text: Operating in a Contested Environment
  Attacks Against Personal Electronic Devices
  A-91. Widespread use of personal electronic devices creates significant vulnerabilities when operating
  against a peer threat. Peer threats have demonstrated advanced capabilities to exploit personal electronic
  devices, seize control of cellular communications networks, and locate personal cell phones with precision.
  This gives them the ability to collect information, conduct information warfare activities, and direct accurate
  lethal fires. Any personal electronic device capable of connecting to Wi-Fi, Bluetooth, or cellular
  communications systems is vulnerable to attack.
  Preventive Measures
  A-92. Measures to protect against personal electronic device attacks include—
  * Maintaining strict control and accountability of personal electronic devices.
  * Downloading only trusted apps from approved sources.
  * Maintaining current security updates on devices and apps.
  * Disabling Bluetooth and Wi-Fi features when they are not in use.
  * Encrypting sensitive files and personal information.
  * Allowing only government-provided personal electronic devices to connect to the DOD network.
  A-93. Commanders should consider restricting or banning the use of personal electronic devices, based on
  the tactical situation.
  Indicators
  A-94. Some possible indicators of attacks against personal electronic devices are—
  * Enemy attacks that seem to correlate with personal electronic device usage.
  * Incoming lethal attacks that occur with unexplained precision.
  * Receiving a barrage of text messages—up to several per second—preventing the intended use of
  the device.
  * Incoming propaganda or psychological warfare messages from unknown numbers.
  Reaction
  A-95. If a unit suspects it has come under attack, they should—
  * Quickly displace the element under attack and direct all personnel to immediately turn off personal
  electronic devices.
  * Disable personal electronic devices and confiscate them, if necessary.
  * Report to the next higher echelon.