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A vulnerability discovered in OpenSSL could enable a remote attacker to bypass signature checks and launch spoofing attacks. Apple has released the latest version of its Leopard operating system, offering improved performance and fixing a number of bugs and security issues. Adobe has released an update to address a potential vulnerability in versions of its Flash Media Server. The recent discovery of a potentially serious Secure Socket Layer (SSL) flaw affecting a popular Linux distribution should act as a wake up call to the open source community, experts warn.. Apple has released a security patch which fixes a much-publicised flaw in Domain Name Server (DNS) security, which could have allowed cache-poisoning attacks. Debian Linux got a bit of a black eye this week with the announcement that a nasty cryptographic vulnerability exists in its version of the OpenSSL package. Heisenberg fan boys are shaking their heads this week to the tune of a pair of Swedish mathematicians who claim to have broken quantum cryptography. Our instinct is to fix bugs when we come across them, but sometimes that can cause more harm than good. Red Hat has patched nine vulnerabilities in its Enterprise Linux 5 kernel that could cause denial of service and unauthorised system access if exploited by a malicious attacker the vendor announced on Monday. Even though a vulnerability in the OpenSSL library used to generate key pairs on Debian-based Linux distributions has been fixed, IT administrators will be hard-pressed to ensure each key is unbreakable, a security researcher said this week. Apple fixed 31 vulnerabilities in the seventh Mac OS X security update of the year, including a fix for a dangerous wireless driver flaw that could lead to arbitrary code execution. More and more proprietary security tools use some open-source code. What are the advantages for companies? This is not a disk encryptor like most of the products on test, because it encrypts individual document files transparently. Indeed, it was designed and intended completely for enterprise use, and requires an external copy of Microsoft SQLServer in order to install. The leading developer of open source encryption technology reported this week that its government certification was under question for the second time in a year. At first glance, the idea of using open source software for a firewall or other security application seems counterintuitive, even absurd.