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 1 articles for you...
67
data protectionquantum encryptionquantum key distributionMagiQ Technologies Launches Navajo: Secure Quantum Key Distribution Network
Start-up MagiQ Technologies, from Somerville, Massachusetts, has released the first commercial implementation of quantum cryptography, the much-heralded solution to the perfect encryption cipher. Theoretically, encryption ciphers created using quantum physics are unbreakable. . . . Start-up MagiQ Technologies, from Somerville, Massachusetts, has released the first commercial implementation of quantum cryptography, the much-heralded solution to the perfect encryption cipher. Theoretically, encryption ciphers created using quantum physics are unbreakable . While MagiQ Technologies' product, Navajo, isn't itself a quantum device it uses one of the fundamental tenets of quantum theory: Heisenberg's Uncertainty Principle, to create a Quantum Key Distribution (QKD) network. Werner Heisenberg first published his theory in 1927, stating that the more precisely the position of is known, the less precisely the momentum is known. This succinct statement addresses the uncertain relationship between the position and the momentum (mass times velocity) of a subatomic particle, such as an electron, and has profound impact on the development of future information systems. MagiQ's Navajo creates encryption keys that change up to 1,000 times a second to prevent eavesdroppers from deciphering the transmitted data packets. The keys are transmitted over a secure fiber optic link in a stream of polarized photons. If an eavesdropper (or other transmission failure) interrupt the flow of polarized photons, the data is immediately altered, and the encryption system can detect the change. Heisenberg's uncertainty principle comes into play in that even if the eavesdropper only looks at one of the polarized photons, the data stream will be changed, and the intrusion detected. Navajo works with off-the-shelf encryption ciphers, such as the U.S. Government-supported AES (Advanced Encryption Standard). While AES is very secure, the combination of AES and Navajo is theoretically absolutely secure: unbreakable. . Start-up MagiQ Technologies,from Somerville, Massachusetts, has released the first commercial imple. start-up, magiq, technologies, somerville, massachusetts, released, first, commercial, imple. . LinuxSecurity.com Team
Jan 12, 2024
•
Cryptography
67
security flawcryptographycommunication securityUniversity of Toronto QKD Attack Exposes Critical Security Weakness
An important weakness has been discovered in the technology of quantum key distribution (QKD), which is increasingly being used by military and government to secure sensitive communications.. Researchers at the University of Toronto have successfully attacked a QKD system from Swiss company, id Quantique, the first time an attack on a commercial system using the technology has been demonstrated. The highly-theoretical attack was based on disproving assumptions about the levels of errors which can be taken by either the sender (Alice) or receiver (Bob) to be indicative that the key data has been compromised by a third party (Eve). The security principle of QKD is the impossibility of a simple intercept-and-resend attack being hidden from sender or receiving parties, normally taken to a quantum bit error rate (QBER) of 20 percent or greater becoming apparent in the signal, a figure that takes account of a degree of 'noise'. The link for this article located at Network World is no longer available. . Scientists from Stanford University have effectively compromised a German QKD setup, uncovering significant vulnerabilities.. Quantum Key Distribution, QKD Security Flaw, Cryptographic Weakness. . LinuxSecurity.com Team
May 21, 2010
•
Cryptography
67
data securityquantum cryptographyquantum key distributionNIST Quantum Key Distribution Breakthrough Improves Data Security
Quantum cryptography, the most secure method of transmitting data, has taken a step closer to mainstream viability with a technique that simplifies the distribution of keys. Researchers at the National Institute of Standards and Technology claim that the new "quantum key distribution" method minimises the required number of detectors, the most costly components in quantum cryptography. What is your opinion on the state of computer cryptography. I am glad to see researching working on improving the security of cryptography. . The link for this article located at vnunet is no longer available. . The link for this article located at vnunet is no longer available.. quantum, cryptography, secure, method, transmitting, taken, closer, mainst. . LinuxSecurity.com Team
Jun 03, 2008
•
