Many of the Bluetooth-enabled smart locks available on the market aren't terribly secure and can be opened when wirelessly attacked. According to researcher Anthony Rose, an engineer who presented at DEF CON, 12 out of the 16 locks he and researcher Ben Ramsey tested were vulnerable.
The effort required to hack each lock differed, but the duo found models from Quicklock, iBlulock, Okidokey, and others could certainly be hacked. Even more concerning than the vulnerabilities is the response Rose and Ramsey received from the companies.
We figured we'd find vulnerabilities in Bluetooth Low Energy locks, then contact the vendors. It turned out that the vendors actually don't care. We contacted 12 vendors. Only one responded, and they said, 'We know it's a problem, but we're not gonna fix it.' - Rose