Akamai has released its latest State of the Internet Security Report, which provides insight into the global cloud security threat landscape.
The report showed that the threat posed by distributed denial of service (DDoS) and web application attacks continues to grow each quarter.
For the past three quarters, there has been a doubling in the number of DDoS attacks year-over-year.
While attackers favoured less powerful but longer duration attacks this quarter, the number of mega attacks continues to increase.
In Q2 2015, there were 12 attacks peaking at more than 100Gbps, and five attacks peaking at more than 50 Million packets per second (Mpps). Very few organisations have the capacity to withstand such attacks on their own.
The largest DDoS attack of Q2 2015 measured more than 240Gbps and persisted for more than 13 hours. Peak bandwidth is typically constrained to a one to two hour window.
Q2 2015 also saw one of the highest packet rate attacks ever recorded across the Prolexic Routed network, which peaked at 214Mpps. That attack volume is capable of taking out tier 1 routers, such as those used by Internet service providers.
DDoS attack activity set a new record in Q2 2015: increasing 132% compared to Q2 2014, and increasing 7% compared to Q1 2015.
Average peak attack bandwidth and volume increased slightly in Q2 2015 compared to Q1 2015, but remained significantly lower than the peak averages observed in Q2 2014.
SYN and Simple Service Discovery Protocol (SSDP) were the most common DDoS attack vectors this quarter – each accounting for approximately 16% of DDoS attack traffic.
Online gaming remained the most-targeted industry since Q2 2014, targeted in about 35% of DDoS attacks.
China has remained the top source of non-spoofed attack traffic for the past two quarters.