We are finding many U.S. commercial email addresses at the Russianemailsworld.boommer.ru website. It is really a 'staging' area for emails to be posted by the criminal underground. They use WordPress as the blogging platform, and the cyber-mafia uses robots to post harvested email addresses to it, which puts them on the web. Sadly, Google indexes this site and it makes for easy searching.
Unfortunately there is nothing you can do to get emails taken down from this site, but you should be aware of what is out there. This is an aspect of your cyber situational awareness. Most organizations have no good idea -where- they stand.
The KnowBe4 Email Exposure Check (EEC) helps to give you a better understanding of your security posture in regards to exposed email addresses on the internet. Call it your 'email attack surface'. The emails on this Russian site are more commonly spear-phished. You can use the free EEC report to 'sinkhole' these email addresses so that you can better tune your spam traps and to monitor for email based attacks. And obviously you specifically need to give security awareness training to the employees with these exposed email addresses.
Sign up for a one-time free Email Exposure Check here
