IoT Security
Definition
IoT security refers to the strategies, technologies, and practices used to protect Internet-connected devices and the networks they operate on from cyber threats.
Examples
- A smart thermostat is protected with strong passwords and updated firmware to prevent remote access by attackers.
- A hospital segments its IoT medical devices from other networks to reduce the risk of malware spreading.
Overview
IoT security focuses on protecting Internet of Things (IoT) devices — everyday physical objects embedded with sensors, software, and network connectivity — from cyber threats. These devices range from smart home gadgets like thermostats and cameras to industrial machines, medical equipment, and connected vehicles. As IoT devices become more widespread, they also become attractive targets for attackers due to their often limited security measures and high connectivity.
Unlike traditional computers, many IoT devices have limited processing power and memory, which can make implementing strong security more difficult. They also tend to have long lifespans, inconsistent firmware updates, and may be deployed in large numbers — making them harder to monitor and patch. As a result, poor IoT security can lead to data breaches, denial-of-service attacks, unauthorized surveillance, and even physical harm in critical systems.
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