We know that Facebook has huge amounts of data from its billions of users. However, according to information, the company also has data monitorings from people he considers to be a threat to the company or its executives. THE Revelation was made by CNBC on Thursday.
CNBC has spoken with several former senior social workers who claim that the company maintains a list of people for whom the Facebook security team should be "cautious."
This is the "BOLO" list that comes out of "be on the lookout". 
This list of people includes, by information, anyone who comments badly or threatens Facebook services.
In some cases, according to CNBC, Facebook tracks people it deems a risk by using their IP address or combining their data with its other services to identify location their. The company then decides whether to hand over the data to the authorities or not.
CNBC reports that Facebook's BOLO list contains "hundreds" of names and that the conditions under which a person can be added to the list are quite subjective.
Of course one of the reasons is the insult of the founder of Mark Zuckerberg:
While some users they end up on the list after repeated posts about the company that contain threats, while others may find themselves on the BOLO list by writing something as simple as “F- you, Mark”, “F- Facebook”, or “I'm gonna go kick your a—,” according to a former employee who worked on the security team.
A Facebook spokesman disputed all of the above, saying there were people going through a "rigorous review to determine the validity of the threat."
Facebook spokesman Anthony Harrison told Gizmodo that "the company's physical security team is there to keep Facebook employees safe as well."
They use standards to assess and address threats of violence against our employees and our company and refer threats to law enforcement authorities when necessary.
"We have strict procedures in place to protect the privacy of citizens and to comply with all privacy laws and Facebook's terms of service."
And according to σελίδα Policy data
We use the information we have to verify accounts, activity, combat harmful behavior, identify and prevent spam and other bad experiences, preserve the integrity of our products and promote Facebook security.
For example, we use data we have to investigate suspicious activities or violations of our terms and policies, or to find someone who needs help.
Of course the terms of use of Facebook do not mention anywhere that it is forbidden to report something bad about Zuckerberg.
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