The recent security flaw discovered by popular security expert and jailbreak extraordinaire 'pod2g' reveals a serious security flaw in all Apple phones ever sold in the world, which enables hackers and other malicious users to break into your messaging system - leading a successful sms spoofing.
The security flaw also provides access to your personal information and can be used in many ways for further hacktivities.
According to the researcher, the flaw has been there even since Apple release it's first iPhone in 2007 and has not been fixed yet. Using the flaw hackers could spoof their identities via text and send messages asking for private information (by pretending to be from a users' bank, for example) or direct users to phishing sites.
The user who is the target will be under impression that they are getting the messages from the legit source and would not even consider it as a scam or hacking attempt.
…In the text payload, a section called UDH (User Data Header) is optional but defines a lot of advanced features not all mobiles are compatible with. One of these options enables the user to change the reply address of the text. If the destination mobile is compatible with it, and if the receiver tries to answer the text, he will not respond to the original number, but to the specified one.
Apple has a good reputation on fixing the security flaw on their system, and a patch or OS update will soon surface for the iOS products. In the meantime, you need to be careful and must verify the messages' asking for your personal informations.