[2026 Guide] What Are the Three Email Safety Rules to Stay Safe?

The three most important email safety rules are simple: 

1. think before you click

2. never send sensitive information through email

3. protect your email account with a strong password and multi-factor authentication

As a bonus fourth rule, always verify unusual or high-risk requests through another communication channel before taking action.

Following these basic habits can help protect you from phishing, malware, credential theft, account takeovers, and other common email threats.

Rule 1: Think Before You Click

One of the most important email safety rules is to avoid automatically clicking links or opening attachments.

Phishing emails are designed to look legitimate. An attacker might pretend to be:

• Your bank

• Microsoft or Google

• A coworker

• Your boss

• A delivery company

• A vendor you regularly work with

The email may tell you that your account has been locked, a payment failed, or you need to review an urgent document.

Before clicking anything, check the sender, look for anything unusual in the message, and consider whether you were expecting the email. If you are unsure, go directly to the company's website instead of using the link in the email.

Be Especially Careful With Attachments

Attachments can also contain malware. Unexpected Word documents, PDFs, ZIP files, spreadsheets, and other files should be treated cautiously, especially when the sender is unfamiliar or the message creates a sense of urgency. When in doubt, confirm with the sender before opening the file.

Rule 2: Never Send Passwords or Sensitive Information by Email

Email is generally not the right place to exchange highly sensitive information.

Avoid emailing information such as:

• Passwords

• Multi-factor authentication codes

• Credit card information

• Social Security numbers

• Banking credentials

• Other login information

You should also be suspicious when someone asks for this information unexpectedly. A legitimate IT administrator, bank, or online service generally should not need you to send your password through email. If sensitive information needs to be shared, use the secure method provided by your organization or service provider.

Rule 3: Protect Your Email Account

Even perfect phishing awareness cannot protect you if an attacker obtains your email password. Start by creating a long, unique password that you do not use anywhere else. A password manager can generate and securely store random passwords so you do not have to remember each one.

You should also enable multi-factor authentication, or MFA. MFA requires an additional verification step after your password. Depending on the account, that might include an authenticator app, security key, passkey, or verification code.

This means that even if someone steals your password, they may still be unable to access your email account. That protection is especially important because your email account is often connected to password resets for dozens of other accounts.

Bonus Rule 4: Verify Unusual Requests Another Way

Email impersonation can sometimes be extremely convincing. Imagine receiving an email that appears to come from your CEO:

“Can you send this payment today? I need it handled immediately.”

The email address may look legitimate. The writing style may even sound like your CEO. Instead of relying entirely on the email, verify the request using another trusted communication method. Call the person, send them a text, or contact them through your company's messaging platform.

This rule is particularly important when an email involves:

• Wire transfers

• Banking changes

• Payroll changes

• Gift card purchases

• Password resets

• Sensitive company information

• Large purchases

• Changes to vendor payment details

A 30-second verification can prevent a very expensive mistake.

Common Email Warning Signs

You do not need to be a cybersecurity expert to identify many suspicious emails. Watch for messages that create unusual urgency, ask you to bypass normal procedures, request sensitive information, or direct you to log into an account unexpectedly.

Also pay attention to the sender's actual email address. Attackers frequently use domains that are only slightly different from legitimate ones.

For example, a fake domain might replace a letter or add an extra word that is easy to overlook.

Conclusion

The three email safety rules to remember are:

1. Think before you click links or attachments.

2. Never send passwords or sensitive information through email.

3. Use a strong, unique password and multi-factor authentication.

And remember the bonus rule: verify unusual or high-risk requests through another channel before acting.

These habits can prevent many of the most common email-based attacks, but email security is only one part of protecting your business.

If you want to understand where your organization may be exposed, Our team at Tech Kooks is offering free cybersecurity assessments to help identify security gaps, potential risks, and areas that may need improvement. It is a practical first step toward strengthening your overall cybersecurity posture. We are here to help however we best can.