AWS Security Blog

Category: Amazon CloudFront

Updated Whitepaper Available: AWS Best Practices for DDoS Resiliency

AWS is committed to providing you high availability, security, and resiliency in the face of bad actors on the Internet. As part of this commitment, AWS provides tools, best practices, and AWS services that you can use to build distributed denial of services (DDoS)–resilient applications. We recently released the 2016 version of the AWS Best […]

How to Prevent Hotlinking by Using AWS WAF, Amazon CloudFront, and Referer Checking

At some point, you might have to deal with hotlinking: when third parties embed in their websites the content they find on your websites. The third-party website does not incur the cost of hosting the content, which means your website can end up paying for the content other sites use. Now, you can use AWS […]

How to Reduce Security Threats and Operating Costs Using AWS WAF and Amazon CloudFront

Note from July 3, 2017: The solution in this post has been integrated into AWS WAF Security Automations, and AWS maintains up-to-date solution code in the companion GitHub repository.   Some Internet operations trust that clients are “well behaved.” As an operator of a publicly accessible web application, for example, you have to trust that the clients […]

How to Automatically Update Your Security Groups for Amazon CloudFront and AWS WAF by Using AWS Lambda

Note from April 1, 2021: Before implementing the steps in this blog post, please request an EC2 limit increase for “rules per security group.” Ask for 220 rules per security group in the AWS Region where your security groups will be. Note from December 3, 2019: The features and services described in this post have […]