-: The first part of securing your organization
is maintaining a good perimeter defense
around your building.
Now, based on your organization, this is going
to have different requirements based
on what kind of work you do.
For example, if you work for the government or the military,
you may be dealing with classified information
and if that's the case, you may see a big eight foot tall
chain link fence with barbed wire
at the top surrounding the building.
You may have access control points that are guarded
by soldiers with guns.
There might be vehicle barricades, there might be
other such things that are going to keep people
away from the building unless they're authorized
to be there.
This makes sense for them, right, because they're dealing
with secret and top secret information
and they want to make sure nobody gets access
to it that shouldn't.
Now, your company probably doesn't have this level
of security, though.
And instead, they're going to rely on surveillance cameras
and closed-circuit TV.
Now, when we talk about closed-circuit TV
or CCTV as it's also called,
these come in lots of different solutions.
The first two types are wired and wireless.
A wired solution means that this TV camera
that's being placed around your building is going
to be physically cabled from its device, all the way
to a central monitoring station.
Now, if you're using a wireless solution,
these are a lot easier to install
but because they're wireless, they could have interference
with other systems and an attacker could try to jam them.
There's also indoor and outdoor,
some CCTV systems are only designed to work indoors
and others are used for outdoors.
If you're going to be monitoring the parking lot,
you need an outdoor camera that's going to be able
to stand up to the elements like rain
and snow and things like that.
If you're going to be monitoring things indoors,
like access to and from server rooms,
access to and from the lobby, this would be something
you could use an indoor camera for.
They're a lot cheaper because they don't have
to be held up to that standard that works in the outside.
Another feature you might want to look at with your CCTV
is what's known as PTZ which is pan, tilt, and zoom.
This is what you might've seen in some movies.
If there's a security guard as in part of the bank heist
and he's able to take a joystick and move the camera
to look at different direction and tilt it up and down,
pan it left and right, or zoom in or zoom out.
That's a PTZ system.
Another type of system we have is what's known
as an infrared system, which looks at things based
on their heat, as you can see in this image.
You could see the laptop is producing heat
and we'd be able to see it.
The final type is what's known as ultrasonic,
which is used for sound-based detection.
If you've ever watched the Mission Impossible movies,
they had an ultrasonic system that would sit there
and listen, if even a pin dropped on the floor,
it would set off the alarm and that way this guard
could come running in and arrest the perpetrator.
Now, when you place your cameras,
placement is really important
and you have to figure out what are you trying to guard.
Most of the time, you're trying
to guard your entrances and your exits.
If you're pointing the cameras at the entrance or exits,
you'll be able to see when people enter
or leave the facility.
This would be both the entrance and exit of your building
but also of your server room and other secure locations.