After HTML5 was being promoted as a replacement for Adobe’s Flash, security was a key reason.

But, Media Trust CEO Chris Olson, “HTML5 is not this panacea and safe haven.” In fact, the company — which monitors third-party code and advertising for brands — has stumbled upon a wave of malware on HTML5 ads on mobile and desktop web, with some wavelets beginning to hit HTML5 ads on apps.

“We are seeing more badness in HTML5,” he told me, such as a higher frequency of incidents and bigger attacks.

[Read the full article on MarTech Today.]

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