Are you positive that "tell nobody" is the mitigation strategy that Google used here? They could have easily asked router vendors to patch their devices, asked ISPs to blackhole those customers until they're patched, etc.

Patch what though? They know that they're getting hit with unprecedented traffic, not how those computers were infected.

It's mostly not infected computers, but rather poorly configured proxies that are open for anyone to bounce malicious traffic through. Convincing everyone to clean up their open proxies is a long-term, hard problem. But I plan to tackle it soon....

How? I suppose the most effective way is to have those proxies attack each other. But don’t, it’s likely illegal.

the most efficient way would be to write a script that gains root on those open proxies and then fixes the issue.

Effective or efficient? Would seem rather inefficient to spend time researching all the possible ways to gain route on x number of servers, finding an exploit, crafting some plan to execute it, keeping your prints clean etc etc

What way would be more efficient?

Get a few companies to agree that open proxies are a scourge that needs to be stopped. They each apply some action to open proxies (user-facing messaging, loss of functionality, captcha, or complete block), and the users of those proxies will get the problem fixed.

The hard part (and it truly is hard!) is convincing a few companies to do this. It risks user complaints in the short term, to solve a problem that may not be very acute for the largest companies (who can simply absorb these attacks).

[delayed]

So you're saying Google and Cloudflare, just as an example, should block consumers of other ISPs because they run "unpatched" software or they have malware running on their devices? Lol, this is a very absurd and narrow minded view how the internet works. You deal with the traffic, you don't randomly block eyeball networks because they're attacking you.

> you don't randomly block eyeball networks because they're attacking you.

ISPs do this literally all the time. They sell services that do this.

> the owners of those devices isn't going to be informed, nor is their ISPs

not necessarily true

But these ISPs that give something and inform and even isolate their infected customers are few and far between.

Shout out to Dutch ISP XS4ALL who was (is?) very very strict and active in this space.

Google should start using their ad network to silently update people’s security!

Uh, no thanks from this user.

Also, sounds illegal.

Definitely illegal in the US.