Indeed. I worked in a secure environment for about 4-5 years, and we couldn't bring our cellphone (of any type) or any other electronics/storage devices/etc. into work. In fact, while working there I had surgery that required me to lug around a medical device 24/7 for a while. And because the device had an exposed USB port, I wasn't allowed to return to work until after I no longer needed it. That took roughly 1 month.