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Apps make iPhone vulnerable to attack
Posted: 04-Aug-2011 [Source: CNN]

[Apple introduced an important security feature in the latest version of the iPhone's software, yet it is rarely used by third-party applications, leaving users vulnerable to a targeted attack. ]

David Goldman -- The feature, known as address space layout randomization, or ASLR, randomizes key pieces of data in the iPhone, making it difficult for attackers to find where they're stored.

One component of ASLR, known as position-independent executable, or PIE, hides executable code that hackers can use to carry out attacks. When enabled, those tools can help protect the iPhone from being remotely exploited by a hacker.

All of the applications that come pre-installed on the iPhone running the latest software version, iOS 4.3, use both ASLR and PIE. But only the iPhone 3GS and iPhone 4 have access to iOS 4.3. In the U.S., the update is only available for AT&T (T, Fortune 500) customers and is not yet on Verizon's (VZ, Fortune 500) iPhones.

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