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Fastly Security Research Team

October 19
Learn how User-Agent Client Hints work, explore privacy-related features and concerns, and how the partial adoption and incompleteness of this emerging standard can be used to detect…
August 29
If your application is on the internet, chances are it has been subjected to nefarious automation. These events can include many different attacks – including content scraping, credential…
July 20
TLS fingerprinting has become a prevalent tool to help security defenders identify what clients are talking to their server infrastructure.
May 3
Threat hunting is the practice of looking for active attackers who have possibly penetrated security boundaries within an organization. WAF data can be a valuable resource in threat hunting…
March 31
In this post, we review details for two RCE vulnerabilities impacting Spring Cloud and Spring Framework, including how Fastly customers can protect themselves from this vulnerability.
January 20
Open URL redirection is a class of web app security problems that make it easier for attackers to direct users to malicious resources. Here are some examples of how they do it and what you…
January 12
There are many benefits to adopting GraphQL, but its security implications are less understood. In this post, we’ll explore those implications and offer guidance on which defaults and…
December 14, 2021
We’re sharing our latest data and new insights into the Log4j/Log4Shell vulnerability (CVE-2021-44228 + CVE-2021-45046) in this post in order to help the engineering community cope with the…
December 14, 2021
Our new WAF efficacy framework provides a standardized way to measure the effectiveness of a WAF’s detection capabilities through continuous verification and validation. Here’s how it works.
December 10, 2021
CVE-2021-44228 is a Remote Code Execution vulnerability in the Apache Log4j library being actively exploited. We provide our observations into the exploit and a summary of its impact.
November 11, 2021
Compute@Edge, our serverless compute environment, can be used to solve headaches dealing with attackers looking to modify and manipulate resources. In this post, we tell you how.
October 18, 2021
Our Security Research Team provides guidance on how to address CVE-2021-40438, a vulnerability in Apache HTTP Server version 2.4.48 and earlier, by patching impacted version(s) and enabling…