Half of the internet’s most popular sites a risk: CSIRO

New research from CSIRO's Data61, the data and digital specialist arm of Australia's national science agency, questions the 'trustability' of websites and in a world first quantifies the extent to which the trust model of today's World Wide Web is fundamentally broken.

Researchers found that around half of the Internet's most popular websites are at risk of malicious activity because they depend on a chain of other third parties to import external resources — such as ad providers, tracking and analytics services and content distribution networks — which are often required to properly load content.

These third parties can further load resources from other domains creating a dependency chain of up to over 30 domains, underpinned by a form of implicit trust with the original website. The research found that the larger the dependency chain, the greater the threat to malicious activity.

Professor Dali Kaafar, Information Security and Privacy research leader at CSIRO's Data61 and Scientific Director of Optus Macquarie University Cyber Security Hub, said that although this is a well-known web design decision, often overlooked are its implications on security and privacy.

"Almost all websites today are heavily embedded with tracking components. For every website you visit, you could be unknowingly loading content from potentially malicious parties and leaving a trail of your internet activity," Professor Kaafar said.

The research also found that 1.2 per cent of third parties linked to the top 200,000 websites were suspicious. Popular web resource Javascript, generally used to improve the user experience of the web, represents the greatest risk of malicious activity as they are designed to be executed undetected.

"The potential threat should not be underestimated, as suspicious content loaded on browsers can open the way to further exploits including Distributed Denial of Service attacks which disrupt traffic to websites, and ransomware campaigns which cost the world more than $US8 billion in 2018," Professor Kaafar said.

"Worryingly, the original or 'first party' websites have little to no visibility of where these resources originate. This points to a lack of 'trustability' of content on the web, and the need to better regulate the web by introducing standardised security measures and the notion of explicit trust."

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I use SuperAntiSpyware which after updating, I use after I have been on the internet websites.

It is amazing just how much spyware is collected in a halfhour period on the net.

 

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