A couple of weeks ago, I was on a two-day business trip to Kansas City. As usual, the moment my plane landed I turned on my iPhone and gave my wife call to let her know that I had made it to my destination safely. I told her I'd text her as I got my rental car, and then call when I got to my hotel.

Heading out the door of the terminal to catch the rental car shuttle, I reached into my pocket for my iPhone only to find that it was gone. I did a quick search of my other pockets, my briefcase; anything within reach. Nothing. The next step involved running back into the terminal, talking to the folks at United to see if they could have someone check my seat on the airplane. They did, with negative results. I gave them my name and home phone number so that they could call me if it was found on the airplane when the cleaners did their job, and then I headed on to collect my rental car and go to the hotel.

The next morning, I called the lost & found office at the airport, and nothing had been turned in. Since I depend so heavily on my iPhone for my work, I ended up going to the nearest AT&T store to buy another phone. Read on to see what I learned from this experience.

There is no shortage of stories here on TUAW (and elsewhere) that extol the benefits of backing up your data. Apple even makes it ridiculously easy to do so -- with Mac OS X 10.5, Time Machine, a blank drive, and some spare time, you're set.

Nevertheless, despite your best efforts, there are unforeseen circumstances where you might need to utter those dreaded words: "I need to send this for data recovery." Perhaps your airplane landed in the Hudson river, and your waterlogged laptop was stuck with your luggage. Perhaps an external disk is suffering from a manufacturing defect. Perhaps your backup disk is the disk that failed.

Unfortunately, there is no way to sugar-coat this: Data recovery is a painful, patience-trying, and absurdly expensive process. But if it's the only way to recover mission-critical data, it could be your only option.

It was for me.

On your iPhone or your iPod touch, when you press the Home button, there's a nice little animation that takes you back to the home screen.

To create that animation, your iPhone takes a screenshot of whatever it is you're doing, and uses it for the transition. Sounds innocent, right?

Not so much, says data forensics expert Jonathan Zdziarski (thank you, clipboard). The screenshot is presumably erased from the iPhone after the application closes, but is any digital file really gone after you delete it? Survey says no.

Forensics experts have mined for these screenshots, successfully recovering evidence against criminals accused of rape, murder, and drug deals. They can also recover data from the iPhone's keyboard and web caches, too.

In his presentation, Zdziarski also demonstrated how to bypass an iPhone's passcode in order to own the device and access personal data. Time-consuming? Sure (it took JZ about an hour and involved a custom firmware build). Impossible? No.

As with all things digital (and networked), your privacy is largely illusory. Time to go Don Draper on this one and just use Field Notes books, my stack of business cards, and the rotary dial.

[Via Wired.]

Thanks, Kenny!

We've all been there. The external disk you bought three or four years ago, which has been working great so far, starts to click. And it's not a good click ... it's the kind of click that gives you the spinning beach ball of death.

Poopie.

Sounds like it's time to get the data off that disk, and toot sweet, if you pardon my French. You buy a new disk, and you start copying. But then what happens? The Finder throws up an error saying it can't copy a certain file or folder, and it's 20 folders deep in an old archive of client data. The Finder stops the copy, and you have to figure out where the problem is buried, fix it, and try copying again. Meanwhile, seasons pass, civilizations rise and fall, and your fingernails start to grow into your keyboard.

Double poopie.

So what do you do? Believe it or not, the Terminal can be your friend to quickly copy damaged data, and power through disk errors. The data may still be damaged, but heck if it won't try to copy it somewhere safe.

After the jump, find out how to recover your data, and fast.