I just had two thoughts about the facial recognition features that come with Alienware/Dell....
1) Surely someone can use a photo of you and hold it in front of the camera?
2) What if you have a twin.![]()
It would be interesting to see if number 1 works, does anyone fancy giving it a try, I dont have my machine yet.
Leemo
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my friend tried to use a picture of me on his phone, it didn't work.
I have a twin, and his face works -
a picture won't work if you have a twin let your beard grow for 2 month he will be forced to wait at least 2 month befor being able to open the laptop
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haha, i'm not sure if that's genius. You have to keep with the same beard if you wanna use your own laptop ;]
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In general only very specific types of photos will allow access. Typically these are photos taken from the same perspective and lighting as the webcam on the computer. Unlike other face recognition, FastAccess rejects most other types of photos and video.
Of course all computer security methods including biometrics have weaknesses. If a successful photo threat is likely (fairly uncommon due to the inherently strong rejection), FastAccess provides the option for very convenient and extremely secure Dual Factor security without requiring lengthy and frequent password entries.
As this is a fairly in-depth topic, I'd recommend reading Sensible Vision's (the manufacturer of FastAccess and Alienware - for whom I work) FAQs for more detailed information. I listed a few of of the most relevant below and there are many more on the site.
Can someone break into my account using a photograph of me?
Under what conditions COULD someone use a photograph of me to gain access to my account?
What about a brute force photo attack?
What about twins?
What is Dual Factor (or Face + Password) security and why would I need it? -
, but actually no you wouldn't. FastAccess automatically (and uniquely) learns and adapts to changing appearance and environment so as to maintain both high security and good recognition performance.
What happens if I put a phone to my ear, take off my glasses, grow a beard or otherwise change my appearance? -
yup if you grow your beard day per day the system will adapt if you shave clean the system won't but you just have to enter your password again
ow btw svrep i don't knwo what happened to aliensens but there is no way to make it start on my computer and i'm back on official alienware bios -
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I noticed that it goes by specific lighting conditions. I can't log in using my own face (not my spares) at places I haven't been before.
I assume the reason pictures don't work is because they couldn't really match the exact lighting profiles it's used to. -
As a side note, we ARE working on the next generation of recognition algorithm at present. One of the goals of this algorithm is to be more tolerant of lighting changes without compromising the accuracy and photo rejection that our users expect.
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I have new bug with FastAccess: it does not lock the display if I'm not in front of it anymore, but if I play any video in Firefox (youtube, southparkstudios.com) in full-screen mode - after changing player window from full-screen back to normal - it locks the display and tries to find my face.
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i have a worst one i fixed the old issue where i could not get aliensens to work it needed a bios flash and a reformat but i got something new i changed my user folder to the D drive and now aliensens cant unlock the laptop if im adrealy logged in but the screen locked it keep saying wrong password or user name and show 2 accound with the same user name
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What is "Enable Full Screen Program Detection"?
For the first part (the failed desktop locking), I'd first like to confirm what security mode you're running in before making any other suggestions. Assuming that you're in Continuous Security mode, then please also confirm that you were recognized or that your face was in clear view when logging in. You can tell that this was the case when the "FA" icon in the system tray is green (not red or blinking green and yellow). -
That said, I'd recommend a de-install and re-install of the command center to see if that resolves anything. With all the movement of user folders, changing of bios's etc., we'd definitely need to start with a clean slate, so to speak, in order to pin anything down. Contact me directly if you would like further assistance.
Facial Recognition Flaw?
Discussion in 'Alienware' started by mortoleeuk, Nov 30, 2010.