steps to securing amazon EC2+EBS

I have just installed a fedora linux AMI on amazon EC2, from the amazon collection. I plan to connect it to EBS storage. Assuming I have done nothing more than the most basic steps, no password changed, nothing extra has been done at this stage other than the above.

Now, from this point, what steps should I take to stop the hackers and secure my instance/EBS?

How will you secure data in EBS?

How can you secure data at rest on an EBS volume? Attach the volume to an instance using EC2's SSL interface. Create an IAM policy that restricts read and write access to the volume. Write the data randomly instead of sequentially.

Actually there is nothing different here from securing any other Linux server.