Hi,
I know how frustrating it can be to have one of your servers compromised, and I understand that having your account suspended only adds to that frustration. Unfortunately, the compromised droplet was actively attempting to access other servers and was likely a part of a botnet. Our support team has followed up with you privately, and your account should now be unlocked.
There are some steps that you can follow to secure and protect your droplets in the future:
- Use SHH keys to access your droplets: https://digitalocean.com/community/articles/how-to-set-up-ssh-keys--2
- Set up an iptables firewall https://www.digitalocean.com/community/articles/how-to-set-up-a-firewall-using-ip-tables-on-ubuntu-12-04
- Configure fail2ban to protect your ssh server and/or change the port ssh is running on https://www.digitalocean.com/community/articles/how-to-protect-ssh-with-fail2ban-on-ubuntu-12-04 https://www.digitalocean.com/community/articles/initial-server-setup-with-ubuntu-12-04

by Etel Sverdlov
This tutorial covers how to login with root, how to change the root password, how to create a new user, how to give the new user root privileges, how to change the port, and how to disable root login in. This tutorial is written for Ubuntu. When you first create your server, this tutorial explains the first steps you need to take. This tutorial is written for Ubuntu 12.04.