Corero's Annual DDoS research highlights attacker behaviour during pandemic as staff embrace home working 400% Increase in OpenVPN Attacks and 86% rise in short duration floods while the risk of a repeat attack within a week grows by two thirds News provided by Share this article Share this article AMERSHAM, England, May 11, 2021 /PRNewswire/ -- Corero Network Security, a leading provider of real-time, high-performance, automatic Distributed Denial of Service (DDoS) cyber defense solutions has published the latest edition of its annual DDoS Threat Intelligence Report that compiles the latest trends, observations, predictions, and recommendations based on DDoS attacks against Corero customers during 2020. The report, now in its 6th year, highlights that DDoS threats are growing in sophistication, size, and frequency. Yet 2020, also reveals changes in attacker behaviour during the pandemic including a year-over-year increase of nearly 400% in the use of OpenVPN reflections as an attack vector.