The acronym DDoS stands for Distributed Denial of Service. A denial of service attack is a form of cyber attack which uses overload as means to take down targets. A lot of requests are sent to a target machine which causes the target machine to be unable to handle all requests which in turn can cause strange behavior or downtime. The Distributed part of this form of attack lies in the fact that the requests are sent from multiple sources. This makes evasion and defense against this type of attack particularly tricky.
How does this affect you?
Savvii makes use of several different platforms and locations for their data. We use the servers of Rackspace, Linode and DigitalOcean. These parties are long standing players in the hosting business and know what they're doing. Their systems are largely protected against DDoS attacks and their engineers are well trained to mitigate any attacks. But as stated previously: this type of attack is very difficult to completely mitigate and even the large players will experience service interruptions because of this.