Home > Ask the Security Experts > Questions & Answers > The security implications of using IM through a dedicated port
Ask The Security Expert: Questions & Answers
EMAIL THIS

The security implications of using IM through a dedicated port

Ed Skoudis EXPERT RESPONSE FROM: Ed Skoudis

Pose a Question
Other Security Categories
Meet all Security Experts
Become an Expert for this site
>
QUESTION POSED ON: 13 May 2003

I'm the security administrator in my organization and am debating one issue with our development manager.

On his PC, he has a VPN link to one of our partner's systems (warranty system). He wants to have MSN messenger on his PC through a dedicated port so it allows only text messages. I'm worried about security implications since this will allow his PC to have a direct link to the Internet without going through our firewall or proxy. Is there a safe way to satisfy this need without the risk, or is it risky enough to reject his request?


>

I understand your concerns. MSN Messenger, as well as other instant messenger services, could open security holes. If there isn't a pressing business need, I always block them. However, sometimes users actually require these services for business purposes. I'd make sure that he has a personal firewall (such as Zone Alarm or BlackICE) and an antivirus program on his computer. Also, he should keep his system patched, running the Windows Update feature on a regular (say weekly) basis. That should mitigate much of the risk.

For more information on this topic, visit these other SearchSecurity.com resources:
  • Best Web Link: Secure messaging
  • Article: IM putting enterprises at risk to viruses, attack
  • Web Security Tip: Prevent hackers from sneaking in through IM

    		•

    Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   



    RELATED RESOURCES
    2020software.com, trial software downloads for accounting software, ERP software, CRM software and business software systems
    Search Bitpipe.com for the latest white papers and business webcasts
    Whatis.com, the online computer dictionary



    Search and Browse the Expert Answer Center
    Search and browse more than 25,000 question and answer pairs from more than 250 TechTarget industry experts.
    Browse our Expert Advice



    Find Security Solutions for Your Business
    TechTarget Security Media
    Information Security View this month\\'s issue and subscribe today.
    Information Security Decisions Apply online for free conference admission.
    		SearchSecurity.com
    HomeNewsMagazineMultimediaWhite PapersLearningAdviceTopicsEventsAbout Us
    SEARCH :     Site Index Powered by: Search Powered by Google

    About Us  |  Contact Us  |  For Advertisers  |  For Business Partners  |  Site Index  |  RSS
    TechTarget provides technology professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective purchase decisions and managing their organizations' technology projects - with its network of technology-specific websites, events and online magazines.

    TechTarget Corporate Web Site  |  Media Kits  |  Site Map




    All Rights Reserved, Copyright 2003 - 2009, TechTarget | Read our Privacy Policy     		  TechTarget - The IT Media ROI Experts