I am a SimpliSafe customer, and I emailed them about this. Here is the response: "Thanks for writing in. As our systems use wireless technology, there is an un

I am a SimpliSafe customer, and I emailed them about this. Here is the response: "Thanks for writing in. As our systems use wireless technology, there is an understandable concern over the potential to hack or jam our signal. Much of it comes from a certain video online that fails to depict the equipment used or the number of attempts made to compromise that signal. While any wireless system is susceptible to this type of attack from a sufficiently savvy and motivated intruder, our systems can be backed up with with a land line or an internet connection for no additional cost. Also, this type of attack represents such a small percentage of total break-ins that the FBI does not even keep a count. This is because the majority of break-ins are a quick forced entry and not the sophisticated type of attack that requires diligent planning as well as highly illegal and cost-prohibitive equipment. Assuming an intruder has the requisite technology, he would need to know the frequency ranges he needs to jam, and also know the layout of your home beforehand, as he would have to avoid motion detectors even in the unlikely event that he bypassed a door sensor. Furthermore, our systems use a proprietary algorithm that helps the system distinguish between everyday interference from nearby household electronics, and unusual, possibly targeted interference. Our interactive monitoring plan for $24.99/month can be set up to notify you if your system detects abnormal RF interference. Ultimately, no system is impenetrable, and it would be unfair for us or any company to tell you otherwise, but SimpliSafe has measures in place to protect you against this type of intrusion, and with the likelihood of cellular jamming being as slim as it is, the odds are more than in your favor." Note they are trying to sell me on their most expensive plan and that they never mentioned the attack that is referenced in the article (which I linked to)." Time to look into a new company.