Devcon reported that Windows users chose them hackers no surprise. Most malware in the last 30 years has targeted Windows devices.
What came as a surprise to the researchers is that according to statistics, most campaigns, which have taken place in the last four months, target a surprising number of users. ChromeOS.
Devcon reported that 22% malicious ads targeted its operating system Google, ChromeOS. This percentage is much higher than the rate of attacks on other operating systems: MacOS (10,5%), iOS (3,2%), Android (2,1%) and iPadOS (0,8%).
The researchers noted that the least vulnerable is the Linux, with an attack rate (with malicious ads) of just 0,3%. This is a finding that did not surprise researchers, as most Linux systems are used as servers.
Most malicious ads come from three ad networks
Confiant said it analyzed over 120 billions of ads published during the third quarter of 2019 (from 1 July to 30 September 2019) through 75 ad networks.
The researchers found that all ad networks are vulnerable to malvertisers.
Some networks try to combat malware and adopt security measures. However, others platforms seem to tolerate hackers and 'allow' them to use their networks to distribute malicious ads.
According to Confiant, about 60% of all malicious ads during the third quarter of 2019, they came from only three ad networks.
"Indeed, only one network was responsible for 30% of the malicious ads that appeared," Confiant said.
The company did not release the names of the three networks used by the hackers. However, he said that a network is able to detect a malvertising campaign running through its platforms, as the campaigns are responsible for displaying a large percentage of ads.
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