In a step that should help make the Internet safer for consumers, anti-virus giant Symantec on Wednesday will introduce a protection system designed to anticipate new ill-meaning programs that try to steal onto your computer.
For decades, anti-virus protection has worked by reacting to new ill-meaning programs. Researchers rush to identify bad code, then create and distribute filters for it. But cybercriminals have got so fast at escaping the latest filters that protection often comes too late.
Symantec’s new system, called Quorum, continuously predicts whether any new program that attempts to run on your PC is good or bad. It then takes steps to isolate the bad code. "We’re closing a major gap the bad guys have been using to deliver their ill-meaning software," says Rowan Trollope, senior vice president of consumer products.
Symantec becomes the fourth major anti-virus firm—and the largest—to add predictive capabilities t
A. researchers didn’t create filters in time
B. filters were soon escaped by cybercriminals
C. ill-meaning programs were too complex
D. cybercriminals were smarter than researchers
In a step that should help make the Internet safer for consumers, anti-virus giant Symantec on Wednesday will introduce a protection system designed to anticipate new ill-meaning programs that try to steal onto your computer.
For decades, anti-virus protection has worked by reacting to new ill-meaning programs. Researchers rush to identify bad code, then create and distribute filters for it. But cybercriminals have got so fast at escaping the latest filters that protection often comes too late.
Symantec’s new system, called Quorum, continuously predicts whether any new program that attempts to run on your PC is good or bad. It then takes steps to isolate the bad code. "We’re closing a major gap the bad guys have been using to deliver their ill-meaning software," says Rowan Trollope, senior vice president of consumer products.
Symantec becomes the fourth major anti-virus firm—and the largest—to add predictive capabilities t
A. It continuously updates the anti-virus database in your computer.
B. It reacts to the ill-meaning programs once they run on your computer.
C. It evaluates every new program before it can run on your computer.
D. It automatically refuses unfamiliar software to run on your computer.
Does calorie information help consumers make healthier choices Not always. But a new study finds that when calorie counts are presented in an easily understandable way, even teenagers--those experts in never listening to useful advice-can be persuaded to avoid high-sugar choices.
For the new study, researchers from the Johns Hopkins Bloomberg School of Public Health went to corner stores in predominantly black neighborhoods of Baltimore and posted signs showing calorie information about sugary drinks on refrigerated beverage cases.
The researchers tested three different signs, each brightly colored, in four corner stores. They collected data for 1,600 beverage purchases by black teens including 400 sales during a no-sign baseline period.
Overall,they found, teens were 40% less likely to buy a sugary drink after seeing any of the posted calorie counts than when they were given no information. They were even less inclined to buy a soda or a fruit drink after
A. High-sugar drinks do great harm to consumers.
B. Calorie labeling is strongly objected by some experts.
C. Calorie labeling properly presented can play a guiding role.
D. Teenagers tend to buy high-sugar drinks regardless of useful advice.
Motherhood may make women smarter and may help prevent dementia in old age by bathing the brain in protective hormones, US reseachers reported on Thursday.
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s. University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
"Our research shows that the hormones of pregnancy are protecting the brain, including estrogen, which we know has many neuroprotective effects," Kinsley said.
"It’s rat data but humans are mammals just like these animals are mammals," he added in a telephone interview. "They go through pregnancy and hormonal changes. "
Kinsley said he hoped public health officials and researchers will look to see i
A. Baby rats.
B. Animals.
C. Old rats.
D. Grown-up rats.
我来回答:
