Self-study
Computer security experts correctly maintain that computer passwords are a less secure means of protecting one's information than are alternative security options like fingerprint scanners. ███ ████████ █████████ ███ ███ █████ ██ ██ ████████ ██ █████ █████ ███████ ███████ █████ ███ ███████████ ████████ ███████ ██████ █████████████ ████ █████████ ██ ███████ ███ ████ ███ ███████ █████████ ████ ██ ████ ██████ ████████ ██ ████ ██ ███ ███████ ██████████
Summary
The author concludes that computer passwords are not going to be replaced by alternate security options like fingerprint scanners. Why? Because in order for those options to replace passwords, they must become standard on most of the world’s computers. In addition, those other options are a lot more expensive than computer passwords.
Missing Connection
We can prove that computer passwords won’t be replaced by the alternative options if we can show that the alternatives won’t become standard on most of the world’s computers.
One way to prove that would be to establish that if the alternatives are a lot more expensive than computer passwords, then they won’t become standard on most of the world’s computers.
7.
The conclusion drawn above follows █████████ ██ █████ ███ ██ ███ █████████ ██ ████████
a
There are ways ██ ████ ████████ █████████ █ ████ ██████ █████ ██ ██████████ █████ ████████████
(A) doesn’t establish that the alternative methods won’t become standard on most of the world’s computers. So (A) doesn’t establish that the alternatives won’t replace computer passwords.
b
Any security option ████ ██ ██ ████ █████████ ██ ██████ ████ ████████ █████████ ████████ ████ ████████ ████ ████████ ██████████
(B) concerns alternatives to computer passwords that are not more expensive than passwords. But those aren’t the alternatives we’re talking about. (B) doesn’t establish that the more-expensive alternatives won’t become standard on most of the world’s employers.
c
Most computer security ███████ ██ ███ ███████ ████ ████████ █████████ ████ ██ ████████ ██ ██ ███████████ ████████ ██████ ███████ █████
What experts believe doesn’t establish that the alternatives won’t become standard on most of the world’s computers. Maybe what the experts believe is wrong?
d
Security options that ███ █████████████ ████ █████████ ██ ██████ ████ ████████ █████████ ████ ███ ██████ ████████ ██ ████ ██ ███ ███████ █████████ ███████ █████
(D) establishes that the more-expensive alternatives won’t become standard on most of the world’s computers anytime soon. In connection with the last premise — which tells us that in order to replace passwords, those options have to become standard on most computers — (D) establishes that those options cannot replace passwords anytime soon.
e
As soon as █ ████████ ██████ ██ █████████ ████ ██ ███ █████████████ ████ █████████ ██ ██████ ████ ████████ ██████████ ████████ █████████ ████ ██ ████████ ██ █ ████████ ████████
(E) establishes a condition under which computer passwords WILL be replaced. This doesn’t establish that computer passwords will NOT be replaced soon. If you think (E) does, you’re confusing sufficiency and necessity.