Archive for the ‘security’ Category

PostHeaderIcon Email and Web-Based Threats

Securing your company boundaries: The Changing Nature of Email and Web-based Threats

Author: MFrizzi

Securing your company boundaries: The changing nature of email and web-based threats

Growing pressure on the enterprise gateway means email viruses and worms are giving way to subtler forms of malicious spam, and a rise in web-based malware.

The changing email threat

Malware-infected email has decreased as cybercriminals have found more efficient ways to get the information they want. Instead of sending the malware itself as an attachment which has to be constantly rewritten to avoid detection they spam out emails with links to websites from which viruses and other malware are inadvertently downloaded by unsuspecting visitors. For example, a spammed email in November 2006 offered free explicit images and videos, in an attempt to trick users into downloading a malicious Trojan horse.

Up to 30 percent of companies with 500 or more staff have been infected as a result of internet surfing, while only 20-25 percent of the same companies experienced viruses and worm from emails.”
IDC.

The growing web threat

There is a low level of threat awareness among surfers, and web security within corporate networks is often overlooked. Users are inadvertently downloading spyware and unwanted applications. At the same time, employees’ uncontrolled browsing is having a significant impact on productivity and network bandwidth, and the security of confidential data.

Our expert solutions

We have a range of solutions to help you meet the challenge of protecting your organization from infection and legal risk, while also meeting end user demands for performance and accessibility. Scanning billions of web pages a day, proactively discovering thousands of new malicious URLs a week, and performing round-the-clock threat analysis, SophosLabs™ delivers focused security and performance, and rapid, proactive protection against known and unknown threats.

This article was provided by Sophos and is published here with their full permission. Sophos provides full data protection services including: security software, encryption software, antivirus, and malware protection.

Keywords: anti-virus, malware, firewall, spam, spyware, internet security, data protection, network access control, virus protection, compliance, encryption, network security, spyware removal, anti-spyware, hippa, aes, nac, computer security, hitech, data loss

About the Author:

This article was provided by Sophos and is reproduced here with their full permission. Sophos provides full data protection services including: security software, encryption software, antivirus, and malware.

Article Source: ArticlesBase.comSecuring your company boundaries: The changing nature of email and web-based threats

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PostHeaderIcon Hardening Debian Linux

As a Debian Linux user, administrator, and integrator, I found it absolutely necessary to research, try, and implement the best solution necessary to harden or secure my Linux server. Although I have often used multiple web sites in the past, I have found the following writeup to be one of the best single compilations of how to harden a Debian system in my internet travels. If you need to install a secure version of Linux you need to do two important things:

  1. Install Debian Linux
  2. Review the wonderful document below

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PostHeaderIcon Learning About Linux iptables!

This is a very nice tutorial on a basic setup of Linux iptables for a server. It is great to watch if you are a Linux admin but don’t know much about Linux firewalls! I run Debian and CentOS Linux on different servers and this will come in handy. I just wanted to share with the community at large. Enjoy!

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