An online black market known as xDedic has a list of over 70.000 servers that have been compromised, according to Kaspersky Lab.
Servers are located in 173 countries and are owned by businesses, universities and even government agencies. Most server administrators have no idea that their systems have been compromised. 
In the xDedic black market, hackers sell access on these servers for $6.
Οι hackers φαίνεται να έχουν παραβιάσει τους διακομιστές χρησιμοποιώντας (σχετικά) απλές μεθόδους, δοκιμάζοντας γνωστά τρωτά σημεία και αναζητώντας αδύναμους κωδικούς πρόσβασης. Μόλις παραβιάσουν τον διακομιστή, οι hackers δημιουργούν μια λίστα από το λογισμικό που υπάρχει εγκατεστημένο, καταγράφουν το record browsing and other details to facilitate online shoppers.
After the purchase, hackers can use the servers to send spam, steal data, and generally do other illegal things while avoiding capture if someone finds the source. attacks.
According to Kaspersky:
"It's a hacker's dream, simplifying access to victims is cheaper and faster, and it opens up new possibilities for cybercriminals."
Kaspersky reports that although they are missing they are basically missing data, the underground market is believed to have been created by Russians. It was created two years ago and has over 400 sellers as of May.
