- 6 Tbps DDoS attack against Gcore is among the world’s biggest incidents
- Gcore’s defenses absorbed the flood using over 210 global Points of Presence
- Over half of the malicious traffic originated from unsecured networks in Brazil
A game hosting provider has reportedly been hit by one of the largest DDoS (Distributed Denial of Service) attacks ever recorded.
The attack is among the ten largest DDoS incidents in history and reveals the growing risks facing online service providers and gaming infrastructure.
The company’s hit, Gcore, says the event was a “short-burst volumetric flood” that lasted between 30 and 45 seconds and peaked at 6 Tbps with 5.3 billion packets per second.
A short but powerful DDoS attack
The attack primarily used the UDP protocol, a common choice for overwhelming targets with traffic.
Gcore’s analysis revealed that 51% of the malicious data originated from Brazil and nearly 24% came from the United States, suggesting widespread exploitation of unsecured networks across these regions.
The attack was consistent with activity from the AISURU botnet, which has been linked to several recent high-profile cyberattacks.
The scale and regional distribution point to a worrying evolution in botnet capabilities capable of launching high-intensity, short-duration strikes.
Although this particular attack was successfully mitigated, the incident reflects a broader trend in which cybercriminals deploy short DDoS bursts to test the resilience of hosting and corporate networks.
These preliminary attacks are often precursors to more complex operations that may involve malware infiltration or attempts to bypass ransomware protection systems.
Gcore said its global DDoS protection system absorbed the 6Tbps flood without interruption using 210+ PoPs worldwide and 200+Tbps filtering capacity.
Its data also shows a 41% increase in DDoS activity over a single quarter, with technology and gaming sectors among the most frequently attacked.
However, experts warn that this event demonstrates a dangerous shift in tactics for cyber warfare, where the goal is not just to disrupt, but to probe and exploit weaknesses in infrastructure.
For web hosting providers, the implications extend beyond downtime and bandwidth saturation.
DDoS attacks are increasingly part of multi-vector campaigns that can involve data theft, malware evasion and ransomware protection challenges.
“This incident underscores an ongoing escalation in both the scale and sophistication of DDoS attacks,” said Andrey Slastenov, chief security officer at Gcore.
“Without strong, adaptive protection, organizations across technology, hosting and enterprise sectors remain at risk.”
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