He said the email address in question was used to send toll road account statements.
As well as email addresses there are passwords on the open and accessible web server, according to Paris-based security researcher Benkow.
Those credentials are crucial for the spammer’s large-scale malware operation to bypass spam filters by sending email through legitimate email servers.
To check if you are affected by the hack, visit HaveIBeenPwned and enter your email address.
Troy Hunt wrote about it saying it is ‘the largest single set of data I’ve ever loaded into HIBP.
The server, hosted in the Netherlands, contained a vast amount of email addresses stored in database files without any access controls, making the data available to anyone.
“Just for a sense of scale, that’s nearly one address for every single man, woman and child in all of Europe”, said Troy Hunt of HaveIBeenPwned, according to Metro.
The Onliner Spambot lists also contain many email addresses that appear to have been scraped from websites. A full write-up on what data was found is in the blog post titled Inside the Massive 711 Million Record Onliner Spambot Dump’.
Plenty of passwords were also in the files on the server, Hunt said, adding that a random selection all traced back to the big leak from LinkedIn.
“.our email addresses are a simple commodity that’s shared and traded with reckless abandon, used by unscrupulous parties to bombard us with everything from Viagra offers to promises of Nigerian prince wealth”, Hunt commented.