As the Internet of Things (IoT) becomes increasingly prevalent in society and its application scenarios expand, security risks will also rise. Large-scale DDoS attacks targeting IoT devices will become commonplace in the future. This is because the increasing number of IoT devices creates a scale effect, the most direct negative impact of which is that it will become easier for attackers to launch DDoS attacks. Security experts state that, considering the difficulty of implementation, operational costs, risks, and benefits, DDoS attacks are an effective form of attack and will remain a common attack method for a considerable period.
Internet of Things (IoT) security includes the following attack types:
Attacks on RFID. RFID technology is one of the key technologies of the Internet of Things (IoT), and is currently mainly used in applications such as "unmanned supermarkets".
Attacks on WSNs. WSN stands for Wireless Sensor Network, and it forms the underlying sensing layer of the Internet of Things (IoT). This layer includes a large number of sensors, which generate massive amounts of data during operation. If this data is intercepted by malicious actors during transmission, the consequences could be disastrous. WSNs currently have applications in the military.
Attacks on routers. Routers are crucial network devices, and attacks on them can lead to network paralysis. Typical examples include DoS attacks and DDoS (Distributed Denial of Service) attacks.
Other attacks include those targeting communication lines, users, and servers.
As a representative product of the deep integration of cyberspace and physical space, IoT terminals have rapidly expanded from pioneering consumer products to various sectors of the economy and society, providing new service methods for many industries such as education, healthcare, retail, energy, construction, and automobiles, and supporting the improvement of basic urban functions such as government offices, public safety, and transportation and logistics. Existing IoT terminal devices focus on functional implementation, while traditional equipment manufacturers often lack sufficient security capabilities or, considering factors such as time and cost, generally neglect security issues in terminal design.
IoT terminals can be divided into smart terminals and non-smart terminals. Most smart terminal devices have embedded operating systems and terminal applications, while non-smart terminal devices are mostly simple in structure and function, and only perform data collection and transmission functions. Therefore, smart terminal devices pose a greater information security threat.
The second aspect is the security of the IoT pipeline. The IoT "pipeline" connects the "cloud" and the "device," and its security refers to the security of this large-capacity, intelligent information pipeline. Research on IoT information pipelines has identified four main security threats.
Thirdly, there's the security of IoT cloud services. Simply put, IoT cloud services are used for sharing information and resources with other parties; therefore, protecting cloud service security is a crucial aspect of protecting IoT security.
The Internet of Things (IoT) is applied across various industries, effectively solving the problems of remote monitoring, control, and transmission. However, security vulnerabilities in the sensing, transmission, and processing phases of IoT may extend into actual industrial networks. These security vulnerabilities lurk long-term in IoT terminals, sensing nodes, and transmission paths, waiting for an opportunity to launch attacks, disrupt industrial system security, and even threaten national security.
Even if the security of each layer of the Internet of Things (IoT) is guaranteed separately, the overall security of the IoT cannot be guaranteed. This is because the IoT is a large system integrating multiple layers, and many security issues stem from system integration. For example, data sharing in the IoT places higher demands on security, application requirements of the IoT present new challenges to security, and the privacy protection requirements of IoT user terminals are becoming increasingly complex. Therefore, the security architecture of the IoT needs to be built upon the existing information security system to develop a sustainable security architecture, ensuring that its security measures can be continuously improved during the development and application of the IoT.
