Email Security: Protect Your Digital Communication

Common threats to your email

Email remains one of the most common tools for digital communication, both privately and in the workplace. This also makes it a primary target for cybercriminals. The three biggest threats to your email are phishing, spam and malware.

Phishing involves an attacker pretending to be someone you trust, such as your bank or a government agency, and trying to trick you into revealing passwords or other sensitive information. Spam is unwanted advertising that at best is annoying and at worst contains malicious links. Malware can be sent as email attachments and infect your computer with viruses, ransomware or spyware when you open them.

Understanding these threats is the first step towards protecting yourself. One of the simplest measures is to minimise where your email address is available by using temporary addresses for less important registrations.

How to recognise phishing

Phishing attacks are becoming increasingly sophisticated, but there are still clear warning signs you can look for. Learn to always be sceptical of unexpected emails, especially those that urge quick action.

• Incorrect sender address: Check the actual email address, not just the name. Legitimate companies do not send from free email services or addresses with typos like "paypa1.com" instead of "paypal.com".
• Urgent language: "Your account will be closed within 24 hours!" or "Act immediately!" are classic phishing techniques that exploit your fear to make you click without thinking.
• Suspicious links: Hover over links without clicking to see where they actually lead. If the URL doesn't match the company or looks strange, don't click.
• Grammatical errors: Professional companies rarely have serious spelling mistakes in their communications. Poor grammar is often a sign of phishing.
• Request for sensitive information: No serious company asks you to send passwords, social security numbers or credit card information via email.

If you are unsure about a message, contact the company directly through their official website instead of clicking on links in the email. Read more about how to protect yourself in our privacy guide.

Spam and how to avoid it

Spam is more than just annoying. According to studies, unwanted email accounts for over 45% of all email traffic globally. Every time you enter your email address on a new website, the risk increases that it will end up on spam lists that are resold between marketers and, in the worst case, cybercriminals.

The most effective strategy for avoiding spam is to limit where you share your real email address. Use Temp-Mail.se for all registrations where you don't need long-term access. For services you already subscribe to, use the unsubscribe link at the bottom of the emails. Also consistently mark spam in your email client so the filter learns to block similar messages in the future. Read about all the use cases where temporary email can protect you.

Email encryption explained

Encryption is the technology that makes your email communication unreadable to unauthorised parties. There are two main levels of encryption that protect your email.

Transport encryption (TLS/HTTPS) protects email while it is being transferred between servers. It's like sending a letter in a sealed envelope instead of on a postcard. Most modern email services use TLS as standard. Temp-Mail.se uses HTTPS throughout to ensure that all data between your browser and our servers is encrypted.

End-to-end encryption (E2EE) goes a step further and ensures that only the sender and recipient can read the message. Services like ProtonMail offer this as standard. For sensitive communication, E2EE is recommended, but for everyday verifications and registrations, TLS encryption is more than sufficient.

Data breaches and leaked email addresses

Data breaches are one of the biggest threats to your email security. Every year, hundreds of major breaches are reported where millions of users' email addresses and passwords are exposed. Well-known breaches have affected companies like LinkedIn, Adobe, Yahoo and many more.

You can check if your email address has been involved in a known data breach by visiting the service Have I Been Pwned (haveibeenpwned.com). If your address is in their database, you should immediately change passwords on all services where you have used the same login credentials.

To reduce the risk in the future, use unique passwords for each service, enable two-factor authentication and use temporary email addresses for services you don't fully trust. This way you protect your primary email identity even if one of the services you registered with suffers a breach.

Temporary email as a security layer

Temporary email from Temp-Mail.se acts as an extra security layer in your digital daily life. By using disposable addresses for registrations, newsletters and testing new services, you create a buffer zone between your real identity and potential threats.

If a website where you used a temporary address suffers a data breach, your real email is not affected. If the address ends up on a spam list, it's an address that no longer exists. And if someone tries to use the address for phishing, the message goes nowhere. It's a simple but powerful strategy that complements your other security measures. Explore how the service works to get started.

Best practices for email security

To keep your email secure, you need a combination of good tools and healthy habits. Here are the most important measures you can take:

• Use strong, unique passwords for each email account. A password manager makes this easy and practical.
• Enable two-factor authentication on all email accounts, preferably with an authenticator app rather than SMS.
• Never open suspicious attachments from unknown senders. Even familiar senders may have been hacked.
• Don't click on links in unexpected emails without first verifying the sender and the URL.
• Keep your email client updated with the latest security updates for best protection.
• Use temporary email addresses for registrations on websites you don't fully trust.
• Review and clean up regularly old accounts you no longer use that are linked to your email.

These measures, combined with awareness of common threats, give you a strong defence against most email-related security risks.

What to do if your email has been hacked?

If you suspect that someone unauthorised has gained access to your email account, it's important to act quickly and methodically. The faster you act, the less damage the attacker can do.

1. Change your password immediately: Choose a new, strong password you have never used before. If you can't log in, use your email provider's account recovery feature.
2. Enable two-factor authentication: If not already enabled, turn on 2FA immediately after changing your password to prevent future breaches.
3. Check account activity: Review login history and active sessions. Log out all sessions except your current one.
4. Review forwarding rules: Hackers often set up automatic forwarding of your email. Check and remove any unknown forwarding rules.
5. Change passwords on linked services: All accounts using the same password or linked to the hacked email address should get new passwords immediately.
6. Warn your contacts: Inform your contacts that your account may have been used to send phishing or spam.
7. Report to authorities if needed: If you have suffered financial damage or identity theft, file a police report.

To prevent it from happening again, consider separating your digital identities by using your primary email only for important accounts and temporary email for everything else. Read more about how to protect your digital privacy in our privacy guide, visit our FAQ for common questions, or explore our blog for the latest tips on digital security.