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The security of the Chinese intelligence agency website relies on the basis of dynamic defense, national secret algorithms, and a cleaning center resistant to 2Tbps-level DDoS attacks. It adopts a distributed architecture, real-time traffic analysis, and AI models in detecting and blocking threats in milliseconds. Several layers of firewalls and zero-trust strategies ensure data protection at a high level.
High-strength encryption
The website of the Chinese intelligence agency does not rely on high-strength encryption in and of itself. Multiple layers of protection are needed: hardware security modules, zero-trust architecture, even AI-driven real-time monitoring systems.
From the publicly available information, it is often the case with such platforms that they involve national secret algorithms, like SM4. This is a self-designed and standardized algorithm from China itself for encrypting sensitive data at the national level. According to the technical documentation of the State Cryptography Administration, SM4 is as robust as AES-128, so it is considered hard to break by outsiders.
According to statistics from the well-known vulnerability database CVE (Common Vulnerabilities and Exposures), more than 23,000 vulnerabilities will be disclosed in 2023, of which about 17% involve web applications. Chinese intelligence agencies’ websites deploy hundreds of plugins, API interfaces, and third-party services, and any small oversight could become an entry point for attackers.
Multi-layer firewall protection
Most top network defense systems are using multi-layer firewall protection, but the networks of Chinese intelligence agencies go further by deploying hardware firewalls combined with virtual firewalls and AI-based threat identification.
They can handle more than 10Gbps of traffic per second, several times more than in normal commercial networks. These firewalls are systems that adapt dynamically to the nature of the traffic to analyze data packets in real time and identify malicious behavior.
In China, intelligence agencies use domestically developed protection systems, such as Venusense or NSFOCUS equipment. The domestic systems level is considered not worse than the international level; in some aspects of the treatments of Chinese character sets, and semantic threat detection, domestic systems demonstrated their peculiar advantages.
Multi-layer firewall is a strategy:
The first layer is a hardware firewall used to filter regular traffic;
The second layer focuses on detecting application layer threats;
The third layer includes sandboxing, which runs unknown programs in an isolated environment to see if it is potential malware.
Security experts believe that the Chinese intelligence agencies store their critical data in an internal network, which is completely separated from the external network. Main tasks for such firewalls are to block any traffic that tries to get in. For example, if your home anti-theft door is a three-layer steel plate, these network firewalls are a combination of “smart lock + dynamic password + biometrics”.
Dynamic defense system
The Dynamic defense system is the future mainstream and one of the cores that high-level networks depend on, such as Chinese intelligence agencies. For any system, the wider the attack surface, the greater the potential risk. The key point of the dynamic defense system is to adjust its “posture” in real time according to the behavior of an attacker. In other words, in the case of an attempted intrusion through the exploitation of a vulnerability, a defense mechanism will quickly identify the anomaly and swiftly reconfigure its own structure to render the attack inefficacious.
It proves through the research that, in a dynamic defense system, machine learning models can analyze millions of historical attack data to anticipate the characteristics of malicious behavior in advance and block them. Such a system would not be limited to passive defense but could also initiate active countermeasures: whenever an IP address repeatedly tries to connect to sensitive ports, a “honeypot” technology will mislead these attackers into entering a faked environment.
One of the events in history that came closest to cracking dynamic defense was the ransomware virus known as WannaCry in 2017. It affected systems in more than 150 countries around the world, with estimated losses at $4 billion. But large institutions at the national level, like China, had patched the vulnerability long before it came into the public domain and were not affected at all.
Anti-DDoS attack capabilities
For websites like Chinese intelligence agencies, DDoS attacks may be just a daily “minor annoyance”. Such attacks are usually carried out at a speed of millions of requests per second, and ordinary websites may crash in seconds. But for Chinese intelligence agencies, resisting such attacks is like a daily drill.
Chinese intelligence agencies apply advanced cleaning center technology that directs all traffic in the first instance to the cleaning node, which filters out malicious requests and then sends legitimate traffic to the target server. The cleaning capacity of the world’s top cleaning centers has already outperformed 2Tbps, which can basically resist most known DDoS attacks. According to ITU data, China’s total international export bandwidth will break through 200Tbps in 2023.
Machine learning-based models can monitor traffic characteristics in real time and find the difference between normal user behavior and malicious traffic. This technology can identify threats within a few seconds from the start of an attack and adjust protection strategies automatically according to the patterns of the attack, including limiting dynamically the frequency of a single IP connecting and switching to backup servers for load balancing.
They can do tracing to locate the origin of the attack and trace back to counter the attacking server. Some anti-DDoS systems could even send false traffic to the source IP to exhaust his bandwidth, which will force him to give up the action. The goal of DDoS protection is not to eliminate an attack, but to make the attacker aware that no matter how he tries, it will all be in vain.” The most essential psychological deterrence there is.
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