The Alert Logic® agent has SSL support. The strength of the available SSL ciphers will depend on which version of the agent is being used. The agent and the appliance will negotiate an SSL connection using the strongest cipher available in the code.
Encryption is not on by default, but it is possible to specify that this traffic should be encrypted via protected host policies. To encrypt all agent to appliance communications within the environment, simply modify the default policy and check the Encrypt Enabled check box.
Alternatively, a second protected hosts policy could be created with the Encrypt Enabled check box selected. This new policy could then be selectively applied to only those hosts where agent to appliance encryption is required.