Vulnerabilities in smart home devices can expose users to cyberattacks

October 26, 2026 3 min read

Default passwords, outdated software and unnecessary remote access features can leave connected devices vulnerable, making regular updates and stronger security settings essential.

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Vulnerabilities in cameras, TVs and routers can compromise the privacy of connected homes and facilitate unauthorized access to other devices on the home network.

Connected homes face cybersecurity risks when their devices have vulnerabilities or insecure configurations. Surveillance cameras, TVs, voice assistants and routers, designed to provide convenience and security, can become entry points for cybercriminals and expose the privacy of people living in these homes.

A Kaspersky investigation identified 10,260 Internet of Things (IoT) devices exposed worldwide, primarily routers. Brazil, Mexico, Chile, Argentina and Colombia were among the Latin American countries with the highest levels of exposure. The findings show how everyday devices can have weaknesses that facilitate intrusion attempts.

Vulnerabilities in the connected home.

As homes incorporate more technology, the number of potential entry points for attackers also increases. Cameras used to monitor pets or babies, internet-connected TVs and virtual assistants for controlling lights and appliances serve different functions, but many share the same home network and can collect, process or transmit personal information.

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In a compromised smart home, threats may go unnoticed. A vulnerable camera could allow someone to view private footage without authorization, while an infected router could be used for malicious activities. Likewise, certain compromised devices could receive instructions from third parties without their owners realizing it.

One risk lies in devices that typically receive less security attention than mobile phones and computers. Some devices may remain for years with default passwords, outdated software or unnecessarily enabled remote access features. These conditions can make it easier for an attacker to exploit known vulnerabilities or weak credentials to gain access.

Furthermore, an intrusion does not necessarily end with the first affected device. Depending on the network configuration and existing vulnerabilities, a compromised device can facilitate attempts to access other connected devices.

Protecting the home network.

Smart home security also poses a challenge for consumers. Surveillance cameras, electronic locks and baby or pet monitors can expose families’ privacy if they lack adequate protection. Because these devices are integrated into daily routines, their vulnerabilities and insecure configurations may remain unaddressed for long periods.

In this regard, Fabiano Tricarico, Consumer Products Director for Latin America at Kaspersky, said:

“When we think about protecting our home, we check that doors and windows are properly closed, but we rarely pay attention to digital entry points. A poorly protected camera, TV or router can allow cybercriminals to access private information or use our devices without authorization, even without us noticing. That is why it is essential to protect our connected devices and prevent technology designed to make our lives easier from opening the door to new threats.”

To reduce cybersecurity risks in smart homes, Kaspersky experts recommend adopting protective measures for devices and the home network:

– Change default passwords on cameras, routers, TVs and other connected devices. It is advisable to use unique, hard-to-guess passwords and enable two-factor authentication when available.

– Review access to security cameras and disable remote viewing features when they are not needed. It is also advisable to check the permissions of the applications that control these devices, especially those related to the camera, microphone and location.

– Separate smart devices from the personal network by using a separate Wi-Fi network from the one used by computers and phones. This measure can help limit the scope of an intrusion if the network is properly isolated.

– Keep connected device software up to date, enable automatic updates when available and verify that manufacturers continue to provide security support.

– Secure the router and review connected devices. This includes changing the factory password, using a strong Wi-Fi network password and periodically checking for unknown connected devices.

Kaspersky also recommends complementing these measures with security solutions for compatible computers and mobile devices. However, protecting cameras, routers and other smart devices also depends on their own security configurations and updates.