Yes, Morgan is correct an access card can be disabled on the fly. But that is not the point.
Both of you are making wrong assumptions and there is no way you would want to tie an access card that allows building access & disables security.
1) Your assuming that the card will be reported right away which may or may not happen. A person might not know it’s missing until their next shift and then he/she may think “Oh, I must have left it in the “break room at work/in my desk/in my office/in my car/in my other purse/ etc. What if they are off for 2 days. If they are off for 2 days in a row then technically 4 days can possibly go by until the employee actually realizes it’s lost. The day they loose it, the 2 days they are off and the day they go back to work.
2) You are also assuming a stranger will find it and not know what company the badge belongs to. How about a co-worker steeling it so they can come in and steal from the company when your not there? How about a roommate doing the same? There are many, many scenarios I can give.
A little bit of my background, besides DSW, I also own one of the largest data service companies around (it’s a separate company from DSW but both companies share the same clients). We manage global network operations for Fortune 100 companies and our data center is ISO9001 certified.
In order to get to the data center floor you have to go through the following (this is similar to what Mark described),
1st Verification - Badge Access through the front door
2nd Verification - Badge Access AND hand scan that leads you to a man trap
3rd Verification - Actual physical & visual verification by security personal to allow you to pass through the man trap and exit on to the data center floor.
If my ISO9001 audit showed an access badge eliminating #2 hand scanning above & allowed the passthrough door to open in #3, my ISO9001 certification would be revoked and I would be out of business because our clients require that we are ISO9001 certified.
In the end you do not want to tie building entrance & disabling an alarm with one swipe of a card PERIOD. That goes for commercial as well as residential. Security alarms are there for a reason. First line of protection locked Front/Side/Rear entry, second line active alarm.
Morgan stated the following example “Many alarm companies are now offering the convenience of keyfobs for alarms. It does the exact same thing, disarms the alarm without entering a code. So what if Mrs. Smith looses her purse? Now they have her home address AND all her keys/fobs.” Where is the security here? There is none.
Again use a key or fob for the door (1st line of protection) and then manually enter your security code (2nd line of protection). Here is a good example why. Her purse was stolen, now the thief has the key or fob for the door & license and goes to the house and enters, he got through (1st line of protection failed). IF the fob is NOT tied to the security system, the alarm will go off (2nd line of protection worked as it should). If there are cameras they record who the person is and now they have a pic. Not to mention that more then likely the thief has been scared off by the alarm and nothing is stolen. If the fob were to deactivate the security system then motion sensors would be deactivated, cameras would be deactivated as well as the alarm (1st & 2nd line of protection failed). The thief is now in your house and helping himself. GOD FORBID you have a teenage daughter in the house at the same time.
I am sure there will be people out there that will disagree and I really don’t care. You can do what you like with automation and security. All is peaches and cream until an access card/fob is lost/stolen, that allows building access while at the same time disables security, and some one uses it to access a building (commercial or residential) and does some serious damage.
I have made my point.