Malvertising, or malicious ads, are hurting people – a lot of people. Anyone who is familiar with the malware problem will tell you that. As just one example of many, last year ads appeared on the New York Times, BBC, AOL, NFL and other popular websites in a malicious campaign attempting to install “ransomware” on visitors’ computers. To put things into context, the chances are better that the average internet user – roughly 99 percent of the population – will be hacked via their own browser then they will by a nation-state. The reason for this? Online ads.
I understand the business model… really, I do. Publishers rely on their viewers seeing ads because that’s how they make their money. In return they provide all of us with free content and services. If ads are blocked, publishers make less money, and the free content and services dries up. On the other hand, these same ads are one of the leading threats to personal security and privacy. So, what we have here is an online version of a Mexican standoff. Neither side is able to proceed without exposing themselves to danger.
So here we are without many technical options: the only thing internet users can do to protect themselves is to install an ad blocker (like hundreds of million of users have already done); and the only thing a publisher can do is to use an ad blocker detector on their website(s). This allows them to decide to block content and/or issue a plea to whitelist their ads. Unfortunately, the technology model for publishers to ‘safely’ include third-party content such as ads into their pages is also lacking. There just isn’t a comprehensive and scalable way to check billions of ads daily to see if they’re safe to distribute – or if the origin of an ad is reputable. Of course, publishers can also supplement or replace advertising revenue streams with a paid-for-content model, hosting conferences, asking for donations, and so on.
Let’s also be very clear— neither the publisher, advertisers, or the ad-tech industry that binds everything together takes on any liability for malvertising, infecting a user with malware, or the resultant damage. This also means that they have zero incentives to meaningfully address the problem, and never ever seem to want to talk about the security concerns that make ad blocking an essential security practice. They only want to talk about the money their side is losing, or how to make ads more visually tolerable. But even if ads magically become less obnoxious and less costly in terms of bandwidth, we still have the security problem. Until the advertising technology industry admits that their product – the ads themselves – are simply dangerous, there can be no real resolution.
This is a Security Bloggers Network syndicated blog post authored by Jeremiah Grossman. Read the original post at: Jeremiah Grossman