DNS-based DDoS amplification attacks have significantly increased in the recent months, targeting vulnerable home routers worldwide.
NSFOCUS released its DDoS Threat Report 2013, which details attack trends and methodologies over the past year.
Basecamp, formerly known as 37signals, has managed to largely mitigate a DDoS attack that started today (March 24) at 8:46 central time and which made its services unavailable for users for a few hours.
Prolexic issued a high alert threat advisory on NTP amplification DDoS attacks.
DNS and NTP servers are not the only publicly accessible resources that can be misused to amplify DDoS attacks.