How dangerous is Skype?

Tuesday, 6 March 2007, 3:14 PM EST

One of security professionals' primary concerns about Skype is it's so easy for a Skype client to find a way around a secure enterprise firewall configuration. Skype does this by using ports 80 and 443, which are open in most firewalls to allow Web browsing. In addition, Skype may reroute traffic if the initial port assigned during the Skype installation isn't available. This makes blocking Skype at a firewall more difficult since the ports Skype uses can change as needed.

At Computerworld.

[ Read more ]




Spotlight

DMARC: The time is right for email authentication

Posted on 23 January 2015.  |  The DMARC specification has emerged in the last couple years to pull together all the threads of email authentication technology under one roof—to standardize the method in which email is authenticated, and the manner in which reporting and policy enforcement is implemented.


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