The Shared Responsibility Model: Security OF vs IN the Cloud | AWS CLF-C02 Mastery

Master the Shared Responsibility Model — the single most-tested concept on the AWS Certified Cloud Practitioner exam. Learn who patches what, who owns the data, and who gets blamed when security fails. This hands-on lesson breaks down the exact boundary between AWS (security OF the cloud: hardware, hypervisor, physical infrastructure) and you (security IN the cloud: data, IAM, encryption, application code). We walk through EC2 (largest customer surface), RDS (AWS patches the database), Lambda and S3 (most abstracted), and the three things that NEVER move: your data, your IAM, your encryption choices. Key Topics: • AWS vs Customer Responsibility Across IaaS, PaaS, and Serverless • EC2, RDS, Lambda, and S3 Responsibility Splits • The Decision Rule: Who Patches the OS? • Public S3 Bucket Failures and the Capital One Breach • Shared Controls and Common Misunderstandings CHAPTERS: 0:00 Introduction 0:34 Previously On 1:00 Key Terms 1:44 The Auditor's Question 2:46 Two Halves, One Boundary 4:39 The Boundary Is Not Fixed 5:57 EC2: The Largest Customer Surface 8:04 RDS: The Boundary Moves Up 9:29 Lambda and S3: Most Abstracted 10:40 The Responsibility Spectrum 11:15 Three Things That Never Move 12:29 A Public S3 Bucket Is Always a Customer Failure 14:51 Shared Controls: Both Sides Contribute 16:06 Decision Rule: Who Patches the OS? 18:24 Exam Keyword Cues 19:08 Five Things to Remember RESOURCES: 🔗 AWS Certified Cloud Practitioner Exam: https://aws.amazon.com/certification/... 📋 Full Playlist: https://www.youtube.com/@StackLessons... ABOUT: StackLessons creates hands-on exam prep content for cloud & AI certifications. Like & Subscribe for more content! PRACTICE QUESTIONS: Need more practice questions? Visit https://certcompanion.com/exams #AWS #CloudPractitioner #SharedResponsibility 📌 Chapters 0:00 Introduction 0:34 Previously On 1:00 Key Terms 1:44 The Auditor's Question 2:46 Two Halves, One Boundary 4:39 The Boundary Is Not Fixed 5:57 EC2: The Largest Customer Surface 8:04 RDS: The Boundary Moves Up 9:29 Lambda and S3: Most Abstracted 10:40 The Responsibility Spectrum 11:15 Three Things That Never Move 12:29 A Public S3 Bucket Is Always a Customer Failure 14:51 Shared Controls: Both Sides Contribute 16:06 Decision Rule: Who Patches the OS? 18:24 Exam Keyword Cues 19:08 Five Things to Remember #AWS #CLFC02 #SharedResponsibility