Solana withstood a massive DDoS attack with a capacity of 6 Tbps without any downtime.

Co-founder of Solana Anatoly Yakovenko confirmed that the network successfully handled a massive DDoS attack that lasted several weeks in December 2025. At its peak, the attack reached approximately 6 terabits per second, but it did not affect the blockchain’s operation. The median slot latency remained at zero, indicating exceptional technical reliability of the network under critical conditions.

Yakovenko described the situation as the most serious active threat to Solana and suggested that malicious actors spent funds equivalent to the network’s revenue just to send traffic. Infrastructure provider Pipe Network confirmed these statements, noting that the median transaction confirmation time remained around 450 milliseconds, and the p90 metric did not exceed 700 milliseconds throughout the attack period.

From Disruptions to Resilience: How Solana Transformed

The current successful defense against the massive DDoS attack sharply contrasts with the network’s past experiences. In 2021-2022, Solana repeatedly suffered from similar incidents. The most critical was the September 2021 attack, which caused a 17-hour network outage amid a sell-off. In May 2022, another severe attack occurred, marking the seventh network disruption that year, leading to criticism of its reliability and architectural vulnerabilities.

Helius CEO Mert Mumtaz emphasized that the key difference lies in engineering improvements that transformed Solana: “The network withstood weeks of a colossal attack, but users didn’t even notice the attack thanks to the level of engineering work.” Since May 2023, Solana has not experienced any serious disruptions.

One of the main factors of improvement was the development of Firedancer — a new validator client created by Jump Crypto specifically to enhance network performance and resilience against such attacks.

Global Context of DDoS Incidents

Although the attack on Solana was extremely large-scale, it did not reach the size of the biggest DDoS incidents recorded in 2025. Cloudflare thwarted a series of attacks exceeding 29.7 Tbit/s, mostly organized by the Aisuru botnet. Microsoft Azure recently blocked an attack of 15.72 Tbit/s aimed at Australian infrastructure in October of that year.

Despite the unclear details of the attack on Solana (measurement methodology of 6 Tbit/s and attacker identities remain unknown), the Solana Foundation has not issued an official statement about the incident, and the network status page also shows no issues in December 2025.

Market Reaction and Current Network Status

SOL’s price movement remained virtually unchanged during and after the attack. As of March 2026, Solana is trading at $84.08, demonstrating investor confidence in the network despite past reliability issues. The network continues to show significant activity: recently, Solana reached a historical high of approximately $380,000 in daily payment volume, with a growth of about 750% in a week.

The successful defense against such a large-scale DDoS attack indicates that Solana has not only overcome critical issues from previous years but also developed an architecture capable of withstanding the greatest cyber threats. This marks an important milestone for the blockchain industry, which has traditionally suspected Solana of insufficient reliability and centralized network infrastructure.