First, to help you in the future on the forums, you should start at the top level of the Communities site, here:
https://discussions.apple.com/community
and then use the categories listed to drill down to the product you're asking about. So you would choose "iPhone". Then, where you see "Ask your question", type a BRIEF precis of your question (just a few words, since this becomes the title of the post), click "Submit my question" and write the full question. This will create a new question.
You've replied to my 2-year old question, in an unrelated topic (this topic is about iCloud), which somebody (Paula4lsu) has posted drivel to at the end ... meaning that your problem will get very little help from people who can actually help.
But I'll try.
Apple devices - iPhones, iPads and iPod Touches - run an operating system which is extremely secure. They cannot run any program which is not installed through the official Apple App Store. That means no viruses, no spyware, of any kind. Any new phone has this security built in.
Jailbreaking is a process where you can circumvent this security and install whatever you want, from all kinds of sources, and not limited to the App Store. Jailbroken devices can have spyware and other programs of malicious purpose installed on them. If a phone gets jailbroken, yes, it's susceptible to these programs.
If your phone is not jailbroken, you have nothing to worry about in terms of malware. A phone cannot be jailbroken remotely - somebody has to have physical access to it. If you have any suspicion that it might be jailbroken, you can restore its software through iTunes, which will bring it back to factory conditions.
http://support.apple.com/kb/ht1414
Now, malware is not the only way that you can be susceptible. In your situation, I would strongly recommend that you immediately change all your passwords - for your AppleID, for every email account that you have, for any other social service such as Facebook, anything that you use on the internet, change its password. Change email passwords first, since passwords for other services can usually be reset through email. Change AppleID password next, and set up two-factor authentication:
http://support.apple.com/kb/ht5570
Change passwords for any banking/financial/personal websites you use. Also change the admin login password for any computer you have (Mac or PC).
Do not use the same password for everything. Do not use a password that someone else can guess. If you don't use a password manager, write the passwords down in a physical book, and hide the book in your house.
By making sure your iPhone is not jailbroken, by securing the passwords for your AppleID and email accounts, and by ensuring that your iPhone does not leave your presence, you have the best security you can for your device. I can tell you that if those three steps are in place, you will not be in any danger of malware or security threats on your phone.
Matt
