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.