- 6 Tbps DDoS attack against Gcore among the largest incidents in the world
- Gcore defenses absorbed the flood using over 210 global points of presence
- More than half of malicious traffic originated from unsecured networks in Brazil
A game hosting provider has reportedly been hit by one of the largest distributed denial of service (DDoS) attacks ever recorded.
The attack is among the top ten DDoS incidents in history, exposing the growing risks facing online service providers and gaming infrastructure.
The affected company, 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 brief 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 in Brazil and almost 24% came from the United States, suggesting widespread exploitation of unsecured networks in those regions.
The attack was consistent with the activity of the AISURU botnet, which has been linked to several recent high-profile cyberattacks.
The scale and regional distribution point to a worrying evolution in the capacity of botnets, capable of launching high-intensity and short-duration attacks.
While this particular attack was successfully mitigated, the incident reflects a broader trend in which cybercriminals deploy short DDoS bursts to test the resiliency of enterprise hosting and 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 6 Tbps flood without interruption, using more than 210 PoPs worldwide and a filtering capacity of more than 200 Tbps.
Their data also shows a 41% increase in DDoS activity in a single quarter, with the technology and gaming sectors among the most frequently attacked.
However, experts warn that this event demonstrates a dangerous shift in cyber warfare tactics, where the goal is not just to disrupt but to investigate and exploit infrastructure weaknesses.
For web hosting providers, the implications go beyond downtime and bandwidth saturation.
Increasingly, DDoS attacks are part of multi-vector campaigns that can involve data theft, malware evasion, and ransomware protection challenges.
“This incident underscores a continued escalation in both the scale and sophistication of DDoS attacks,” said Andrey Slastenov, Head of Security at Gcore.
“Without robust and adaptable protection, organizations in the technology, hosting and enterprise sectors remain at risk.”
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