A shipping container includes walls, one or more doors, a locking device and a security device. At least one door is movable between an open position and a closed position. The locking device is configured to secure the at least one door in its closed positioned. The locking device defines an opening and includes a first fastener and a second fastener. At least one of the fasteners is attached to the door. The security device is insertable through the opening of the locking device. The security device includes a first wing substantially covering the first fastener and a second wing substantially covering the second fastener to substantially prevent access to the first fastener and the second fastener when the security device is inserted through the opening of the locking device. Other example shipping containers, security devices, etc. are also disclosed.