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Statement of Applicability « The InfoSec Blog
The InfoSec Blog

The Truth About Best Practices

Posted by Anton Aylward

An article on Linked entitled 'The Truth about Practices" started a discussion thread with some of my colleagues.

The most pertinent comment came from Alan Rocker:

I'm not sure whether to quote "Up the Organisation", ("If you must have a
policy manual, reprint the Ten Commandments"),  or "Catch-22" (about the
nice "tidy bomb pattern" that unfortunately failed to hit the target), in
support of the article.

Industry-wide metrics can nevertheless be useful, though it's fatal to
confuse a speedometer and a motor.

However not everyone in the group agreed with our skepticism and the observations of the author of the article.
One asked

And Anton aren't the controls you advocate so passionately best practices? >

NOT. Make that *N*O*T*!*!*!  Even allowing for the lowercase!

"Best practices" is an advertising line of self-aggrandization invented by the Big Name Accounting Firms when operating in Consulting Mode.Information Security SWOT Analysis

Help on ISO-27000 SoA

Posted by Anton Aylward

This kind of question keeps coming up, many people are unclear about the Statement of Applicability on ISO-27000.
The  SoA should outline the measures to be taken in order to reduce risks such as those mentioned in Annex A of the standard. These are based on 'Controls'.

But if you are using closed-source products such as those from Microsoft, are you giving up control?  Things like validation checks and integrity controls are are 'internal'.

Well, its a bit of a word-play.

  • SoA contains exclusions on controls that are not applicable because the organization doesn't deal with these problems (ie ecommerce)
  •  SoA contains exclusions on controls that pose a threat (and risks arise) but cannot be helped (ie A.12.2 Correct processing in applications) and no measures can be taken to reduce these risks.

With this, a record must be present in risk assessments, stating that the risk (even if it is above minimum accepted risk level) is accepted

IBM CIO Report: Key Findings

The key to the SOA is SCOPE.