Final answer:
Home network alert systems notify users of changes that may affect network security, including unauthorized access attempts. These systems are essential for preventing unauthorized surveillance and ensuring privacy.
Step-by-step explanation:
Alert systems that notify you when there is a change affecting access to your home network play a significant role in ensuring the security and integrity of your network. These systems are particularly important in the context of smart homes and connected devices. For instance, sophisticated software exists that identifies and tracks all cell phones attempting to connect to a network within a large radius. Law enforcement, as well as criminals with the right tools, can use such software to remotely activate a phone's microphone and camera, turning the device into a covert surveillance tool without the owner's knowledge. It's crucial to have a secure, updated, and vigilant system to alert homeowners of any unauthorized access attempts, protecting against the potential misuse of network access for surveillance or other malicious activities.