Erase an iPhone properly


A fundamental problem with flash memory has just gone mainstream. A detective successfully recovered data from a refurbished iPhone purchased from Apple. Flash memory controllers write to blocks randomly so using standard secure erase techniques are no guarantee that all of the storage space will be written.

[Rich Mogull] has posted a method that should wipe out almost all remnants of your personal data. You start by restoring the iPhone in iTunes and turning off all the syncing options. Next you create 3 playlists large enough to consume all of the phone’s storage space. Sync each playlist in turn and your residual personal data should be obliterated. All that’s left to do is sit back and wonder when the first article about the MacBook Air SSD being impossible to securely erase will be published…

Nintendo DS homebrew guide


Running homebrew applications on the Nintendo DS is easier than ever these days, but if you didn’t get into the scene on the ground floor, knowing where to start can appear much more daunting than it actually is. The great thing is: you don’t need to crack open your DS and void the warranty. There are numerous peripheral options that handle this easily with no hardware mods required. DS Fanboy has served up a useful guide to the most popular peripherals and homebrew software. They explain the pros and cons of each peripheral along with the installation and uses of a few popular homebrew apps.

Already well versed in the homebrew arts? Then try some hacks we’ve featured previously, like building a serial interface or installing DSLinux and loading it with with software like this on-screen qwerty keyboard.

Multitouch project roundup

It seems that ever since Microsoft unveiled the Surface table the concept of multitouch has really started to snow ball. We’ve been fans ever since seeing [Jeff Han]’s original research in this area. Earlier today we looked at a multitouch rear projection TV project but what else is out there? After the break, we’ve got several multitouch projects you might be interested in.

Continue reading “Multitouch project roundup”

Phlashing denial of service attack, the new hype


Imagine how surprised we were to discover that by accidentally bricking our router we were executing a brand new attack: Phlashing Denial Of Service (PDOS). This week at EUSecWest, researcher [Rich Smith] will present the theoretical PDOS attack. Instead of taking over control of an embedded system, the attacker turns it into a nonfunctioning brick by flashing it with a broken firmware. Anyone who has flashed a device knows the danger of interrupting the procedure.

Continue reading “Phlashing denial of service attack, the new hype”

Multitouch rear projection TV


[Christopher Jette] did a amazing job converting a 56″ rear projection television into a multitouch display. His original inspiration came from this drafting table project. The screen is a large sheet of 1/2″ acrylic with a screen material attached to the back side. The screen edge is surrounded by 168 IR LEDs. When a finger tip touches the surface it scatters the LEDs’ IR light. A webcam sees this scattered light and determines where the fingers are. Inside the box is a standard video projector. This is a great reuse of old equipment and we love to see a hobbyist making up ground where manufacturers aren’t. For more info on multitouch projects, we suggest the Natural User Interface Group. Here’s a video of [Christopher]’s display in action:

Continue reading “Multitouch rear projection TV”