Schneier - Conservation of Threat

Here's some interesting research about how we perceive threats. Basically, as the environment becomes safer we basically manufacture new threats. From an essay about the research:

To study how concepts change when they become less common, we brought volunteers into our laboratory and gave them a simple task ­-- to look at a series of computer-generated faces and decide which ones seem "threatening." The faces had been carefully designed by researchers to range from very intimidating to very harmless.

As we showed people fewer and fewer threatening faces over time, we found that they expanded their definition of "threatening" to include a wider range of faces. In other words, when they ran out of threatening faces to find, they started calling faces threatening that they used to call harmless. Rather than being a consistent category, what people considered "threats" depended on how many threats they had seen lately.

This has a lot of implications in security systems where humans have to make judgments about threat and risk: TSA agents, police noticing "suspicious" activities, "see something say something" campaigns, and so on.

The academic paper.



from Schneier on Security https://www.schneier.com/blog/archives/2018/06/conservation_of.html

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