Yes, an unauthorized person is not allowed to access certain areas or information. Unauthorized access can pose security risks and violate privacy policies. It is important to secure access controls to prevent unauthorized individuals from gaining entry.
Picket
Without entering the area, keep people away from the scene and outside the safety perimeter.
Your answer depends on what makes this person 'unauthorized'. If the person is a squatter, you can call the local police with proof that this person is living in a space where they are not entitled to live. Otherwise, you may want to consult with an association-savvy attorney to help identify how this person can be labeled 'unauthorized' and thus, removed.
should the person entering the house speak first when entering if they live there
Lots of people with learning disabilities get jobs, so it does not prevent them from entering the workforce.
Talk to the site manager and report that the person in question is using an unauthorized Facebook account
The person who stops pucks in hockey is a goalie. They prevent pucks from entering the net and giving the other team a point.
While not giving your PII - including usernames, passwords, account numbers, etc. to unauthorized persons is a good way to avoid becoming a victim f phishing, the whole point of phishing is to impersonate an authorized person or entity, thus a person can still be a victim of phishing while believing they have never provided their PII to an unauthorized person. To be effective in defending yourself from phishing, you have to combine the policy of not divulging PII to unauthorized persons with an effective procedure for verifying the identity of the person or entity requesting the PII and being suspicious of requests for PII until you have confirmed both the identity of the person or entity requesting it AND their legitimate need for it.
This are devices such as cards (like credit card) tokens, rfid etc that you need to provide when entering a facility with access restrictions, each device have a unique id and provide access to a person such as entering the building only on week days from 9 to 5
"Authorized Personnel Only"
A sliding door pool alarm works by detecting when the door is opened, triggering an alarm to alert people nearby that someone may be entering the pool area. This enhances safety around swimming pools by providing a warning if a child or unauthorized person tries to access the pool without supervision, helping to prevent accidents and drownings.