● Personal firewall is a technology that helps __（66)__ intruders from accessing data on y

● Personal firewall is a technology that helps __(66)__ intruders from accessing data on your PC via the Internet or another network, by keeping __(67)__ data from entering or exiting your system.

Hackers do not just target national security organizations for __(68)__: They want your tax returns, network passwords, or bank account numbers. And you do not want the FBI kicking in your door because someone hijacked your PC to __(69)__ in the latest denial-of-service attack on the Internet. Now that “always-on” broadband connections such as cable modems and digital subscriber line are becoming more popular, home users are at risk. Fortunately, you can protect your data.

Firewalls can block __(70)__ attacks and protect your PC from outside threats.

(66)

A. allow

B. prevent

C. invite

D. get

(67)

A. authorized

B. refused

C. denied

D. unauthorized

(68)

A. attacks

B. aggression

C. help

D. repair

(69)

A. enlist

B. go to

C. participate

D. attach

(70)

A. malicious

B. friendly

C. neighborly

D. goodwill