How can the authenticity of an iMessage be established? (Amber Heard v. Johnny Depp)
One issue in Amber Heard’s lawsuit against Johnny Depp is the authenticity of some iMessages. The Daily Mail has a story laying out both sides: “Johnny Depp’s assistant claims his text messages apologizing to Amber Heard for the actor’s actions are FAKE and have been heavily doctored.”
iPhones have all kinds of crypto. Is there a cryptographic hash on a screen shot such that if Amber Heard were to produce the original files we would be able to tell that it was an authentic screen shot from a particular date from either a particular iPhone or at least some iPhone?
What about up in the Apple server farm? iMessages are encrypted but can Apple read them all? Does Apple save them all?
If these (very convenient for a divorce plaintiff) messages are not authentic, how would Amber Heard and her legal team have gone about fabricating the depicted images? Straight up artistic work in Photoshop? Or better to engage in an exchange with a trusted associate and then use Photoshop to cut out and substitute the central portion of the screen?
Update: A friend pointed out that there are multiple web sites, e.g., www.ios7text.com, that will generate screen shots like the ones that Amber Heard may be presenting as evidence. Here’s an example that I created:
In fact, I wonder if this is the service that was used to create the ones offered by Amber Heard and her attorneys. My actual iPhone shows “Details” in the upper right, but ios7text.com defaults to “Contact” in the upper right, as do the screen shots displayed by the Daily Mail. My iPhone shows a microphone icon at bottom right, but ios7text.com and the displayed images show the word “Send” at the bottom right.
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