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Comment Re:RAM error? (Score 1) 277

On investigation a G was transformed to a W a difference of one bit.

That is unlikely due to the way magnetic media actually stores data. Bits are stored as changes in polarity. No change in polarity means 0, change means 1 (or vice-versa).. and for many lowlevel format types, all bytes in a sector are xored with the previous byte. Change the polarity of 1 tiny part of the disk will change at least 2 bits, and corrupt the entire sector.

So a disk that's +++-+++ is actually 001100. Change that - to a +, and it becomes 000000. In order to change just 1 bit, you have to reverse the polarity of every bit in the sector after it... like trying to untwist a rope from the middle.

Comment Re:For the americans (Score 2, Interesting) 305

After watching the game I reassured my thoughts about American Football... oh how I would love that the "tough" American Football players had a go against one of these Rugby teams. They will run scared!

Richard Tardits, the frenchman who played both American football in the NFL as well as rugby has this to say:

"two completely different types of pain. American football is the more violent, rugby is the greater physical challenge".

Run scared indeed.

Comment Re:Trojan for Mac had to appear some day... (Score 1) 321

. When you install something on a Mac (and windows depending on your settings) you need to type in a password and specifically give permissions to do so.

Most mac users don't. They have write access to everything in /Applications by default. They just drag the program into the Applications folder. If the program then decides to replace iTunes with a backdoor or whatever, it can without the user's knowledge.

Comment Re:Spamhaus was right to ignore it... (Score 1) 378

Weren't doing anything illegal in their own country.

You sure about that? The UK's libel laws are far more strict than the US's. In the US, the truth is an affirmative defense against libel.. not so in the UK. Calling someone a spammer in the UK might indeed be considered libel, regardless of whether it's true or not.

Comment Re:Fool it with a picture? (Score 2, Insightful) 164

Well, the technology may not be there yet, but conceptually, the strongest authentication available is some combination of voice and face recognition, as done by a human.

If you consider just a camera (with no additional sensors spread over a large area), it is a crappy concept. Its the kind of concept that stops being viable once it starts being possible.

Only an awesome 3D camera with an extremely wide angle would not fall into the "just use a printed piece of paper" method. And that non-existent awesome camera would still fall for several other methods, such as well-built models of your face. Even if you're using awesome stereo vision from 2010, the same printed piece of paper in front of any cheap model of a human head will do.

And the kind of AI needed for a computer to detect a person using only image and sound is HARD. So hard that when we actually have this kind of AI, the cheap tech needed to fool it (the hell, to fool real people) will already be available.

eg, if you want a new passport, in England, you have to take a picture, and get someone you know to certify it's a true likeness of you. How does that person know it is you? Well, by seeing how you look like, and listening to your voice. I guess?

The picture allows humans to recognise you. It is meant for humans and humans only.

So, from a theoretical point of view, this system is I feel sound. Just, maybe the technology is not quite there yet ;-)

It depends. If you can afford distributing sensors all over the place, it is POSSIBLE to avoid cheating. You can add cameras and distance sensors over a large area and youll stop most forms of cheating. High-tech cheaters can get away by standing in front of the system and using a special set-up to project a different image inside the camera.

If all you want is a small sensor embedded on a laptop computer, its a stupid concept.

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