What happens if two people are logged into facebook at the same time?

Question

What happens if two people are logged into facebook at the same time?

Answer 1

I'm pretty sure it acts like both people can use one account without knowing anyone of them having a clue about the other.

Answer 2

No this isn't the case at all, you will not see the other person changing things. However, when you do change something on your profile generally facebook posts that you updated your profile on your wall, and This is most likely what you will see. But as for mouse clicks, etc. you aren't going to see that.

Answer 3

its easy and could happen.....



no other can't see it happening...but soon unread message counter will show a less number....

Answer 4

On the chat portion if you open a Chat window from Bob the other account user will see it, if you switch the chat to Joey they will see it switch if u minimize it they will see it, if you scroll they will see it so I suggest if you wanna be a creeper use the inbox instead of the chat

Answer 5

I don't think that if one person clicks on something the other will see it happening.

Answer 6

1) Both can check the messages.

2) The other person will not know the same login happened from a different location.



They both can work at the same time. Facebook's back end follows a system called MVCC = Muti version concurrency control. Which allows same document/page to be edited by two or more people at the same time. But only the latest update will have a final effect of the document in question.



But the fundamental of a social network ( Including Facebook) , a person who used a login seems to be real. He is considered to be using his own ID. Most TOS of social networks deny a login to be shared by two people.