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The console won't let me delete the Security Group even though there are no running EC2 instances associated with it. It simply says &quot;These security groups are default security groups, which cannot be deleted&quot;. Oh well, no biggie. I'll start looking towards the CLI to see if there is a way to remove this bad boy. Thanks for your help.
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The console won't let me delete the Security Group even though there are no running EC2 instances associated with it. It simply says "These security groups are default security groups, which cannot be deleted". Oh well, no biggie. I'll start looking towards the CLI to see if there is a way to remove this bad boy. Thanks for your help.

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Oh, I just remembered that the default groups can't be removed! &nbsp;You don't have to use them and can remove any rules. &nbsp;I normally just rename them as &quot;zDo Not Use&quot;.
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Oh, I just remembered that the default groups can't be removed!  You don't have to use them and can remove any rules.  I normally just rename them as "zDo Not Use".

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I'm doing some clean-up on an AWS account that I inherited.<br />
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There is a &quot;Default&quot; Security Group that doesn't have a <b>VPC ID</b> associated with it (<i>screenshot attached</i>). &nbsp;This leads me to believe that this was setup a long time ago. <br />
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There was a clue in an SSH inbound rule (a static IP) that it was setup around 2013. <br />
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<i>Do you think it's safe for me to delete this Security Group?</i> No running AMI's are associated with this Security Group.<br />
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Thank you for your help!<br />
<br />
<br />
...
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I'm doing some clean-up on an AWS account that I inherited.

There is a "Default" Security Group that doesn't have a VPC ID associated with it (screenshot attached).  This leads me to believe that this was setup a long time ago. 

There was a clue in an SSH inbound rule (a static IP) that it was setup around 2013. 

Do you think it's safe for me to delete this Security Group? No running AMI's are associated with this Security Group.

Thank you for your help!


...

AWS Default Security Group Question

Amazon Web Services (AWS), is a collection of remote computing services, also called web services, that make up a cloud-computing platform  operated from 11 geographical regions across the world. The most central and well-known of these services include Amazon Elastic Compute Cloud, also known as "EC2", and Amazon Simple Storage Service, also known as "S3". Other services include Elastic MapReduce (EMR), Route 53 (a DNS web service),  provides a highly available and scalable Domain Name System (DNS) web service, Virtual Private Cloud (VPC), storage, database, deployment and application services.

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.