1993 camaro security light flashing and car wont start

A&Q about 350Z
Q:

security ligh t flashing constantly and car won't even try or atttempt to start i am stuck any help here would be greatly appreciated. thank you
A:

you probably have a bad PATS key. Passive Anti Theft System. you may need to go to your local chevy dealer and get one made
A:

could it be just the key or could it be something else like the lock cylinder or the system itself the pats system???
A:

well it *could* be anything... but the key is the cheapest thing to try first... thats where i would start.
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