Physical security controls
Edit me
- administrative
- policies & procedures, facility selection, personnel controls, awareness, site management
- logical
- technical controls - alarms, CCTV, HVAC, fire detection
- physical
- physical means - fences, lighting, locks, dogs/guards, mantraps
- ideal humidity - 40 - 60 percent
- ideal temp - 15 - 23 Celsius
there is no security without physical security !!!
| blackout | prolonged loss of power |
| fault | short loss of power |
| brownout | prolonged low voltage |
| sag | temp low voltage |
| surge | prolonged high voltage |
| spike | temp high voltage |
clean power –> UPS in order to prevent damage
too much humidity –> CORROSION
too little humidity –> STATIC ELECTRICITY
FIRE SUPPRESSION
| class (mnemonic) | type | extinguished with |
|---|---|---|
| A (ash) | wood, paper | water, soda acid |
| B (boil) | burning alchool, oil, gasoline | CO2, soda acid, halon |
| C (conductive) | electrical | CO2, halon |
| D (Dilythium) | burning metals | dry powder |
| K (Kitchen) | kitchen fire, oil, grease | wet chemicals |
fire detection
- smoke sensing
- flame sensing
- heat sensing
electromagnetic interference
- common mode noise –> diff in power btw hot/ground wires
- traverse mode noise –> diff in power btw hot/neutral wires
RFI - Radio Frequency Interference –> generated by electrical appliances, light sources, cables, etc.
water suppression systems
- preaction –> closed sprinkler heads, pipe charged w/ air
- wet pipes –> filled w/ water
- dry pipes –> filled w/ air
- deluge –> dry pipes w/ larger open sprinkler heads
water and electricity do not mix !!!
gas discharge suppression systems
- halon not anymore –> FM-200, argon, argonite, inergen
mantrap –> only one person in
masquerading –> Pretend to be someone else
piggybacking –> follow someone through a secure gate w/o being id/auth personally
sensors for glass
- shock –> built in the window
- glass-break –> mic that listens for sounds
air quality - no dust + positive pressurization (DC room has a bigger pressure, when door is opened the air should flow OUT, not IN)