There are a number of nefarious sites and services that allow you play a tricks on your friends by spoofing their cell phone—that is, texting or calling under the guise of another person. A new report by security researcher and iPhone jailbreaking expert, pod2g, discovered that the iPhone's messaging service posses a security flaw that makes it especially susceptible to such attacks.
According to pod2G, the issue lies with the way iOS deals with User Data Header (UDH) info:
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In order for someone to maliciously exploit this hole, the person would need to know the name and contact info of someone already in a person's phonebook. But once they do, pod2G says a hacker could use phishing attacks to get people to click links that would send them to harmful sites.
