Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×
Due to the increasingly complex nature of data transmission, it has becomes a necessity to use various levels and types of cryptography within the scope of many environments. Onc critical issue that arrises from this is that it is . . . . Due to the increasingly complex nature of data transmission, it has becomes a necessity to use various levels and types of cryptography within the scope of many environments. Onc critical issue that arrises from this is that it is difficult to compare and contrast various types of cryptographic schema. How does a 1024 bit RSA key stack up against a 1024 bit 3DES key? How does elliptic curve cryptography compare to more common algorithims? These kind of questions are difficult to answer, but if you manage an environment where security and cryptography are critical components, they are question you just might need to be able to resolve. The link for this article located at Network Computing is no longer available. . Due to the increasingly complex nature of data transmission, it becomes necessary to use various cryptographic methods for security.. Data Security,Cryptographic Methods,Encryption Techniques,Transmission Security. . LinuxSecurity.com Team
Criminals are using ransomware-like tactics and poisoned websites to get your employees’ computers to mine cryptocurrencies. Here’s what you can do to stop it. . Cryptojacking is the unauthorized use of someone else’s computer to mine cryptocurrency. Hackers do this by either getting the victim to click on a malicious link in an email that loads cryptomining code on the computer, or by infecting a website or online ad with JavaScript code that auto-executes once loaded in the victim’s browser. Either way, the cryptomining code then works in the background as unsuspecting victims use their computers normally. The only sign they might notice is slower performance or lags in execution. . Uncover the mechanisms behind cryptojacking, its impact on system efficiency, and vital strategies for defense and recovery from such intrusions.. Cryptojacking Prevention, Malware Protection, Cybersecurity Techniques. . LinuxSecurity.com Team
For all too many companies, it . An effective approach to IT security must, by definition, be proactive and defensive. Toward that end, this post is aimed at sparking a security mindset, hopefully injecting the reader with a healthy dose of paranoia. . An effective approach to IT security must, by definition, be proactive and defensive. Toward that en. companies, effective, approach, security, definition, proactiv. . LinuxSecurity.com Team
Hackers are finding ways to bypass sandboxes and sneak in their malware, so some vendors are creating new approaches to counter them. Attackers continue to find ways to evade traditional sandboxes, and some vendors are looking to raise the bar with new approaches to isolating and vetting files.. Sandboxing adds an extra layer of protection, diverting untrusted files or programs from unverified third parties, suppliers, or websites into a separate, secure environment where they can be inspected for malicious code. Based on that inspection, the attachments, files or applications are either allowed to enter or rejected from moving further into the network. The link for this article located at Dark Reading is no longer available. . Sandboxing adds an extra layer of protection, diverting untrusted files or programs from unverified . hackers, finding, bypass, sandboxes, sneak, their, malware, vendors, creatin. . LinuxSecurity.com Team
For a lock picker, the world is a different place. Take, for example, a typical suburban house, with a bicycle in the front yard and a five-pin Weiser bolting the front door. When most people see that lock, they see security. But a lock picker sees a game. And maybe 15 seconds with a rake pick and a tension wrench. As for the bike Kryptonited to the railing out front? Please. Ten seconds, tops, with a Bic Round Stic ballpoint. The link for this article located at Wired is no longer available. . Delve into the fascinating realm of lock picking tournaments, where safeguarding becomes a thrilling challenge tackled by specialists.. lock picking, competition techniques, infiltration methods, security games. . LinuxSecurity.com Team
Another month, another few dozen patches to install -- it's never-ending. It's frustrating. Software coding tools supposedly have security built in by default. We have "safe" programming languages. We have programmers using SDL (security development lifecycle) coding tools and techniques.. We have operating systems with more secure defaults and vendors that fuzz and attack their own software with a vengeance to find holes. We have companies spending billions of dollars to eliminate software bugs. The link for this article located at InfoWorld is no longer available. . We have operating systems with more secure defaults and vendors that fuzz and attack their own softw. another, month, dozen, patches, install, never-ending, frustrating, software. . LinuxSecurity.com Team
The online anonymity network Tor is a high-priority target for the National Security Agency. The work of attacking Tor is done by the NSA's application vulnerabilities branch, which is part of the systems intelligence directorate, or SID. The majority of NSA employees work in SID, which is tasked with collecting data from communications systems around the world.. According to a top-secret NSA presentation provided by the whistleblower Edward Snowden, one successful technique the NSA has developed involves exploiting the Tor browser bundle, a collection of programs designed to make it easy for people to install and use the software. The trick identifies Tor users on the Internet and then executes an attack against their Firefox web browser. The link for this article located at Schneier on Security is no longer available. . Discover the methods employed by the NSA to track Tor users through sophisticated exploitation strategies and maneuvers aimed at undermining privacy.. Tor Exploitation, Online Privacy, NSA Attacks, Firefox Vulnerabilities. . LinuxSecurity.com Team
The robots currently at work knocking around for your guessable password could easily be repurposed to guess your Unicode password currently known as your port knocking sequence, and quite likely have been already. Plus, we already have authpf(8) for network-level restrictions on access. . Whenever you write about security in general and SSH security in particular (and for good measure also get slashdotted for your efforts), the comments inevitably turn up a variety of useful and less useful suggestions. The link for this article located at That grumpy BSD guy is no longer available. . Port knocking allows access to services by sending a sequence of packet "knocks" but has vulnerabilities like reliance on secrecy and lack of encryption. Port Knocking Alternatives, Secure SSH Access, SSH Security Techniques. . LinuxSecurity.com Team
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