What is the biggest email security risk?

Phishing is the biggest risk. Attackers impersonate trusted organizations to steal credentials or deliver malware. Combining spam filtering with user training is the most effective defense.

Is email encryption really necessary?

For sensitive information like financial data, personal information, or business secrets - yes. Regular email can be intercepted. Modern email providers make encryption easy to enable for messages that need it.

How often should we train employees on email security?

Short, frequent training works best. Monthly 5-minute reminders or quarterly 15-minute sessions are more effective than annual training. Share real examples of attacks targeting your industry to keep it relevant.

Are free email services secure enough for business?

Free services like Gmail offer good security, but business email solutions (Google Workspace, Microsoft 365) provide better administration, compliance features, and support. For businesses handling sensitive data, paid solutions are recommended.

What should I do if I suspect a security breach via email?

Immediately change the password of the affected account, enable 2FA if not already active, and scan devices for malware. Then check the mailbox for automatic forwarding rules and unusual filters or inbox rules; Safeonweb lists both checks. A rule like that keeps working after the password change, so the intruder keeps reading along. Notify your IT team. If customer data may be compromised, you may have legal notification obligations under GDPR.

Email Security: 7 Essential Tips

The 7 Essential Tips

Enable Spam Filtering

A good spam filter is your first line of defense. It blocks malicious emails before they ever reach your inbox.

Use your email provider's built-in spam filtering (Microsoft 365, Google Workspace)
Consider additional email security solutions for business accounts
Regularly check your spam folder for false positives
Report spam that slips through to improve filtering

Tip: Enable advanced phishing protection in your email settings. Both Microsoft 365 and Google Workspace offer this for free.

Use Strong, Unique Passwords + 2FA

Your email password is the key to your digital identity. If attackers get it, they can reset passwords for all your other accounts.

Use a password manager to generate and store unique passwords
Make passwords at least 12 characters with mixed characters
Enable two-factor authentication (2FA) on all email accounts
Use authenticator apps instead of SMS for 2FA when possible

Tip: With 2FA enabled, even if your password is stolen, attackers cannot access your account without the second factor.

Don't Click Suspicious Links (Hover First)

Phishing emails trick you into clicking malicious links. The simple habit of hovering before clicking can save you from most attacks.

Hover over links to see the actual URL before clicking
Look for misspellings in domain names (paypa1.com vs paypal.com)
Be wary of shortened URLs (bit.ly, tinyurl) in emails
Even emails from trusted official domains can be forged if that organization suffers a breach of their email signing keys (DKIM). Verify any unexpected urgent request by phone before acting
When in doubt, navigate directly to the website instead of clicking

Tip: On mobile, press and hold a link to preview the URL without opening it.

Verify Unexpected Attachments

Email attachments are a common way to deliver malware. Even files from known contacts can be dangerous if their account was compromised.

Never open attachments you weren't expecting
Be especially careful with .exe, .zip, .docm (macro-enabled) files
Verify with the sender through a different channel before opening
Use your antivirus to scan attachments before opening
Keep your mail apps and operating system updated, so a malicious file has fewer known holes to use

Tip: If a colleague sends an unusual attachment, call them to verify. Their account may have been hacked.

Use Email Encryption for Sensitive Data

Regular email is like a postcard - anyone along the way can read it. Encryption ensures only the intended recipient can read your message.

Use your email provider's built-in encryption features
Microsoft 365 and Google Workspace support encrypted email
Consider end-to-end encryption for highly sensitive communications
Never send passwords, financial data, or personal info in plain email

Tip: For sensitive documents, use secure file sharing links instead of email attachments.

Stop Others Mailing in Your Name (SPF, DKIM, DMARC)

Email was built with no check on who the sender is. Without these three settings on your domain, anyone can send a message that shows your address as the sender. Think of a fake invoice to your customers with the fraudster's bank account on it. All three are records in your domain's DNS, set once by whoever manages your domain.

SPF: the list of servers that may send email for your domain
DKIM: a digital signature that lets the receiver check that the message came from your domain and was not changed on the way
DMARC: tells the receiving mail server what to do when those checks fail: nothing, the spam folder, or reject
A DMARC policy of "none" only watches. Only "quarantine" or "reject" asks the receiver to keep a fake out of the inbox

Tip: These settings stop nothing once someone is inside your mailbox: a hacked account sends real mail. That is what 2FA (tip 2) is for.

Train Employees to Recognize Threats

Technology alone cannot stop all threats. Your team needs to recognize and report suspicious emails to prevent successful attacks.

Conduct regular security awareness training
Share examples of real phishing attempts targeting your industry
Create a simple process to report suspicious emails
Reward employees who catch and report phishing attempts

Tip: Short, frequent training (5 minutes monthly) is more effective than annual security seminars.

Quick Checklist

Review your email security with this quick checklist:

Spam filtering enabled and configured
Strong, unique passwords on all email accounts
Two-factor authentication enabled
Team trained to hover before clicking links
Process for verifying unexpected attachments
Encryption available for sensitive communications
SPF, DKIM and DMARC set on your domain, with DMARC at quarantine or reject
Regular security awareness reminders

What's Next?

Email security is just one piece of your cybersecurity puzzle. To build comprehensive protection: Start by enabling two-factor authentication on all accounts and explore the CyberFundamentals framework for structured guidance.

1 Review your overall security posture with a risk assessment
2 Implement a security policy for your organization
3 Consider compliance frameworks like CyberFundamentals for structured guidance

Ready to Improve Your Email Security?

Easy Cyber Protection helps you with a step-by-step approach to protect your organization from email threats and other cyber risks.