Connecting the iPhone to a laptop through a USB write-blocker is one way to forensically examine the device. *

Photo: Derrick Donnelly, Blackbag Technologies * Technophiles may love the iPhone, but you criminals? Watch out. The iPhone may reveal more about your misdeeds than you realize.

Derrick Donnelly, chief technology officer of Blackbag Technologies, a Silicon Valley-based company specializing in Apple forensic solutions, is tempted by the rich array of potential evidence an iPhone might contain.

Will its data favor the defense or the prosecution? "There is more information in there than your average cell phone," explains Donnelly. "The ease of use lends itself to more use … and more use creates more artifacts."

The iPhone's web, e-mail and phone functionality – combined with its 4- or 8-GB storage capacity – means it can serve as a window into the personality, lifestyle, social circle and actions of the user. "Even though there might not be a smoking gun right in there," explains Donnelly, "a lot of these smaller pieces could add up to a bigger piece that could lead you to further evidence."

But not every forensics expert is convinced. "The iPhone is evil," says Amber Schroader, CEO of Utah-based Paraben, a leader in digital-forensics software development. "It's Mac OS X, and it's a completely closed system."

In other words, it's not easy for a forensics team to guarantee that the data extracted from an iPhone has not been tampered with. The result is that juries may find reasonable doubt in how that data was extracted.

The digital-forensics industry is dominated by PC experts, mirroring the larger percentage of PC users in the marketplace. Mac forensic analysis is considered a highly specialized service. "To know the iPhone is to know the Mac or vice versa," explains Donnelly. "Because it's a different file system and a different operating system, right off the bat the things you're usually looking for are not in the same places and they are in a very, very different format."

But even Mac experts like Donnelly are struggling with how to get the data off the iPhone's closed system without altering the data by turning on the device. Currently, the iPhone is not compatible with existing forensic software and data-extraction systems. Forensic experts may be left with old-school techniques like photographing data as it is displayed on the screen itself – as if it were a yellow-taped crime scene.

Finding a laptop or desktop computer on the scene could help significantly. "You might not be able to get the information off the iPhone," says Donnelly, "but you may be able to get other devices that the iPhone was connected to." If the user had uploaded their phone's data, analysts may find copies on the linked computer.

The vast amount of personal data the iPhone can store and personal habits it can track means it has the potential to say a lot about the user. But the first challenge may be getting this closed-mouthed phone to talk.

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