for distribution with SSL (Secure Sockets Layer) and S/MIME (Secure/Multipurpose Internet Mail Extensions) certificates. Entrust said in a bulletin on its website that it had been discovered that Digicert Malaysia has issued certificates with weak 512 bit RSA keys and missing certificate extensions. Entrust has revoked the 512 bit certificates issued by Digicert and made them available to major browser vendors to blacklist if found appropriate, it added. The link for this article located at Tech World is no longer available. . Apple and Google withdraw reliance on Symantec SSL certificates due to flawed encryption and absent features, affecting user safety.. trust revocation, ssl certificates, DigiCert, weak keys, certificate authority. . LinuxSecurity.com Team
Nov 07, 2011
•
Privacy
78
safe browsingsecurity featuremobile securityLookout Mobile Security Expands Protection With Safe Browsing
Socially engineered threats remain a major security concern on mobile devices, so to help protect its users Lookout Mobile Security (download) has added "safe browsing" to its premium version today at no extra cost. Safe browsing checks links you tap before they load in your device's Web browser to make sure they don't lead to phishing scams or malware.. Safe browsing is not quite widely available yet on mobile devices, even though it potentially can threaten mobile device users as easily as it does people using laptops and desktops. In an interview last week at CNET's San Francisco office, Lookout's Chief Technology Officer Kevin Mahaffey discussed what he thinks are the next big mobile security problems. "The two things we saw coming were drive-by downloads and exploits on Web sites. Since almost all web browsing on mobile is done with Webkit, Webkit exploits will affect almost everybody," he said. Webkit is the underlying rendering engine that powers the default mobile browser on iOS, most of the mobile browsers including the default on Android, as well as Google Chrome and Apple Safari on the desktop. The link for this article located at CNET is no longer available. . Norton Mobile Protection introduces advanced web safety tools to counteract phishing risks successfully on smartphones.. Mobile Security, Safe Browsing, Phishing Protection, Malware Prevention. . LinuxSecurity.com Team
Jun 15, 2011
•
Vendors/Products
77
malware preventionsecurity demonstrationusb exploitShmooCon Analysis: Linux USB Exploit Demonstration and Security Insights
At the ShmooCon hacker conference, security expert Jon Larimer from IBM's X-Force team demonstrated that Linux is far from immune from attacks via USB storage devices: during his presentation, the expert obtained access to a locked Linux system using a specially crafted USB flash drive, .... taking advantage of a mechanism that allows many desktop distributions to automatically recognise and mount newly connected USB storage devices and display the contents of the device, in this case, in the Nautilus file explorer. The desktop will do this even if the screensaver is already active. When trying to create thumbnails for the files on the device, Nautilus was tricked by a specially crafted DVI file which then activated the exploit. While the relevant hole in the evince thumbnailer was closed in January, the system used in the presentation was kept vulnerable for demonstration purposes. Larimer also disabled the Address Space Layout Randomisation (ASLR) and AppArmor security mechanisms. However, the expert presented measures that would allow potential attackers to bypass these obstacles. The link for this article located at H Security is no longer available. . Discover the methods by which USB worms can target Linux platforms and observe the demonstration at ShmooCon highlighting critical cybersecurity protocols.. Linux Exploits, USB Security, ShmooCon Insights, X-Force Presentation. . LinuxSecurity.com Team
Feb 09, 2011
•
Server Security
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
What got you started with Linux?
Search Topics
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!
Explore top 10 tips to secure your open-source projects now. Read More