AWS Security Blog

Governance among IT teams has become increasingly challenging, especially when dealing with application deployments that involve many different technologies. For example, consider the case of trying to collocate multiple applications on a shared operating system. Accidental conflicts can stem from the applications themselves, or the underlying libraries and network ports they rely on. The likelihood […]

As a security best practice, AWS recommends writing AWS Identity and Access Management (IAM) policies that adhere to the principle of least privilege, which means granting only the permissions required to perform a specific task. However, verifying which permissions an application or user actually needs can be a challenge. To help you determine which permissions […]

AWS Directory Service now offers an additional directory type. Now you can launch and run a Microsoft Active Directory (AD) as a managed service in the AWS cloud. AWS Directory Service for Microsoft Active Directory (Enterprise Edition), also referred to as Microsoft AD, is powered by Windows Server 2012 R2. When you select and launch […]

November 1, 2021: AWS KMS is replacing the term customer master key (CMK) with AWS KMS key and KMS key. The concept has not changed. To prevent breaking changes, AWS KMS is keeping some variations of this term. More info. We’re happy to make two announcements about what’s new in AWS Key Management Service (KMS). […]

When accessing AWS resources in an organization, we recommend that you have a standard and repeatable authentication method for purposes of security, auditability, compliance, and the capability to support role and account separation. As part of my AWS Professional Services engagements, I have helped AWS customers establish such an authentication mechanism via federated access to […]

I am happy to announce that AWS has achieved ISO 27017 certification. This new criterion builds upon the ISO 27002 standard, with additional controls specifically applicable to cloud service providers. AWS is the first cloud provider to obtain this certification, which is available now for download on our AWS Cloud Compliance site. Additionally, we’ve posted an FAQ […]

Many AWS customers keep their environments separated from each other: development resources do not interact with production, and vice versa. One way to achieve this separation is by using multiple AWS accounts. Though this approach does help with resource isolation, it can increase your user management because each AWS account can have its own AWS […]

Great security research combines extremely high levels of creativity, paranoia, and attention to detail. All of these qualities are in evidence in two new research papers about how s2n, our Open Source implementation of the SSL/TLS protocols, handles the Lucky 13 attack from 2013. The research found issues with how s2n mitigates Lucky 13 and improvements that […]

Today, I’m happy to announce the completion of another successful Service Organization Controls (SOC) assessment. The AWS SOC program is an intense, period-in-time audit performed every six months. We have been releasing SOC Reports (or their SAS 70 predecessors) regularly since 2009, and we have, over the years, gradually built in more controls and added […]

Today, AWS introduced the preview of Short Message Service (SMS) support for multi-factor authentication (MFA), making it easier for you to implement a security best practice. Until now, you could enable MFA for AWS Identity and Access Management (IAM) users only with hardware or virtual MFA tokens, but this new feature enables you to use […]