Risky Business #88 -- Munir Kotadia returns and Kimberly Zenz talks McColo

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This week's edition of Risky Business is sponsored by Check Point Software Technologies and hosted, as always, by Vigabyte virtual hosting.

On this week's show we're taking a fresh look at "bulletproof" hosting services. Just last week a California-based hosting company, McColo, was de-peered by its upstream providers for hosting bot net command and control servers.

The result? A 65-75 percent reduction in global spam levels.

We'll talk to iDefense Senior Threat Analyst Kimberly Zenz about the closure of McColo and what the lasting effect -- if there is one -- will be.

This week also sees the triumphant return of Munir Kotadia from ZDNet Australia. Munir drops in to discuss the week's security news.

And Check Point's Engineering Services Manager, Steve MacDonald, pops in for this week's sponsor interview -- the topic is capacity planning.