Microsoft 365 Encryption: What Happens to Email Attachments?

The Impact of Applying Labels on Encrypted Office Documents

Question

You have a Microsoft 365 subscription with Microsoft 365 E5 licenses assigned to your users.

You have created a label that applies encryption.

You receive an email message with an encrypted Office document attached.

You apply the label you have created to the email.

What will happen with the attachment?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

Correct Answer: B

You can only apply one label for each email.

When you apply a label that applies encryption to an attachment that is already encrypted, the attachment will not inherit the label.Option A is incorrect.

The attachment will not inherit the label.

Option C is incorrect.

This is not a valid statement.

Option D is incorrect.

The attachment will not be corrupted.

To know more about sensitivity labels, please refer to the link below:

When you apply a label that applies encryption to an email message with an encrypted Office document attached, the attachment will inherit the label from the email message.

This means that the label will also apply encryption to the attachment, and the recipient will need to have the appropriate permissions to open the attachment. The label will control access to the attachment based on the policies and rules that you have defined for the label.

Option A, "The attachment inherits the label from the email message," is the correct answer. Option B, "The attachment does not inherit the label from the email message," is incorrect because labels can apply to attachments as well as email messages. Option C, "The attachment is multi-encrypted," is incorrect because the label will only apply the encryption that you have defined for the label. Option D, "The attachment gets corrupted," is also incorrect because applying a label to an email message should not cause any corruption to the attachment.