2019年6月大学英语四级听力VOA慢速英语练习（第六套）
NEW YORK—
Cybersecurity criminals are more "sophisticated, bold and resilient" than ever, according to a new study by U.S. computer networking company Cisco, which revealed major flaws in businesses’ attempts to thwart and recover from attacks.
Among the shortcomings, Cisco found a 10 percent drop in up-to-date security infrastructure reported by organizations over the course of a year. The company analyzed 115,000 devices; 92 percent were running software with known vulnerabilities.
Cisco Principal Engineer Jason Brvenik told VOA attackers are fairly indiscriminate in determining whom to target, instead leveraging opportunities to increase efficiency and profits.
Cyberattacks
四级听力练习 "It doesn't matter if they're attacking a person for a cyber ransom or a business. What they do is they find out what they can leverage and then they use it," Brvenik said.
He said defenders, as they move toward more continuous analytics models, are able to more quickly detect an attack and outsource instant responses.
"Numerically, we see that as an industry, it's a 100- to 200-day estimate for the detection of a breach, but more modern technologies as people deploy them are able to push that number down to a matter of hours," he said.
As of May 2019, Cisco said it reduced the median time to detect threats within its networks to roughly 17 hours.
The fight against cybercrime has opened a largely untapped job market for cybersecurity practitioners, which Forbes reports is expected to grow from $75 billion in 2019 to $170 billion by 2020.
Demand for professionals
Tara Sinclair, chief economist of Indeed, a global job site company based in the U.S., said employers’ security concerns have led to a large increase in demand for trained professionals in the field.
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