According to data from the National Filtering Center in the NAWAS (NAWAS), the number of DDOS attacks significantly decreased in the second quarter of this year. Between April to June, the Center processed 419 attacks, a significant drop from the 556 attacks recorded in the previous quarter. The information was published by the Dutch Institute for information protection (nbip) and can be found here.
Historical data shows that this decline in attacks is in line with seasonal trends, where the number of attacks is typically higher in the first few months of the year compared to the second quarter.
Despite the overall decrease in the number of attacks, the second quarter saw a sharp rise in large-scale attacks exceeding 100 Gb/s. The most powerful attack reached 353 Gb/s. The most common types of attacks observed were DNS Amplification and Memcached Amplification.
These attacks are intensified by the fact that responses from NTP servers can be significantly larger than the initial queries, leading to a substantial increase in traffic volume by tens or hundreds of times. This flood of traffic overwhelms the victim’s servers, causing them to crash.