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  3. Are passwords out-of-date? It is starting to seem like it. Everybody hates them. These days a typical Internet user has dozens o

Are passwords out-of-date? It is starting to seem like it. Everybody hates them. These days a typical Internet user has dozens o

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问题     Are passwords out-of-date? It is starting to seem like it. Everybody hates them. These days a typical Internet user has dozens of online accounts. If you really want to bu safe, you need to generate a different password for each one, and each password needs to extremely complicated, with a mix of letters, symbols, and numbers. Who can keep all stuff in their head?
    Most people do not bother. Some just create one password and use it everywhere. Others might have a few password—one for all their banking and financial stuff, one for their social networks, one for email accounts. Problem is that if one site gets hacked, the bad guys now have the password you use elsewhere. There attacks are happening so frequently there days that you might as well assume there is no way to keep a password secret.
    Computer scientists realize the system is broken, and they are looking for alternatives. But most attempts have not been very good. Fingerprint readers require special hardware, and many people find them scary and don’t want to use them. Smart cards can be lost or stolen. Scientists have tried all sorts of other approaches, but they end up back with pass words. They are the least worst in a series of bad choices.
    Markus Jakobsson, a researcher in computer science, has produced Something he calls "fastwords" . Instead of inventing a password, you join three Simple words that come from a thought known only to you. If one day you were Driving to work and ran over a frog that ended up flat, you might choose "frog word flat". You can enter the three words in any order, and the system still knows that you are you. If your mind goes totally blank, the fastwords system will tell You one of the three words, which should enable you to remember the original Thought and thus the three keywords.
    The fastwords system represents a step in the right direction, but it is not the promised land. Someone, somehow, needs to come up with something radically Different—and radically better— then what we have today.  
Compared with password, other alternatives are even more____.
选项 A、complex
B、confusing
C、expensive
D、troublesome
答案D
解析
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