Introduction
Once you send an email, you cannot control how the recipient uses it. This can be concerning if the email contains sensitive information or documents that can be leaked or misused. For secure communication, Gmail offers a "confidential mode" feature, allowing users to share sensitive data without worrying about privacy.
Read this article till the end to find out what Gmail confidential mode is, how it works, and why you should consider using it. Also, learn why emails sent in confidential mode are not totally safe and what practices you can follow for confidential emails.
What is Confidential Mode in Gmail?
Confidential mode is a free, powerful feature provided by Gmail for safe and secure communication. With this mode enabled, you can set an expiration date for your email or choose to withdraw a sent email anytime. Gmail prevents recipients from forwarding, copying, or downloading confidential emails.
Confidential emails are useful when sharing sensitive information, such as personal data, financial details, or business communication. Organizations can utilize it to ensure their private data remains safe from unauthorized access.
Features
Gmail confidential mode comes with several features for secure communication:
Email Expiration Date
Gmail provides the option to set expiration dates for confidential emails to grant only limited-time access. It can be set to expire in one day or five years. The emails expire after the set time, meaning the recipient can no longer view the email or its attachments.
Note: Set the expiration date carefully since it cannot be changed once the email is sent.
Gmail takes a step further and allows you to revoke access to the email and its content before expiration. This is particularly useful if you accidentally send a sensitive email to an unintended recipient or the receiver's account is hacked, risking data privacy.
Note: Avoid deleting confidential emails before expiration. Once you delete the sent email, you won't have the option to revoke access earlier.
Limited Actions
Recipients of confidential emails have limited access to the email and any shared attachments. Most of the actions allowed with non-restricted emails are disabled. The recipients cannot copy, download, forward, or print the email and its content. This gives the sender maximum control over the data they share.
SMS Passcode (Optional)
Gmail provides an optional SMS passcode requirement that serves as an authentication feature. You can enable it if you need an extra layer of security for your emails. This way, the email cannot be viewed unless the passcode sent on the phone is entered first. The recipient must enter the passcode each time they need to access the email.
The need to enter a passcode every single time might seem inconvenient. However, it ensures that only the authorized recipients can view the email and protects the email content in case the recipient's email account is hacked.
How to Use Gmail Confidential Mode
Here's a step-by-step tutorial on how to use the Confidential mode in Gmail to send emails securely.
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Open Gmail.
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Click "Compose" to create a new email.
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Click the "lock" icon at the bottom of the email window.
- Select the expiration date for the email. It can range from one day up to five years.
- Choose whether you want the confidential email to be passcode-protected.(Optional)
- No SMS Passcode: Gmail users can open the email directly. Non-Gmail users will receive a passcode via email.
- SMS Passcode: The recipient will need to enter a passcode sent to their phone number each time they access the email.
Note: To protect your email with a passcode, you must know the recipient's phone number.
- Click "Save" to turn on confidential mode. The new window will look like this.
- Click "Send" to transmit the confidential email.
How to Revoke Access to a Confidential Email in Gmail
Access to Gmail confidential emails is automatically revoked on the expiration date. Once expired, the recipient can no longer view the email or its attachments.
You cannot change the expiration date after sending. However, you can manually revoke access at any time. For example, if you sent the email to the wrong person or suspect the recipient's account has been compromised.
Here's how you can revoke access to a confidential email in Gmail:
- Open Gmail.
- From the left menu, open the Sent folder.
- Find and open the confidential email.
- Click Remove access.
Important: Don't delete the confidential email from your Sent folder. Once deleted, the Remove Access option will no longer be available.
Benefits of Gmail Confidential Mode
Still sharing confidential information using standard emails? The following points will hopefully convince you to switch to Gmail confidential mode.
Enhanced Security
Confidential mode offers security for sharing sensitive data that requires maximum protection. It allows users to easily share confidential information without worrying about data compromise or information leaks.
Ease of Use
Gmail's confidential mode is a free built-in feature. It is straightforward to use and doesn't require any third-party tool.
Customization Control
Senders can adjust the settings for confidential emails according to their requirements. Gmail allows control over when the email expires and setting a passcode verification requirement.
Control over Shared Data
With standard emails, senders cannot control how the emails or shared files are accessed. The recipients have full access rights and can perform all standard actions, such as forwarding or copying the emails and attachments.
However, Gmail's confidential mode allows limited actions on emails and attachments. The email owner decides when the email will expire and can revoke access anytime.
Limitations of Gmail Confidential Mode
Although Gmail confidential mode provides numerous email security benefits, it has some shortcomings:
1. Allows Screenshots
Although recipients cannot forward, copy, or download confidential emails or attachments, they can take screenshots of the email content. This risks the confidentiality of the email.
2. No End-to-End Encryption
Gmail's confidential mode is not entirely secure as it doesn't offer end-to-end encryption.
3. Passcode Issues
If the recipient's phone number is no longer operational, they cannot receive the passcode to read the email.
Additionally, Gmail's SMS passcode feature is only supported in select regions: North America, South America, Europe, Australia, Asia: India, Korea and Japan. If the recipient's number is outside these regions, they won't receive the passcode and will be unable to view the email.
In such cases, you'll have to send the confidential email without requiring an SMS passcode.
4. No Option for Scheduling
Currently, Gmail doesn't support scheduling for confidential emails. This can be inconvenient in situations when you need to send a confidential email at a specific time.
Email scheduling is supported only for regular emails, but not for confidential emails.
Best Practices for Gmail Confidential Mode
Confidential mode in Gmail is not 100% secure. However, you can incorporate secure email practices to btter protect sensitive emails.
1. Carefully Set the Expiration Date
Do not set a date that causes the email to expire too early or too far in the future—scheduling it to expire too late risks the email's privacy, as it will stay in the recipient's inbox for too long.
2. Verify Details Before Sending
Carefully review all the details before sending the confidential email. Ensure it is intended for the correct recipient to avoid sending sensitive information to the wrong email address.
3.Secure Your Email Account
Your email account should be secure if you use it to send private information. Use a strong and unique password and enable two-factor authentication. Even if you use Gmail confidential mode for sharing sensitive information or documents, your data will be at risk if your account is compromised.
Conclusion
Gmail confidential mode is a useful feature for anyone who needs to share sensitive information over email. It gives you control over how your emails are accessed, letting you set expiration dates, revoke access at any time, and restrict recipients from forwarding, copying, or downloading your content.
While it is not a completely secure solution, it lacks end-to-end encryption and cannot prevent screenshots, it is still a significant step up from sending regular emails. Combined with secure email practices, Gmail confidential mode can be an effective tool for protecting sensitive communication.
