In today’s hyper-connected world, smart devices are now found everywhere from our homes and offices to hotels, vehicles, and even clothing. While the Internet of Things (IoT) has enhanced our convenience and efficiency, it has also inherently created a new kind of security vulnerabilities that we don’t always see. For Technical Surveillance Counter-Measures (TSCM) professionals, the movement towards IoT means surveillance threats have not only become more convoluted but are more difficult to identify, and often concealed in plain sight.
📡 The attack surface grows
IoT devices are designed to collect, transmit, and even receive data sometimes continuously. Smart speakers, smart thermostats, smart light bulbs, smart printers, smart coffee makers, etc., are all connected to the network and connected to a number of other sensors capable of taking audio, video, or location-based data.
For TSCM professionals, this means it has expanded the attack surface beyond the realm of traditional surveillance bugs and wiretaps. Espionage tools are not explicitly concealed within mainstream, and fully legitimate everyday devices, which makes them far more difficult to detect with traditional sweep methods.
🕵️♂️ The Fine Line Between Useful and Dangerous
In TSCM today, more than ever, the distinction between useful smart technologies and covert surveillance threats is challenging to discern.
- An organization may deploy a Wi-Fi-enabled video camera as part of their security system, or a competitor could have planted a rogue device.
- It is possible a smart speaker is erroneously logging conversations due to its configuration settings, or it may intentionally be logging information as part of a malicious firmware based implementation.
- Subtle audio recorders such as USB chargers or power banks can be clandestinely placed and are very hard to detect without specialized tools.
- The technological landscape in which TSCM operates is rapidly changing forcing professionals in the industry to be tech-savvy and continuously develop their toolkit of customary and emerging threats.
🛠️ The Evolution of TSCM Practices
In order to effectively respond to IoT-based threats, modern TSCM strategies now account for:
- RF Spectrum Analysis for Digital Devices: No longer limited to analog bugging. TSCM strategies now include consideration for detecting digital transmissions, such as Wi-Fi, Bluetooth, Zigbee, and cellular signals.
- Network Scanning and Traffic Analysis: Identifying unidentified or questionable IoT devices lurking on or connected to their internal networks.
- Firmware and Device Integrity Checks: Ensuring that devices haven’t been tampered with by confirming that firmware hasn’t been altered, or that a device hasn’t been swapped out for a modified version.
- Physical and Digital Threat Assessment: This includes traditional physical sweeps, along with digital forensics and network analysis for overall assessment of knowledge of local threats.
🔐 Proactive Protection: A Shared Responsibility
Organizations need to understand that TSCM is not a “once and done” process. TSCM is ongoing. Each time a Internet of Things smart, network enabled device enters the workplace, it is yet another threat vector. Security teams, IT departments, and TSCM professionals are successful only when they are constantly evaluating, auditing, and recalibrating their respective environments in constant communication with one another.
Basic first steps or take-aways such as segregating IoT devices on separate networks from mission-critical networks, disabling unnecessary services, and taking known secure, out-off-the-box configurations can only reduce risk to a degree – at best – when users combine them with continuous, professional TSCM sweeps.
🚨 Conclusion
As technology changes, so too do these espionage tools. The same technology that helps us “make life easier” gives our opponents new means of spying, stealing and sabotaging. While operating in such an environment, TSCM’s role must encompass the digital not just our physical environment as that digital ecosystem leaves our privacies, confidentiality and security vulnerable to the conveniences of their smart devices.
Smart threats require smarter defenses, and that is exactly where modern TSCM can help.