Mimecast Confesses that Cloud Mail Outage was DDoS Attack!

29 September 2015 Internet, IT & e-Discovery Blog Blog
Authors: Peter Vogel

The Mimecast Incident Report stated that the US Data Centers and disruption of millions of emails were caused by a DDoS (Distributed Denial of Service) attack on September 21 from “10:46 am EST – 5:32pm EST.”  The September 25, 2015 Incident Report summarized the incident as:

Customers using our US secure email gateway service experienced downtime related to the delivery and receipt of external email.

But the impact on US businesses was substantial and clearly proves the vulnerability of Mimecast and that bad people demonstrated how they could control Mimecast’s email customers.  So my prediction from my September 22 blog “Cloud Mail Outages Caused by Cyberattack?” was pretty much on point…however it was not that hard to figure out!

Mimecast made these promises about future prevention of other attacks:

Mimecast continues to make significant investments in security infrastructure and programs. Mimecast is committed to the continuous improvement to our security architecture and the independent verification of the controls in place. Mimecast will continue to engage key internal and external experts to provide consultancy to stay ahead of the moving threat landscape.

We have applied counter measures to protect against this type of attack in the future.

Only time will tell if Mimecast can avoid future DDoS attacks.

This blog is made available by Foley & Lardner LLP (“Foley” or “the Firm”) for informational purposes only. It is not meant to convey the Firm’s legal position on behalf of any client, nor is it intended to convey specific legal advice. Any opinions expressed in this article do not necessarily reflect the views of Foley & Lardner LLP, its partners, or its clients. Accordingly, do not act upon this information without seeking counsel from a licensed attorney. This blog is not intended to create, and receipt of it does not constitute, an attorney-client relationship. Communicating with Foley through this website by email, blog post, or otherwise, does not create an attorney-client relationship for any legal matter. Therefore, any communication or material you transmit to Foley through this blog, whether by email, blog post or any other manner, will not be treated as confidential or proprietary. The information on this blog is published “AS IS” and is not guaranteed to be complete, accurate, and or up-to-date. Foley makes no representations or warranties of any kind, express or implied, as to the operation or content of the site. Foley expressly disclaims all other guarantees, warranties, conditions and representations of any kind, either express or implied, whether arising under any statute, law, commercial use or otherwise, including implied warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event shall Foley or any of its partners, officers, employees, agents or affiliates be liable, directly or indirectly, under any theory of law (contract, tort, negligence or otherwise), to you or anyone else, for any claims, losses or damages, direct, indirect special, incidental, punitive or consequential, resulting from or occasioned by the creation, use of or reliance on this site (including information and other content) or any third party websites or the information, resources or material accessed through any such websites. In some jurisdictions, the contents of this blog may be considered Attorney Advertising. If applicable, please note that prior results do not guarantee a similar outcome. Photographs are for dramatization purposes only and may include models. Likenesses do not necessarily imply current client, partnership or employee status.


Related Services