Look in the upper left corner of the URL address line, if you see 'https', the page is secure and you know whatever data you enter onto the page will be sent across the Internet securely.
It is extremely unlikely the information can be intercepted and used by a third party for illegal reasons.
If the characters you see however, are 'http', the web page you are viewing is not secure.
At the bottom of this page you can click the Security Seal to check information about the CareNet Security Certificate.
You can be assured that CareNet will not disclose any information provided and the information you send will be secure.