Some companies block their employees from using social media networks and websites such as Facebook.

Thanks for your ideas about the question Ms. [이름]. It\'s a great idea. ^^

T. James

I think some companies should block their employees from SNS.

>>> CORRECT

That\'s because many business information can be leaked through SNS. 

>>> CORRECT

To be specific, people tend to tell something they know to others, even if it is very confidencial. 

>>> To be specific, people tend to say something they know to others, even if it is very confidential. 

Of course, managers should trust their employees, but they need to be prevented about the information leak.

>>> Of course, managers should trust their employees, but they need to prevent about the information leak.

For example, In korea, there is entrance exam for university.

>>> For example, In Korea, there is the entrance exam for university

People who make the exam questiones can not go home and use medias after making the questiones until the exam finish. 

>>> People who make the exam questions can not go home and use media after making the questions until the exam finish. 

It has a possible to make issue about leak.

>>> It has a possible to make an issue about the leak.