Hackers can potentially compromise internet-connected household devices, including refrigerators, by exploiting vulnerabilities in their growing connectivity. While critical infrastructure like power grids is more secure, consumer devices can be entry points for larger networks or data theft. Experts advise changing default passwords and limiting device connectivity.
The increasing connectivity of everyday devices creates new vulnerabilities for consumers and businesses, potentially leading to data theft, service disruptions, and broader network compromises. Protecting these devices is crucial to prevent cascading security failures.
Hackers have exploited the increasing connectivity of everyday devices, including refrigeration systems in hundreds of French supermarkets, to carry out cyberattacks. This growing trend of internet-connected appliances, from refrigerators and heating systems to security cameras and alarm networks, presents new opportunities for cybercriminals.
In theory, any device connected to the internet, directly or indirectly through apps, cloud services, or home networks, is potentially vulnerable. Researchers have previously demonstrated how smart refrigerators can be compromised, allowing interception of internet traffic. Attackers often aim to steal data, disrupt services, or use compromised devices as entry points into larger networks.
Commonly targeted household devices include security cameras, video doorbells, alarm systems, smart locks, thermostats, and smart appliances like refrigerators, ovens, and washing machines. Even some toothbrushes are now internet-connected. According to security data, routers are the most frequent targets, accounting for over three-quarters of all attacks on connected devices.
Once a device is compromised, hackers can either gather information, such as viewing camera feeds or listening through microphones, or take control of the device. This control can involve switching devices on/off, changing settings, or locking users out. In more serious scenarios, poorly secured devices can be used to access other systems on the same network or to steal personal information.
Cybersecurity researchers have also demonstrated vulnerabilities in connected vehicles. In 2015, a Jeep was remotely controlled, leading to a recall of 1.4 million vehicles. More recently, a flaw was disclosed that allowed tracking, unlocking, and starting certain Kia vehicles using only a license plate number, though Kia fixed these vulnerabilities and there was no evidence of real-world exploitation.
Critical infrastructure such as power and water supplies generally has multiple layers of security, making them much harder targets than consumer devices connected to home Wi-Fi networks. However, they are not immune to cyberattacks.
To protect their devices, cybersecurity experts advise consumers to change default passwords, enable two-factor authentication where possible, and regularly install software updates. They also recommend removing devices that no longer receive security updates and keeping most devices on a local network, only connecting them to the wider internet when necessary. The fewer connected devices a user has, the fewer potential entry points exist for attackers.
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