Distributed denial-of-service (DDoS) attacks have become a major threat to the stability of online businesses. As the scale of these attacks continues to escalate, the term "1.5T protection" has gradually become a standard for measuring high-end defense capabilities.
1.5T DDoS protection refers to a protection system's ability to identify and mitigate malicious traffic attacks with peak rates of up to 1.5 terabits per second. This figure represents the highest level of DDoS protection available, equivalent to approximately 1500Gbps of bandwidth. Notably, actual attack packet rates recorded by security research institutions in 2025 reached 1.5 billion per second, making 1.5T protection particularly necessary in today's environment.
This level of protection cannot be achieved by a single device alone; it relies on a distributed protection architecture and multi-layered mitigation strategies. This protection system typically consists of multiple high-defense nodes, working together to distribute the attack pressure. When malicious traffic influxes, the system employs traffic cleaning technology to divert the attack traffic to high-defense IP addresses. After cleaning and filtering, normal traffic is then returned to the source server, ensuring continuous and stable business operations.
For online businesses, 1.5T protection is like a solid digital defense. Its practical value lies primarily in three areas: ensuring business continuity, protecting the integrity of data assets, and safeguarding corporate brand reputation. This protection capability has become a key pillar of business stability, particularly in high-value industries such as gaming, finance, e-commerce, and live streaming.
For the online gaming industry, for example, when faced with large-scale DDoS attacks, the 1.5T protection system can achieve a 99.8% success rate in scrubbing attack traffic, minimizing service interruption to near zero and significantly improving player experience stability. For financial payment platforms, this protection capability can help them withstand 50Gbps hybrid attacks and ensure processing capacity of tens of thousands of transactions per second.
Achieving 1.5T-level DDoS protection relies on the coordinated efforts of multiple advanced technologies. BGP intelligent routing and traffic scrubbing form the core of the protection system, absorbing and diverting attack traffic through globally distributed protection nodes. Simultaneously, an AI-powered intelligent analysis system monitors traffic patterns in real time, identifying attack signatures in milliseconds and automatically triggering scrubbing mechanisms.
At the protocol level, the 1.5T protection system employs a multi-layered design, encompassing full-protocol protection from the network layer to the application layer. It effectively counters a variety of complex attack methods, including SYN floods, UDP floods, CC attacks, and HTTP/HTTPS floods. This comprehensive protection ensures that even under terabytes of traffic, legitimate users' access experience remains unaffected.
Choosing the appropriate DDoS protection solution requires comprehensive consideration for business needs of varying scales. For small and medium-sized websites and corporate websites, basic protection of 20Gbps to 50Gbps may be sufficient. For medium-sized enterprises, gaming servers, and video platforms, intermediate protection of 100Gbps to 300Gbps is recommended. Advanced protection options like 1.5T are only necessary when the business scale reaches the level of large e-commerce companies, live streaming platforms, or financial institutions.
When evaluating protection solutions, it's important to understand the difference between stand-alone and clustered protection. Stand-alone protection protects a single server, while clustered protection protects multiple servers with a single firewall. For scenarios requiring extremely high business stability, stand-alone protection often provides more reliable protection. The scale and technical sophistication of DDoS attacks continue to evolve. Attack bandwidths are increasing, and attack methods are proliferating. Industry trends indicate that attack scales have evolved from the 1G and 10G levels of the past to 500G and 800G, becoming the norm. Since 2017, attacks have entered the terabyte era. This means that today's cutting-edge configurations may soon become essential requirements tomorrow.
To address this trend, leading protection service providers have begun offering elastic capacity expansion capabilities, dynamically adjusting protection resources based on business needs. Furthermore, the deployment of the Anycast global acceleration network ensures that user access latency remains below 50 milliseconds even during attacks, achieving a balance between security and user experience.
1.5T DDoS protection represents the highest level of current network security capabilities, providing critical business infrastructure with the technical support to withstand extreme attack scenarios. With the increasing importance of digital business, investing in commensurate protection capabilities is no longer a nice-to-have option; it's a strategic necessity to safeguard business continuity and corporate reputation.