Cryptography
67
security measuressecurity researchcryptographyToshiba Research Breakthrough in Quantum Key Distribution Security
A loophole in quantum cryptography that could allow a hacker to determine a secret key transmitted using the technology has been closed by new research. Working at Toshiba Research Europe in Cambridge, scientists found that laser diodes used to transmit keys used to encrypt data, known as Quantum Key Distribution (QKD), sometimes transmitted more than one photon at a time. Quantum encryption works by transmitting key data as a stream of single photons. . Should an eavesdropper try to intercept the transmission, monitoring a single photon would change the state of that photon, and this would make both ends of the transmission aware that the data had been eavesdropped. However, the laser diodes can sometimes transmit more than one photon and so a hacker could monitor the second photon, leaving the first photon unchanged and this would not alert anyone that the key transmission had been compromised. The link for this article located at PCpro is no longer available. . Should an eavesdropper try to intercept the transmission, monitoring a single photon would change th. loophole, quantum, cryptography, allow, hacker, determine, secret, transmitted. . LinuxSecurity.com Team
Feb 21, 2007
•
Cryptography
67
optical fibersecure communicationquantum key distributionLos Alamos Researchers Enable Quantum Key Distribution Over 50km Fiber
A team of Los Alamos National Laboratory scientists, in collaboration with researchers from the National Institute of Standards and Technology in Boulder, Colo., and Albion College, in Albion, Mich., have achieved quantum key distribution (QKD) at telecommunications industry wavelengths in a 50-kilometer (31 mile) optical fiber. According to the researchers, the work could accelerate the development of QKD for secure communications in optical fibers at distances far beyond current technological limits. . In research published recently in Applied Physics Letters, the team describes the use of new superconducting transition-edge sensors (TES) to distribute cryptographic key material at wavelengths of 1,550 nanometers through 50 kilometers of optical fiber. TES could provide increases in range and performance over current QKD photon detection schemes. Unlike the single-photon sensitive avalanche photodiodes (APD) that are typically used in existing optical fiber QKD systems, TESs detect photons by measuring minute temperature increases in a superconducting material caused by the absorption of individual photons. The link for this article located at SCMagazine is no longer available. . In research published recently in Applied Physics Letters, the team describes the use of new superco. alamos, national, laboratory, scientists, collaboration, researchers. . LinuxSecurity.com Team
Feb 21, 2006
•
Cryptography
74
network securityquantum cryptographyquantum key distributionIntroducing Quantum Encryption: Secure Your Networks Effectively
Network security systems that rely on the laws of quantum mechanics to create hack-proof networks are arriving in the form of practical products that are easily integrated into optical networks. At the Infosecurity Europe 2005 trade show in London, id Quantique SA (Geneva) announced a turnkey quantum encryption system enabling hack-proof secure bridges between two Fast Ethernet (IEEE 802.3u) networks up to 100 kilometers apart. The move followed a March announcement by MagiQ Technologies Inc. (New York), which rolled a rework of its Quantum Private Network (QPN) 5505 system. The QPN 7505 incorporates Cavium Networks' Nitrox data encryption processors. . The id Quantique product is "the first quantum cryptography system designed for network engineers and not for physicists," said CEO Gregoire Ribordy. In quantum crypto, different quantum states (such as polarization) of individual photons are used to represent ones and zeroes with a specified probability distribution. A hacker who tapped into an encrypted photon would alter that distribution, alerting the receiver that an observation of the key had taken place. Quantum-key distribution (QKD) offers a level of security that would not be possible for AES unless a new AES key, of the same length as the data to be transmitted, were made for each transmission. The link for this article located at EE Times is no longer available. . Delve into the premier quantum encryption framework tailored for engineers, ensuring invulnerable and unbreakable communication channels.. Quantum Encryption, Quantum Cryptography, Network Security Systems, Hack-Proof Networks, Optical Network Integration. . Brittany Day
Apr 28, 2005
•
Network 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