Surge in IoT Adoption Transforms Industries, Raises Security Concerns

The global adoption of the Internet of Things (IoT) is accelerating rapidly across industries, driving unprecedented levels of automation, efficiency, and connectivity — but also bringing with it a wave of cybersecurity challenges.

According to a new report by the International Data Corporation (IDC), the number of connected IoT devices worldwide is expected to surpass 35 billion by the end of 2025, up from 29 billion in 2023. These devices range from smart sensors in factories to connected home appliances, healthcare monitors, and autonomous vehicles.

In India, smart city initiatives have led the charge. Cities like Pune, Bengaluru, and Hyderabad are integrating IoT solutions for traffic management, waste disposal, and water quality monitoring. “IoT is the backbone of smart infrastructure,” said Anjali Sharma, Director of the National Smart Tech Mission. “It’s not just about convenience—it’s about sustainability and future readiness.”

The industrial sector is also witnessing a revolution with IoT-enabled predictive maintenance, real-time supply chain tracking, and energy optimization. Companies like Tata Steel and Reliance Industries have reported double-digit improvements in operational efficiency since deploying IoT networks.

However, this rapid expansion comes with rising cybersecurity threats. The Indian Computer Emergency Response Team (CERT-In) has warned of a growing number of attacks targeting unsecured IoT devices, including surveillance cameras and smart meters. “The more connected we are, the more vulnerable we become,” said cybersecurity expert Rajeev Malhotra. “Security must evolve at the same pace as innovation.”

The government is currently drafting an IoT Security Framework to enforce minimum standards and protect critical infrastructure. Meanwhile, consumers are being urged to change default passwords and regularly update firmware to minimize risks.

As the IoT ecosystem continues to grow, the focus will be on balancing innovation with resilience, ensuring that the digital transformation is both smart and secure.