Hundreds of thousands of devices can be abused to amplify distributed denial-of-sevice (DDoS) attacks. Web Services Dynamic Discovery (WS-Discovery) is an UDP-based communications protocol used to automatically discover web-based services inside networks. Many devices come with insecure implementations that expose these protocols to the internet, allowing for attackers to abuse them in DDoS reflection attacks. Akamai researchers warn that attackers have already started abusing WSD as a DDoS amplification technique and are ramping up their attacks.”]