The APAC region saw a 116% increase in DDoS attacks compared to last year, according to StormWall experts. Hacktivist groups linked to regional political tensions were responsible for the majority of attacks that were blocked, with the largest attack reaching 2.3 Tbp/s targeting a Chinese data center provider.
StormWall, a cybersecurity company that specializes in DDoS protection analyzed attack patterns targeting its clients across the Asia-Pacific region during the first half of 2025. They shared their findings in a semi-annual report.
According to StormWall data, 55% of all DDoS attacks in APAC targeted three industries: government sector (21%), telecommunications (18%), and finance (16%).
From a technical standpoint, API attacks increased by 63% year over year, and about 80% of L7 attacks involved botnets. However, perhaps the most significant trend is the 3,500-fold increase in probing attacks across all sectors. Hackers use these to map out defenses before main assaults. On average, probing lasted just 2.8 minutes and generated only 1.2 KB of traffic per target, scanning ports in just 0.5 seconds.
Looking at where the attacks happened, China was the most attacked country (22%), followed by India (19%), and then Singapore (16%). Indonesia saw the biggest jump (7% to 12% share), while traditional targets like Taiwan dropped from 9% to 4%.
“It’s a very complicated threat landscape,” says Ramil Khantimirov, founder of StormWall. “With the number of reconnaissance probing operations increasing a lot and the botnet power being four times greater than before, we’re facing the most challenging DDoS threat ever.”
You can read the full report here.
