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Playing It Straight: Building A Risk-Based Approach To InfoSec
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Uri Rivner
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Uri Rivner,
User Rank: Author
12/9/2015 | 10:48:17 AM
Dynamic risk-based decisions
Great as always Josh.

Beyond making risk-based choices, it's time the enterprise begin to realise that the authentication and authorization paradigms that have been with us since the dawn of corporate security history are all but dead. What does an authentication session mean anyway these days? All fraud cases in online banking come from authenticated sessions. All hacks come from authenticated nodes.

The same applies to authorization. Take RBAC - a fundumental principal in security. Josh is a CTO, so he has access to this-and-that. Unless Josh changes his role, or unless that role needs an updated access scheme, that's basically it. But in today's reality, it's totally rubish. Yes, Josh is entitled to access this-and-that, but only if I think it's really Josh, and he really needs that access right now. If there are signs of foul play, I may change my mind. And if I have an ability to dynamically change my mind about authorization, and make sure people get access based on the risk for this specific activity, I'm far better off.

The same goes for my smart home app, the one I'm using to control my smart home. Once I authenticated, I have full access to everything. That's history. Future is different: far more agile and adaptive. The more it looks like me, and the lowest the risk with my current actions, the greater control I should have. And think of IOT appliances as well - they also have authentication and authorization controls that are totally black and white, and without giving it shades and adaptiveness - we'll be screwed a few years from now.

The enterprise security paradigms need some heavy shaking, become far more dynamic, adaptive and risk-based, so real time decisions can be made instantly for every activity.

 
gszathmari
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gszathmari,
User Rank: Apprentice
12/7/2015 | 6:00:08 PM
Risk based approach is the king
The risk based approach is the only way that ensures money and time is spent on the right things for protecting the organisation. Risk can be managed on multiple levels, starting from the business risks, throughout IT and infosec risks all down to the code level.

I also wrote an article today on risk driven approach, but on incident management. This approach allows incident response teams to focus on the critical areas with their efforts. The post is available on Rainbow and Unicorn blog.


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