That feature was introduced in .NET from the beginning to prevent security attacks coming from network locations.

当初之所以在.NET中引入这个特性，是为了阻止从网络上进行的安全攻击。

youdao

The Security Council session focused on nuclear non-proliferation and disarmament, and the resolution urged action to prevent the spread of atomic weapons.

VOA: standard.2009.09.24

President Barack Obama described the incident as a "systemic failure" of America's security apparatus, and U.S.officials have pledged to do what it takes to prevent a recurrence.

VOA: standard.2009.12.30

Senior Police Superintendent Vishnu Naidoo says security preparations for next year's World Cup are even more extensive and include steps to prevent undesirable foreign elements from disrupting the event.

VOA: standard.2009.06.12

To try to prevent security worries clogging cross-border trade, American customs officials may be posted throughout Mexico.

ECONOMIST: Mexico, the United States and drug gangs

On that fateful day, among the panic-stricken mob at the Havana airport, his mother took off her jewelry and handed it to Jorge's tearful grandmother to prevent security guards from confiscating it.

FORBES: Latino Connection

Journalists will have to hand in their mobile phones to Vatican security staff to prevent them tweeting or communicating with the outside world until the morning session has ended and they have briefed the numerous members of the Vatican Press Corps waiting for information at the Press Centre.

BBC: Vatican embarrassment as Pope's butler goes on trial