How to Secure Your Terraform Plan with CheckOv

It starts with a single line of code. A developer hardcodes a credential in an AWS EC2 user data script (a mistake made in 26% of cases), and suddenly, your entire infrastructure is at risk. These aren't hypothetical scenarios; they are the root cause of 95% of secret exposures. Every unchecked configuration is a potential backdoor. At Defa3, we specialize in closing these security gaps before they can be exploited. From securing AWS task definitions to locking down IaC templates, our experts help you build a resilient and secure cloud infrastructure. Stop chasing alerts and start preventing breaches. Contact us

𝐀𝐖𝐒 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐆𝐫𝐨𝐮𝐩𝐬: 𝐓𝐡𝐞 𝐅𝐢𝐫𝐞𝐰𝐚𝐥𝐥 𝐨𝐟 𝐭𝐡𝐞 𝐂𝐥𝐨𝐮𝐝 One of the most important parts of AWS networking is 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐆𝐫𝐨𝐮𝐩𝐬 the rules that control who and what can talk to your instances. Think of them as 𝐯𝐢𝐫𝐭𝐮𝐚𝐥 𝐟𝐢𝐫𝐞𝐰𝐚𝐥𝐥𝐬 for your EC2s.   They decide what’s allowed 𝑖𝑛 and what’s allowed 𝑜𝑢𝑡. Here’s what stood out for me: 🔸They only use 𝐚𝐥𝐥𝐨𝐰 𝐫𝐮𝐥𝐞𝐬: anything not explicitly allowed is automatically blocked. 🔸 𝐈𝐧𝐛𝐨𝐮𝐧𝐝 𝐫𝐮𝐥𝐞𝐬: define what traffic can reach your instance. 🔸 𝐎𝐮𝐭𝐛𝐨𝐮𝐧𝐝 𝐫𝐮𝐥𝐞𝐬: define what your instance can talk to. 🔸 And importantly, they’re 𝐬𝐭𝐚𝐭𝐞𝐟𝐮𝐥: if traffic is allowed in, the response traffic is automatically allowed out. Example:   If you’re running a web server, you’d open 𝐩𝐨𝐫𝐭 𝟖𝟎 (𝐇𝐓𝐓𝐏) or 𝟒𝟒𝟑 (𝐇𝐓𝐓𝐏𝐒), but keep everything else locked down. Simple, clear, and secure. 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐆𝐫𝐨𝐮𝐩𝐬 are one of those foundational AWS features that look simple at first but become crucial as you build more complex systems. #aws #security #devops #cloud #CoderCo

☁️ AWS Rewind – Day 14: Ensuring Security with AWS CloudTrail Today’s focus was on AWS CloudTrail — the service that records every API call and activity across your AWS environment. I explored how CloudTrail helps track user actions, detect anomalies, and support compliance with detailed event logs. Setting up a new trail, storing logs in S3, and analyzing events through CloudTrail Insights gave me a clear picture of how visibility builds accountability in the cloud. 💡 Key Takeaways: CloudTrail = transparency + traceability for AWS actions. Every configuration change leaves a record — crucial for audits and incident response. Security is strongest when backed by observability and documentation. Today reinforced that cloud security isn’t just about prevention — it’s about awareness and traceability. #AWS #CloudTrail #CloudSecurity #Compliance #Monitoring #LearningJourney #Day14

Some really good advice in here around what to do ( and what not to do ) when implementing a cloud security platform... Paul Schwarzenberger has now gone through this at 3 separate organizations and talks about how "context" helped drop thousands of critical vulnerabilities into a handful of prioritized risks worth addressing. My favorite bit was: "the cultural change to move cloud security from the specialist endeavor of an overworked team, to democratization where each developer team feels a sense of ownership of the security of their application or system." He also covers various topics across multi-cloud, terraform, kubernetes, code repos, and remediation automation. https://lnkd.in/eEhUq9rV

A classic lesson in security strategy: Success is not about checking the compliance box; it's about closing the most critical, exploitable gaps. This jump from 42% to 90%+ in Azure Entra posture is a real-world example of what specialized Identity Governance achieves. As security leaders, we often talk about Cloud Misconfigurations, but the biggest failure is often Identity Misconfiguration (overly permissive roles, lack of MFA/PIM). The key is the phrase "fixing what actually mattered". It speaks directly to: ☑️ Risk-Based Prioritization (not chasing low-value CVSS scores). ☑️ Zero Trust principles applied to the modern perimeter. This is the type of measurable, high-impact project that differentiates strategic security from mere operational overhead. If you’re only checking if your systems work, you're missing the attack surface that's currently on fire. Let's fix that. #IdentitySecurity #ZeroTrust #SecurityLeadership #vCISO

☁️ AWS Rewind – Day 15: Strengthening Access with AWS IAM Policies Today I revisited IAM Policies — the backbone of AWS access management. I practiced writing custom JSON policies, assigning them to roles, and testing how permissions flow between users, services, and resources. It was eye-opening to see how a single misplaced “Allow” or missing condition can alter the entire security posture. Understanding IAM deeply means understanding trust, permissions, and least privilege — the three pillars of cloud security. 💡 Key Takeaways: • IAM Policies define “who can do what, and where.” • Fine-grained access = stronger governance. • Testing policies before deployment prevents major access risks. Security starts with precision — and IAM is where that precision truly begins. #AWS #IAM #CloudSecurity #AccessManagement #LearningJourney #Day15 #Upskilling

Accidentally changed or deleted a security group rule? It happens, and it can cut off critical access fast. 22-time Microsoft MVP Brien Posey explains how to recover from an unintended Amazon Web Services (AWS) Security Group modification, whether you have AWS Config enabled or need to rely on CloudTrail logs. Learn how to identify the change, restore access safely, and prevent it from happening again: https://lnkd.in/dkbSm-Ca #AWS #CloudSecurity #SecurityGroups #CloudTrail #IncidentResponse

𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗚𝗿𝗼𝘂𝗽𝘀 𝘃𝘀 𝗡𝗔𝗖𝗟𝘀… Both control traffic in a VPC but they work at different layers. 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗚𝗿𝗼𝘂𝗽𝘀: Operates at the instance level. Stateful - if traffic is allowed in, the response is allowed out automatically. Supports Allow rules only. Best for controlling access to specific servers. 𝗡𝗔𝗖𝗟𝘀 (𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗔𝗖𝗟𝘀): Operates at the subnet level. Stateless - inbound and outbound rules must be defined separately. Supports Allow and Deny rules. Best for blocking or filtering traffic before it reaches any instance. Security Groups control traffic to a resource, while NACLs control traffic into the subnet before it reaches the resource. #AWS #Security #Networking #VPC #DevOps #Cloud

Cloud Security Using Open Source Software Implement Cloud Security Posture Management (#CSPM) using prowler; The popular open source cloud security scanning software. #cybersecurity #cloudsecurity #aws https://lnkd.in/dRJ3QEzi