As a network security analyst, you have been tasked with improving the security of a network that includes a variety of embedded devices, including appliances, wearable devices, and industrial equipment.

The network has been experiencing frequent security breaches.

Which of the following would be the MOST effective strategy to improve network security?

answer

Using VLANs or encrypting all network communications.

Regularly updating the firmware of all devices.

Disabling all unnecessary services on the devices.

Implementing a firewall for each individual device.