Filter Technologies

CAN FILTER TECHNOLOGIES HELP TO STOP
CHILD SEXUAL ABUSE MATERIAL?

Filter Technologies

There are different types of filtering options, but in the most basic of explanations all filter technologies look at web traffic that passes in and out from the company and decides what is allowed to pass through. These methods work at different layers of a network, which determines how specific the filtering options can be.

What the solutions have in common is that they look for suspect behaviour, surf patterns, links,  known “bad” domains or specific patterns in different ways. They all only look at a portion of the traffic (a large corporation can have a million DNS requests every second and looking in detail at all that traffic would require enormous data power).

How do they work?

Instead of one solution trying to do it all, companies install different solutions that work in layers and look at different parts of the traffic.

DOMAIN FILTERING

A DNS filtering solution is a specific type of web filter that operates as a middleman between a client computer and the web server you are trying to access.

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URL FILTERING

URL filtering solutions are more sophisticated and granular than just a mechanism to block access to domains. URL filtering solutions can be used to block access to specific websites …

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How effective are filter technologies at stopping child sexual abuse material?

Filter technologies are only as effective as the intelligence put into the solutions – the lists of domains or URL:s known to contain harmful material. Keeping those lists up to date requires a lot of work and continuous updates. The focus for all traditional filter solutions are security threats such as business intelligence, service disruptions, ransomware, fishing etcetera, which means that, unfortunately, child sexual abuse material comes far down the list. As a result, filter technologies can definitely be used to block child sexual abuse material, but they are not truly effective.

About the Technical Model National Response

Inspired by the WeProtect Global Alliance Model we have set out to develop an initiative that looks at technology. We call it the Technical Model National Response.  It is an overview of the existing technologies that need to be applied by different sectors and businesses to effectively fight the spread of child sexual abuse material.

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