Week 6 - Feb 3-9, 2026
Security Groups get a "Related Resources" tab showing all dependent resources, Security Agent adds shared VPC penetration testing, and Claude Opus 4.6 arrives in Amazon Bedrock.
Highlights
EC2/VPC Security Groups "Related Resources" Tab GA
A new consolidated view in EC2 and VPC consoles shows all resources depending on a specific security group. Eliminates manual cross-service checking before configuration changes - you can now see at a glance which EC2 instances, RDS databases, Lambda functions, and other resources use a given security group. Available in all commercial regions at no cost.
Security Agent: Penetration Tests on Shared VPCs
AWS Security Agent now enables penetration testing against VPC resources shared from other AWS accounts within the same organization. This supports multi-account security assessments without duplicating infrastructure.
Claude Opus 4.6 Available in Amazon Bedrock
Anthropic's Claude Opus 4.6 model is now available through Amazon Bedrock, along with AWS Builder ID Sign in with Apple support.
Key Takeaway
The Security Groups "Related Resources" tab is a small but impactful quality-of-life improvement. Before making security group changes, you can now see exactly what will break. This should reduce outages caused by removing rules that were still in use.
Need Custom Security Briefings?
These weekly digests are a starting point. Contact us for tailored threat briefings, security assessments, and architectural guidance for your AWS environment.