title: MongoDB being held for ransom
body: <p>My mongodb is now held for ransom with a message of "Your DB is Backed up at our servers, to restore send 0.1 BTC to the Bitcoin Address then send an email with your server ip". After reading many articles, I am still unsure what publicly accessible database mean. Currently I access my database by SSH into my droplet with username and password and connect via port 27017 how can hacker access my db? Please advise me on what to do to prevent this happening in the future! Thank you</p>