The transition from 3G wireless technology to 4G will open the door for more vulnerabilities, Gartner’s Pescatore said. “Over-the-air” updates used for wireless will only be as secure as the wireless environment itself. “A solar flare can take out wireless,” so there will be disaster recovery issues as well, he said. He recommends using a virtual private network or application-level security for any sensitive applications that run on wireless devices for the next three years.”]
Source: https://www.darkreading.com/attacks-breaches/how-to-defend-against-infrastructure-attacks