You may have now heard of the “Heartbleed Bug.” First of all, We want to reassure you that if you are hosting on a TetraHost shared, reseller or radio server, that your server has already been patched. Only those client who are using SSL service from us will have the risk of getting affected. As we have taken care of the issue immediately, we do not think that any of our client is affected.
More information about the Bug is available on the following site “www.heartbleed.com”:
The Heartbleed bug allows anyone on the Internet to read the memory of the systems protected by the vulnerable versions of the OpenSSL software. This compromises the secret keys used to identify the service providers and to encrypt the traffic, the names and passwords of the users and the actual content. This allows attackers to eavesdrop on communications, steal data directly from the services and users and to impersonate services and users.
Here are some resources that can tell you if a site is vulnerable:
https://www.ssllabs.com/ssltest/
I am writing this blog to let our client know about the issue only. Please do not Panic, we have the situation in control for you 
For full information regarding this situation, we recommend reading the associated Wikipedia article.