How to protect my credit card transaction data from hackers proxy server? [closed]

If the site is unsecured, i.e. does not use SSL at all, then your information must travel to that server in plain, and anyone capable of listening in on that last hop will have your data. That might be a bad proxy server, introduced e.g. through some form of cache poisoning, but it might as well be some maintainer of an intermediate transport network listening in on the traffic under his control.

So I'd suggest not to transmit credit card information over a plain connection, ever.

EDIT: It is not secure to transmit credit card information over a plain connection.

If your transacting site is using SSL, but your are not sure is that safe; then Utilize OCSP (online certificate status protocol) methods.

• Protect yourself from visiting web sites featuring fraudulent security.
• Make sure you are using a browser that checks for revoked publisher and server certificates – includes CRL (certificate revocation list) and OCSP (online certificate status protocol) methods.
• Go into your browser settings and make sure these safeguards are turned on.
• In Firefox you will find the CRL and OCSP settings under Tools -> Options -> Advanced -> Encryption -> Validation.
• In Explorer you will find options to check for publisher and server certificate revocations under Internet Options -> Advanced -> Security

For more #

• http://blogs.thawte.com/2011/03/stay-secure-%E2%80%93-update-your-browser-turn-on-your-ocsp/