Sidenote: EAs are just as good. Having been on the end of an EA to a CEO telling me to fix something I can tell you it's not a place you want to be. They can, in a limited way, invoke CEO power.
It's never a sure thing but it doesn't hurt to try either.
Also Werner Vogels once popped into a hacker news thread I posted about my AWS account having leaked keys and a bill run up by a "hacker" (this was before it was common)[0][1].
[0]: https://vertis.io/2013/12/16/unauthorised-litecoin-mining/
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