AWS Cloud Cost Optimization & Security Best Practices for Growing Businesses

As businesses scale up their online operations, AWS bills often spiral out of control due to unutilized EC2 instances, unattached EBS volumes, and inefficient database queries.

At Prydelix Digital, we regularly audit AWS and Cloud infrastructure for global clients, helping them slash hosting expenses by 30-50% while improving security compliance. Here are the exact strategies we deploy.

1. Right-Sizing & Auto Scaling Groups

Running over-provisioned `t3.xlarge` or `m5.large` EC2 instances 24/7 when average CPU utilization is under 15% wastes thousands of dollars.

• Auto Scaling: Scale EC2 instances up during peak traffic hours and scale down during off-peak periods automatically.
• ARM-Based Graviton (t4g/m6g): Switching from x86 EC2 instances to AWS Graviton processors delivers up to 40% better price-performance ratio.

2. CloudFront Edge Caching & S3 Savings

Serving assets directly from S3 or EC2 triggers high data transfer costs ($0.09 per GB out). Placing AWS CloudFront CDN in front of your storage caches assets globally, slashing origin fetch costs to near zero.

"Cloud security and cost optimization go hand in hand. Over-provisioned servers are often unmonitored attack vectors." — Lalit Shakya

3. Server Security & Firewall Hardening

1. Close SSH port 22 to the public internet; use AWS Systems Manager (SSM) Session Manager instead.
2. Configure AWS WAF (Web Application Firewall) to block rate-limit abuse, SQL injection, and automated bot scrapers.
3. Enable AWS GuardDuty for intelligent threat detection.