Yes, it is possible that due to what happened, the security company stopped providing services. However, companies will switch service providers, such as security companies, for reasons of cost ("they've become too expensive, let's look into this less expensive alternative"), poor service ("we're not getting the service they said they would provide"), or whatever reason.
What's been bothering me is how well the security company that SG worked for actually screened it's employees. Did they do background checks? Check prospective candidates to see if the candidate had a criminal record?
BBM
Apologies if the second paragraph above is redundant. I've gone through the threads, but don't recall seeing anything on this.
Mods: I'm still finding my way around the TOS; please feel free to delete this post if it violates them.