It only took 13+ years, but this week KrebsOnSecurity surpassed 50,000 subscribers to our newsletter, which is and always has been just been a text-based email alert with a blurb and link that goes out w/ every story that gets published.

Haven't ever tried to survey our subscribers, but finally considering it. Would be open to ideas about how best to do that without annoying everyone.

The last time we did an informal analysis of our subscriber base -- ignoring all the gmails, yahoo etc addresses and looking at corporate domains -- we had something close to 70 percent of US financial institutions represented, which is a lot. But beyond that I don't have a lot of insight into my own base, and I'm unwilling to entrust our subscriber list to anyone else.

@briankrebs Why not include a voluntary survey link at the bottom of a few emails? The TWiT podcast network does one every year. They’re sure to mention that that’s in lieu of trying to track their users.
@briankrebs 1. Congratulations!
2. Don't ignore the gmails and yahoos, they are your most valuable subscribers.
3. I would consider subscribing to a newsletter with corporate email a (mild) security breach, don't you?
@briankrebs
So 30% want to appear in the newsletter rather than reading it?
@briankrebs maybe you'd have more if your site would validate addresses a bit better. Yes this is a valid email address.
@sr3 @briankrebs As someone with a .name email, it’s staggering how many people assume all TLDs are three characters. Buffalo Wild Wings, myEyeDr, and so many others. I know people with .co.uk, .church, .marketing, and many more “invalid” email domains.

@briankrebs this attitude and approach to managing your list alone makes those who subscribe more trusting and for good reason. I think whatever you decide to do will be positive and you owe it to yourself to invest more into making it work for you.

Thanks for your consistently great content and for inspiring others who write and investigate.

@briankrebs congrats !!! you’re doing amazing work

@briankrebs

Post a link and you'll get another one.