Email security tips: How to protect your inbox and account

Hackers and scams built to steal your private info are getting smarter every day. Having an arsenal of email security tips can save you a lot of headaches and keep your private data secure. This guide will help you understand common threats, give you an easy-to-implement email security tips checklist, and walk you through the best defenses for your inbox. 

Email security tips checklist

Think of your inbox like your digital front door. A few simple everyday habits are all it takes to keep it locked up safe and running smoothly. Here are 11 easy ways to secure your email and keep your accounts safe:

• Give every email account its own distinct, hard-to-guess password

• Add an extra layer of security with two-factor authentication (2FA)

• Opt for passkeys when services offer them

• Double-check sender details and preview links before you tap or click

• Steer clear of unexpected file attachments

• Let spam filters catch suspicious mail automatically

• Avoid entering passwords or sensitive info directly from email links

• Check your account's recent login activity to spot unfamiliar devices

• Protect your connection with a VPN when using public networks

• Turn on automatic updates for your devices and apps

• Use different email addresses for work and personal life

What is email security?

Email security is the mix of tools and simple habits that keep your inbox and personal data safe. Part of it is automatic, like the built-in filters your email provider uses to stop scams and junk mail before they reach you. The other part comes down to your everyday habits, like setting solid passwords and checking twice before clicking a strange link.

It’s easy to assume an email breach is just someone reading your messages. But the real prize is your digital footprint. With it, attackers can piece together your habits, trace your linked accounts, and hijack your identity across the web. Locking down your inbox stops automated bots from connecting those dots.

Nobody is immune

Arguably, the biggest threat email poses is to businesses. A whopping 94% of organizations reportedly fell victim to scams in 2024 alone.

Why are businesses such a juicy target? Whether this is crumby passwords, or the human tendency to trust others, there are numerous ways colleagues can fall victim to an attack, and they aren’t all obvious. Small businesses can be particularly vulnerable to scam emails claiming to be from customers, service providers, and suppliers. 

Larger businesses, with specialist security teams, are not immune either. We only have to look at recent news to see examples of when email goes wrong for big business. A Singapore company was tricked into transferring $42.3 million to a fraudulent account via a spoofed supplier email. INTERPOL helped them get around 41 million back, but it was still an incredibly costly error.

The most common email threats

The are many types of email threats. The most common forms of email attack against businesses include:

• Phishing

• Malware

• Compromised business email

• Fake invoices

Top of the danger list is phishing, with 91% of cases involving data loss. An absolute nightmare in a world with increasing data protection laws, like GDPR and CCPA. But it isn’t as difficult as you’d think to mitigate the risk.

Security begins at home

Securing email needn’t be tricky. There are many things you can do to create an effective first line of defense — without costing you a thing except a small investment of time.

Phishing awareness

Here, a little training could save you a lot in terms of email safety. If you’re a solopreneur or small business, you’re already doing the right thing by reading this article! If you have a bigger team, consider sitting everyone down and going over exactly what phishing is, and the many forms it can take. While some may roll their eyes at the basics, as you drill into more detail about the many ways that phishing can manifest, and even expand into ‘whaling’, even those well-versed in cyber threats will get a refresher.

Humans, sadly, are the weak point when it comes to phishing. It relies on our psychology and the inherent trust we have in others. For this reason, never seeing the phishing message in the first place is a huge advantage — which is why you should look for an email provider that prioritizes a strong anti-spam filter among its features. More on that coming up.

Strong passwords

Training aside, the first line of defense is also the simplest to implement — a password. Being aware of how psychology can work against us is also vital here. For convenience, we all want to create something memorable, but that can be the antonym of security. Birthdays, email addresses, relatives' names, or important things in our lives, can all give human hackers a headstart. But of course, it's about more than that.

Where machines or scripts are used to hack, words themselves let us down — because ultimately, they are finite and we are more likely to choose some than others. Therefor, random combinations of numbers, symbols, and upper/lower letters make passwords harder to guess. Password managers are useful for generating unique passwords that are designed to be difficult to hack.

But for those who prefer a password that's easy to remember, a good alternative is using an entire memorable phrase as their password. The length makes it much more secure by definition. Adding one extra lowercase letter to a password makes it 26 times more difficult to crack. Adding three lowercase letters makes it 263 — which is 17,576 more possibilities. So the benefit of longer passwords is exponential.

