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5

We don't know what security measures Facebook exactly provides but spoofing the source IP of a TCP connection (which is used when accessing a web site) and still doing something useful with the connection is impossible in practice. This means that it is more likely that the site was really accessed from the shown IP address (no spoofing), that the database ...


2

We do not know how Facebook implements security internally, so we can only guess. But common best-practices regarding admin authentication is to use the IP address as an additional authentication factor, but not the only one. For example, it would not be uncommon to only allow admins to connect from specific IP addresses which were authorized for this, but ...


1

In theory, you could have caught a drive by download. However, it is much more likely that you have been redirected to an advertisement page and the respective owner now rejoices about the revenue of all the sheeps clicking on funny looking links ;-) You can delete your cookies to get rid of any tracking/advertisement ones and I generally recommend ...



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