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ben20 said:

The triplets kids just hacked Face ID, see the video at WSJ: https://www.wsj.com/articles/iphone-x-how-we-tested-and-tricked-faceid-1509465766

The WSJ video was the first one which tried to be a bit more systematic but even then, there were some mistakes. 
- Did not unlock the iPhone X; putting on a fake mustache, picture on cardboard or on another phone. A latex duplicate mask of a person (put on someone else with eye holes). A fraternal twin test. 
- The triplet young boy test was better than what I've seen before because the 1st triplet who registered the phone was out of the frame of the video. Better. 
But, there were two triplets together in front of the iPhone X when it unlocked. 
Which triplet unlocked the phone? Did one triplet's face fail and another one was successful? Unknown. 
- The triplet test showed that Face ID could be fooled but the WSJ test was done in a sloppy way.  

franklinjackcon said:

The Verge seemed to complain about Face ID outdoors. Any thoughts AI or they are just being picky?

My thoughts; the Verge was being picky. 
The Verge test in sunlight had the iPhone X at belt height next to the belt. That logically would be the edge of the range of the Face ID system. 
After all, at belt height / next to the belt this is testing the unlock system while looking up at a person's chin. 
But this is not Chin ID. It is Face ID.
Logically, if in bright lighting, the iPhone X should be moved up to eye level so that the system can clearly recognize the face of the user.
As far as I know the iPhone X will work at eye level even in bright sunlight.   

melgross said:

I’ve now seen a whole bunch of first day video reviews. Mostly, Face ID works as promised. One reviewer did find that in bright sunlight, it didn’t always open. Turning away from the sun seems to solve the problem. Other reviewers working outside, didn’t mention it as a problem. All said that it was as fast as the first gen Touch ID, but not quite as fast as the 2nd gen. All were impressed by the speed. None who tried, could fool it with a photo. A couple said that it takes a bit to get used to it, but then, no problem.

i can’t wait for full reviews to come out, though I’m annoyed that anandtech, by far, the best reviewer of computer related stuff, hasn’t yet come out with their iPhone 8/8+ review.

The Verge test in sunlight had the iPhone X at belt height next to the belt. That logically would be the edge of the range of the Face ID system. 
After all, at belt height / next to the belt this is testing the unlock system while looking up at a person's chin. 
But this is not Chin ID. It is Face ID.
Logically, if in bright lighting, the iPhone X should be moved up to eye level so that the system can clearly recognize the face of the user.
As far as I know the iPhone X will work at eye level even in bright sunlight.   

dabrace1984 said:

CNN did a test with two identical female twins and they were able to beat the Face ID security.

http://money.cnn.com/video/technology/2017/10/31/iphone-x-first-impressions.cnnmoney

It was a worthless test. 
Why? 
1. One twin (twin #1) registers her face on the iPhone X Face ID. 
2. The iPhone X is locked by the reporter while standing next to twin #1 (who has her eyes open). 
3. Then the reporter moves the iPhone X in front of twin #1 to twin #2. The twins are standing next to each other. 
4. Twin #1 had her eyes open and was looking at the phone while it was given to her sister. 
5. Who unlocked the iPhone X the second time? 
* It is impossible to know because twin #1 was looking at the locked iPhone X while standing next to her twin sister.
- This CNN test was nonsense.
But of course those who want to criticize Apple will be fooled by bad testing like this.  

newtonrj said:

Okay,  YouTube as a marketing vector, got it.  But wouldn't it make sense to not publicly fire employees whose daughter does the same thing.  I get that she (and he) were not part of the marketing community, but insn't that just what AAPL wanted with its multiple reviews on YouTube, a viral hit?  Her hit count was above 3.7M views for her apology https://9to5mac.com/2017/10/30/apple-reportedly-fires-engineer-whose-daughter-shot-iphone-x-video-from-the-apple-campus/ 

-RJ

It has been reported that the fired Apple employee had his daughter release confidential employee codes over YouTube. 
That is a violation of not only the Apple NDA but could lead being fired at many companies which would not want confidential co-worker information to be released. 
- I don't see that problem being reported with other people who have shown their iPhone X in the wild.