Two-factor authentication

Two-factor authentication (2FA) is one of the best methods you can use to secure your account, and a must today. By requiring a secondary device to log in, like a phone or key, anyone without this hardware will be unable to do so, even if they crack the password. Additionally, if it's a live authentication on a phone, you will be made aware someone is trying to access your account and be able to take preventative measures (like password changes, or universal logouts) to address the issue.

But to make the most of 2FA, it’s vital to address a critical vulnerability: the IMAP, SMTP, and POP3 protocols. Put simply, these protocols allow you to connect to your email servers, especially using third-party systems — like Outlook. However, they come at a cost.

By allowing more devices to connect, you are creating more points of weakness, whether that’s unauthorized access, or downloading emails to insecure devices. POP3 is especially bad because it does not encrypt data that’s being transmitted. This means that the emails, including their content and credentials, can be easily intercepted by malicious actors. It also tends to delete emails from the server as they’re transferred, which can lead to loss of data.

Turning all of these protocols off at the highest level is a good way to secure your company email accounts. If you do need to use one, consider IMAP over SSL/TLS (also known as IMAPS).

By disallowing the insecure protocols, enabling 2FA, and choosing a secure password, you’re doing everything to keep your account secure at a basic level.

More advanced features

Of course, there are things that are slightly more technical. You may need to go for a premium business email provider to ensure you get all of these features.

Outsource the worry with strong anti-spam filtration

We are our own worst enemies when it comes to spam, especially phishing. Without us, it's just another bogus email sent out into the ether. It takes a human for consequences to arise.

There are many ways andtactics you can use to stop email spam from overloading your inbox, but a simple one is to make sure you have the right spam filtering. This can identify spam using myriad different means, and even learn based on the type of spam you receive. From comparing things, like whether the display name matches the sender’s domain/address, to spotting other irregularities that we may not notice in emails (like sending certificates), they work on multiple levels to protect us.

The best type of spam filteralso offers degrees of filtration depending on the perceived level of threat, allowing you greater protection from the worst offenders. Equally, they offer the chance to put incorrectly classified messages back into your inbox, without ever being incorrectly flagged as spam again.They’re one of the most important factors to consider when choosing your email provider as a small business.

Use password-protected emails

More advanced email providers actually offer encrypted emails that require the recipient to use a password to open them. This ensures that even if the email is intercepted or accessed by unauthorized parties, they cannot view the message without the correct password. It’s a great feature for sending content that is sensitive or confidential.

Usually, password-protected emails exist only on your mail server. Rather than sending the email content to the recipient, a link is sent which takes them to where the message is stored on your server, where they can enter the password to open the email.

Why not learn how to encrypt your emails in Spacemail? It’ll help you protect your communications when extra privacy is needed.

Monitor your email account’s activity

Some features are ideal for larger businesses but can also be handy for solopreneurs, for example, those with a high level of interest in their business. One such feature is being able to monitor your account’s activity.

By tracking exactly where your email accounts are logged in, and when they were last accessed, you can get a clear sense of whether you’ve had a security breach in a couple of clicks.

Checking regularly for unfamiliar times, locations, or IP addresses is good practice, and allows you to keep track of any suspicious behavior in a routine and casual way. Not every email provider offers activity logs, so prioritize the ones that do — especially if they allow you to log out remotely for unidentified logins.

You might argue this couldn’t happen if all of the previous advice is followed, but it’s great to know it’s there for any worst-case scenarios.

Rest easy knowing you’re protected

It’s worth considering all this not as a set of obstacles, but as a series of quick and easy steps to grant you peace of mind when it comes to securing your email. None of the steps above are difficult to achieve. By adopting simple practices like phishing awareness, using strong passwords, enabling Two-Factor Authentication, and leveraging advanced features (like encrypted emails), you can safeguard your email and prevent costly security breaches.

Remember, securing your email isn’t just about protecting sensitive information — it’s about protecting your business, your reputation, and your peace of mind. You need the right provider to ensure your email remains a trusted and secure communication tool in this increasingly digital world.