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
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67
security issuesattack methodsdocument securitySecurity Issues Found In PDF Encryption Methods By PDFex Researchers
You would be forgiven for thinking that encrypting PDFs, before they are stored or sent via email, keeps their contents away from prying eyes. But according to researchers in Germany, it might be time to revisit that assumption after they discovered weaknesses in PDF encryption which could be exploited to reveal the contents of a file to an attacker. Learn more: . Dubbed ‘PDFex’ (PDF exfiltration), the weaknesses documented in Practical Decryption exFiltration: Breaking PDF Encryption by researchers from Ruhr University Bochum and the Münster University of Applied Sciences, offer two attack methods, each with three variants that depend on which PDF viewer is used to open a target document. The link for this article located at Naked Security is no longer available. . Vulnerabilities highlighted by analysts in PDF encryption may jeopardize file integrity via various attack techniques.. PDF Security Flaws, Document Encryption Risks, PDFex Research Insights. . LinuxSecurity.com Team
Oct 03, 2019
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Cryptography
67
document securitypdf attackdata extractionPDFex Attack: Data Exfiltration Threat to Widely Used PDF Readers
Have you heard about the new attack that German academics have developed that can extract and steal data from encrypted PDF files, sometimes without user interaction? Learn more: . Named PDFex, the new attack comes in two variations and was successfully tested against 27 desktop and web PDF viewers, including popular software such as Adobe Acrobat, Foxit Reader, Evince, Nitro, and Chrome and Firefox's built-in PDF viewers. The attack doesn't target the encryption applied to a PDF document by external software, but the encryption schemes supported by the Portable Document Format (PDF) standard, itself. The link for this article located at ZDNet is no longer available. . Uncover the techniques behind the PDFex vulnerability, which takes advantage of the encryption features in PDF documents, impacting leading systems and posing risks to sensitive information.. PDFex Attack, Data Extraction, PDF Encryption, Document Security. . LinuxSecurity.com Team
Sep 30, 2019
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Cryptography
83
security risksinsider threatdata exposureNetworked Scanners Present Real Threats From Insiders And Hackers
It happens every day -- a sensitive document lies in the copier room, forgotten by the person who left it on the scanner. No big deal, right? Nobody else was able to read it.. Wrong, says Michael Sutton, a lab researcher at security vendor Zscaler. In fact, that document could easily be captured by an insider or an external hacker, without ever moving the paper from the scanner. In a blog posted yesterday, Sutton offered some hard evidence to suggest that networked scanners equipped with remote operations capabilities can easily be tapped to collect data from the sensitive documents that are run through them each day. The link for this article located at Dark Reading is no longer available. . Wrong, says Michael Sutton, a lab researcher at security vendor Zscaler. In fact, that document coul. happens, every, sensitive, document, copier, forgotten, person. . LinuxSecurity.com Team
Sep 02, 2010
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Hacks/Cracks
83
malwarethreatsdocument securityOpenOffice Malware Worm Cross-Platform: Linux, Mac, and Windows
Malware targeting OpenOffice documents is spreading through multiple operating systems including Mac OS, Windows and Linux, according to Symantec. . According to the Symantec Security Response website, the worm is capable of infecting multiple operating system platforms and is spreading. The link for this article located at ZDNet is no longer available. . A recent malware strain is attacking LibreOffice files on Linux, Mac, and Windows platforms, representing a significant risk.. OpenOffice Malware,Cross-Platform Threats,Document Security. . LinuxSecurity.com Team
Jun 11, 2007
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Hacks/Cracks
83
data protectionencryptiondocument securityProtect Office Files With Advanced Encryption Methods For Security
Office workers looking to protect their documents may want to select a higher grade of encryption. Swiss information-technology firm Objectif S. The link for this article located at Security Focus is no longer available. . Delve into sophisticated encryption methodologies that can proficiently protect your corporate documents from illicit entry.. Document Security, Encryption Techniques, Data Protection. . LinuxSecurity.com Team
Jan 17, 2007
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Hacks/Cracks
74
document securityprinting risksprivacy controlUnderstanding Shared Printer Risks: Protecting Sensitive Documents
Security is more than just passwords on your desktop. Every agency knows physical security is just as important. However, within a department there is normally not much to protect documents from users already in the building. And that can cause trouble. . The most obvious problem comes when a document is printed on a shared printer. Even a document that originated on a secure desktop within a locked office becomes vulnerable when it is sent to a printer down the hall. Just because someone works with you doesn’t mean they have the same need or right to read a document. Moreover, there could be cleaners or other visitors in the area. By the time you get to the printer, someone might have read or taken your sensitive document. The link for this article located at Government Computer News is no longer available. . Shared printers in workplaces offer convenience but also pose risks to document security. Unauthorized access and network vulnerabilities require robust measures for protection.. Document Security, Shared Printer Risks, Privacy Control, Access Protection. . Brittany Day
Jun 19, 2006
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Network Security
67
security advisorydocument securityencryption flawWarning About Critical RC4 Encryption Vulnerability in Microsoft Office
A security researcher has issued an alert for a "serious security flaw" in the way document encryption is implemented in Microsoft's Word and Excel products, warning that a widely-used encryption algorithm is being misused by the software giant. . However, Microsoft officials are downplaying the threat, insisting that the reported flaw poses a very low threat for users of the two popular word processing programs. Hongjun Wu, a researcher at the Institute for Infocomm Research in Singapore, said Microsoft is misusing the RC4 (Rivest Cipher 4) algorithm that is licensed from RSA Data Security. "[W]hen an encrypted document gets modified and saved, the initialization vector remains the same and thus the same keystream generated from RC4 is applied to encrypt the different versions of that document. The consequence is disastrous since a lot of information of the document could be recovered easily," Wu said in an advisory. The link for this article located at Ryan Naraine is no longer available. . However, Microsoft officials are downplaying the threat, insisting that the reported flaw poses a ve. security, researcher, issued, alert, 'serious, flaw', document, encrypti. . LinuxSecurity.com Team
Jan 20, 2005
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Cryptography
81
access controlIT managementdocument securityManaging Email Access Risks: Challenges and Privacy Issues for IT Managers
The ability to govern access to emails and other documents might create more problems than solutions. Microsoft technology designed to allow greater control over documents and emails could create security and privacy headaches for IT managers.. . .. The ability to govern access to emails and other documents might create more problems than solutions. Microsoft technology designed to allow greater control over documents and emails could create security and privacy headaches for IT managers. Under Microsoft's Information Rights Management (IRM) system, users will be able to set restrictions on email messages to selectively prevent recipients from forwarding, copying or printing content. An email expiration feature also lets users set a deadline after which messages cannot be viewed. John Barker, an IT specialist at law firm Last Cawthra Feather, warned that the technology could encourage users to become more blasé about the content of emails. "If people think the rude email they sent would be de-activated, and therefore 'undiscoverable', they might be more inclined to send it in the first place," he said. "However, they are not going to get away with it, as the technology means the email will be recorded on the Exchange Server, or equivalent." The link for this article located at vnunet is no longer available. . Managing access to email systems could pose greater challenges than anticipated for IT administrators dealing with cybersecurity concerns.. Email Control, IRM Problems, Security Governance, Document Management, IT Challenges. . LinuxSecurity.com Team
Oct 27, 2003
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Privacy
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