The U.S. Federal Bureau of Investigation (FBI) has warned that internet-connected smart devices, known as "Internet of Things" (IoT) devices, are increasingly vulnerable to hacking. The Bureau noted that warning signs are often subtle, which may allow hackers to seize control of devices without the user’s knowledge.
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With the rise of Wi-Fi-enabled devices—ranging from smart refrigerators to doorbell cameras and fitness trackers—it is expected that more than 39 billion devices will be connected to the internet by the end of this decade, increasing potential vulnerabilities for home and office networks.
The FBI pointed out that even non-traditional items, such as ovens, children's toys, and irrigation controllers, are now equipped with Wi-Fi, further heightening security risks.
Warning Signs of a Breach
The FBI outlined several key indicators that a device may have been compromised:
Unusual Spikes in Internet Usage: An unexplained increase in data consumption can indicate that a device is infected with malware. This malware may be sending or receiving large volumes of data, such as dispatching spam or participating in coordinated cyberattacks. The Bureau explained that this allows hackers to hide their activities, making malicious data appear as though it is originating from your own IP address.
Unexpectedly High Internet Bills: If a user notices a sudden surge in their internet bill, it could be because a hacked device is consuming bandwidth intensively. Many ISPs charge based on data usage, and malicious activity can push users significantly over their normal consumption limits.
Random Performance Slowdowns: Malware can consume processing power, memory, and bandwidth, causing devices to lag or become unresponsive. This is also common in Distributed Denial of Service (DDoS) attacks, where compromised devices are used to flood specific targets with massive amounts of data.
Recommended Protection Steps
The FBI urged users to take the following preventative measures:
Reboot: Restart devices or routers if extreme slowdowns are noticed.
Change Credentials: Change default usernames and passwords immediately upon setup.
Update Firmware: Regularly check for and install firmware updates.
Network Isolation: If possible, isolate IoT devices on a separate network segment (Guest Network).
Monitor Activity: Use reliable antivirus software and regularly monitor network activity.
The Bureau emphasized that a slow device, a weak connection, or a lagging video is not automatic proof of a hack. All technical possibilities should be verified before assuming a cyberattack has occurred.
