AWS Security ChangesHomeSearch

AWS AWSEC2: Clarify billing and host movement during instance hibernation

Service: AWSEC2 · 2026-08-16 · Documentation low

File: AWSEC2/latest/UserGuide/ec2-instance-lifecycle.md

Summary

Updated passive voice for consistency and clarified billing charges during instance hibernation states.

Security assessment

Changes focus on billing clarification and grammatical improvements (active to passive voice) without addressing vulnerabilities, security controls, or attack vectors.

Evidence

+When you hibernate your instance, it enters the `stopping` state, and then the `stopped` state. You are not charged for usage for a hibernated instance when it is in the `stopped` state, but you are charged while it is in the `stopping` state, unlike when you stop an instance without hibernating it.

Diff

diff --git a/AWSEC2/latest/UserGuide/ec2-instance-lifecycle.md b/AWSEC2/latest/UserGuide/ec2-instance-lifecycle.md
index 3a03ee647..fb0fd7c60 100644
--- a//AWSEC2/latest/UserGuide/ec2-instance-lifecycle.md
+++ b//AWSEC2/latest/UserGuide/ec2-instance-lifecycle.md
@@ -42 +42 @@ Reserved Instances that applied to terminated instances are billed until the end
-When you launch an instance, it enters the `pending` state. The instance type that you specified at launch determines the hardware of the host computer for your instance. We use the Amazon Machine Image (AMI) you specified at launch to boot the instance. After the instance is ready for you, it enters the `running` state. You can connect to your running instance and use it the way that you'd use a computer sitting in front of you.
+When you launch an instance, it enters the `pending` state. The instance type that you specified at launch determines the hardware of the host computer for your instance. The Amazon Machine Image (AMI) you specified at launch is used to boot the instance. After the instance is ready for you, it enters the `running` state. You can connect to your running instance and use it the way that you'd use a computer sitting in front of you.
@@ -62 +62 @@ For more details about stopping and starting an instance, see [Stop and start Am
-When you hibernate an instance, we signal the operating system to perform hibernation (suspend-to-disk), which saves the contents from the instance memory (RAM) to your Amazon EBS root volume. We persist the instance's Amazon EBS root volume and any attached Amazon EBS data volumes. When you start your instance, the Amazon EBS root volume is restored to its previous state and the RAM contents are reloaded. Previously attached data volumes are reattached and the instance retains its instance ID.
+When you hibernate an instance, the operating system is signaled to perform hibernation (suspend-to-disk), which saves the contents from the instance memory (RAM) to your Amazon EBS root volume. The instance's Amazon EBS root volume and any attached Amazon EBS data volumes are persisted. When you start your instance, the Amazon EBS root volume is restored to its previous state and the RAM contents are reloaded. Previously attached data volumes are reattached and the instance retains its instance ID.
@@ -64 +64 @@ When you hibernate an instance, we signal the operating system to perform hibern
-When you hibernate your instance, it enters the `stopping` state, and then the `stopped` state. We don't charge usage for a hibernated instance when it is in the `stopped` state, but we do charge while it is in the `stopping` state, unlike when you stop an instance without hibernating it. We don't charge usage for data transfer fees, but we do charge for the storage for any Amazon EBS volumes, including storage for the RAM data.
+When you hibernate your instance, it enters the `stopping` state, and then the `stopped` state. You are not charged for usage for a hibernated instance when it is in the `stopped` state, but you are charged while it is in the `stopping` state, unlike when you stop an instance without hibernating it. You are not charged for data transfer fees, but you are charged for the storage for any Amazon EBS volumes, including storage for the RAM data.
@@ -66 +66 @@ When you hibernate your instance, it enters the `stopping` state, and then the `
-When you start your hibernated instance, it enters the `pending` state, and we move the instance to a new host computer (though in some cases, it remains on the current host).
+When you start your hibernated instance, it enters the `pending` state, and the instance is moved to a new host computer (though in some cases, it remains on the current host).
@@ -102 +102 @@ Characteristic | Reboot | Stop/start (Amazon EBS-backed instances only) | Hibern
-Host computer |  The instance stays on the same host computer. |  We move the instance to a new host computer (though in some cases, it remains on the current host). |  We move the instance to a new host computer (though in some cases, it remains on the current host). |  None  
+Host computer |  The instance stays on the same host computer. |  The instance is moved to a new host computer (though in some cases, it remains on the current host). |  The instance is moved to a new host computer (though in some cases, it remains on the current host). |  None