Failure to consider security can lead to ill-considered decisions from which there is no turning back; retrofitting security after the fact can vary from difficult to nearly impossible.

不考虑安全性会导致作出错误的决策，从而造成不可挽回的损失；错误决策后再加强安全措施会变得非常困难甚至不可能。

youdao

Still smaller versions the size of specks of salt can be added to paint, turning entire surfaces into wireless sensors that can detect motion or act as smoke alarms or security systems.

更小一点如盐粒大小的传感器可以被掺入油漆中，把整个表面变成无线传感器——可以侦测物体的运动或是担当烟雾警报器、安全系统。

youdao

That way, even if the program has defects (whose doesn't?), you're likely to keep the defect from turning into a security nightmare.

这样，即使程序具有缺陷(谁能无过？)，也可能会避免将该缺陷转化为安全事故。

youdao

With much of the tribal region dominated by several Taliban factions, the government is turning to an old practice of striking agreements with local tribal militias, called lashkars,to handle security.

VOA: standard.2009.03.26

Turning to security for the United Nations in Iraq, he said that the distinct entities of the Multinational Force, notably the Georgians, Romanians and South Koreans, continued to provide security for the United Nations in Baghdad, Basra and Erbil, respectively.

UN: Security Council

Others are turning to security companies.

WSJ: Ahead of Vote, Greeks Move Cash, Hire Guards

We are training Afghan forces, and -- with the goal of turning over security lead to the Afghan forces between the drawdown that begins in July 2011 and 2014.

WHITEHOUSE: Press Briefing