Securing your inbox isn’t rocket science – all it takes is implementing some proven email security best practices. In this article, we’ll tell you what needs to be done.
What Is Email Security Best Practices?
Email security best practices are the combination of measures taken by individuals to protect their mailbox and emails from cyberattacks, phishing, scams, and malware infection. The term covers both technical actions (such as password protection or using encryption) and human behavior-related approaches (e.g., avoiding suspicious email links).
In most cases, there is no need to take any complicated measures to ensure email security. Using a good password, activating two-factor authentication, and being careful about clicking attachments will shield you from most cyberattacks.
The Importance of Email Security
Email remains the favorite way of gaining access into your digital life. One malicious attack can give access to sensitive information such as:
Banks and financial transaction credentials
Other online services (including social media)
Identification documents, including passports
Business-related documentation like contracts and invoices
Email exposure can cause even more serious consequences for SMBs and freelance workers, namely:
Data breaches and fines
Financial scams
Reputational damage and loss of customer confidence
To prevent such problems, it is important to follow some key email security best practices.
Core Email Security Best Practices
Always Use a Unique and Strong Password
Do not use simple and vulnerable passwords like “123456” or “password”. Choose a strong one, which will have at least the following elements:
Not less than 12 characters
Upper and lower case letters
Numbers and symbols (!,@,#,etc.)
However, the most crucial thing about passwords is that you should use a unique one in each of your email and other significant accounts. A password manager may assist you in creating and saving complex and unique passwords.
Enable 2FA
Two-factor authentication (2FA or MFA) means that to enter your account, two things will be necessary, i.e., something that only you know (like a login and password) and something that you have in your possession (a confirmation code sent by SMS).
To enable 2FA, go to the website of your email provider (Gmail, Microsoft Outlook, Yahoo mail, etc.) and turn it on there. Do the same with your social networking accounts and banking.
Ensure Up-to-date Software
Email applications and the operating systems you are working with require regular updates to keep themselves safe from attacks. If the update is enabled in the settings, allow it.
Using outdated software will make you and your accounts susceptible to attacks.
Install a Good Anti-Virus/Anti-Malware
Install a good anti-virus software or any internet security program in your laptop and cell phone. Ensure that the software is equipped with:
Live protection
Auto-update capabilities
Detection for malware and phishing
While free anti-virus programs may be adequate for some people, others might need premium versions of these software applications.
Do Not Use Public Wi-Fi for Accessing Confidential Emails
Public Wi-Fi connections available at cafes, hotels, and airports are usually insecure. Hackers and attackers can eavesdrop on your connection and capture your confidential information.
Avoid checking any confidential email messages using a public Wi-Fi connection unless you are using a reliable Virtual Private Network (VPN).
How to Behave Safely While Working with Email
Be Cautious of Suspicious Emails
Do not trust emails which:
Contain urgent messages (“Your account will be suspended within 24 hours!”)
Promised you too good opportunities (“You’ve won a prize!”)
Ask you to enter your password, OTP, payment information
Whenever you are unsure, try contacting them using their official website/app instead of following the link provided in the letter.
Verify the Email Sender
Phishing attacks use fake sender display names to disguise the originator of the letter as a reputable entity or person. In such cases, examine the email address:
Legitimate: su*****@****al.com
Fake: su*****@****a1.com or pa************@***********in.com
If the address is not familiar to you and seems suspicious, disregard the letter immediately.
Check the Hyperlinks Before Following Them
Using your computer, hover the cursor over the link before clicking to check its actual destination. Do not follow it if:
Its domain name is different from what it should be
It is very long and seems randomly created
It links to the login page while the letter wasn’t sent from the support service
Be Careful with Attachments
Malicious attachments can install malware, ransomware, or spyware. Avoid opening:
Executable files (.exe, .bat, .js, .scr)
Unknown file types from untrusted senders
Unexpected documents (Word, Excel, PDF) from unknown contacts
If you must open an attachment, scan it with antivirus first and save it to a temporary folder.
Do Not Transmit Confidential Information Via Standard Email
Standard email transmission is not necessarily encrypted. Don’t send:
Passwords, one-time passcodes, PINs
Credit/debit cards numbers
ID proofs including government issued IDs, PAN, Aadhar, passports
Private business files
In case you have to transmit such information, use an encryption service or file transferring services or upload your information in an encrypted form. Send the password to unlock the file separately via other communication channels.
Technical Adjustments That Beginners Should Be Aware Of
Activate Security Warnings
Most of the email providers come with features such as security warnings. These warnings can be set up for:
Login from new devices/locations
Suspected security threats (i.e., too many wrong passwords)
Changes to your account made by others like forwarding rules/filters
Activate them to stay updated about any potential breach.
Use Spam Filters and Phishing Warnings
Ensure that your filters and warnings remain activated. Always mark potential spam or phishing messages as “Spam” or “Phishing” to train your email provider for detecting and blocking similar threats in future.
Check your Spam filter regularly.
Regularly Monitor Account Activity
Access the “Security” or “Account Activity” tab within your email settings. This should reveal:
Unfamiliar device login attempts
Logged in session on devices you don’t use anymore
Automatic forwarding of emails that you didn’t set up
Log out of any unfamiliar sessions and delete any suspicious automatic forwarding.
Backup Important Emails
It is important to back up all critical emails including business emails, contracts, and invoices. This could be done through:
Cloud backup (Google Drive, OneDrive, etc.)
Physical backup (hard drive, NAS)
Backup emails (.pst, .mbox, .eml format)
Backups will prevent loss of emails due to hacking, accidental deletion, or malware infection.
How to Enhance Email Security in Business
Develop an Email Security Policy
An email security policy defines guidelines for employees like:
Allowed data to be exchanged via email
Password complexity and two-factor authentication
What to do when receiving suspicious emails
Email security policy should be shared with everyone.
Train Employees Regularly
Organize training sessions on how to detect phishing at least twice a year.
Topics to cover include:
Examples of phishing messages from real life
How to recognize and report suspicious emails
Phishing simulation to practice dealing with such situations.
Choose Business-Oriented Email Providers
Select an email service provider that offers:
Effective filters against spam and viruses
Email encryption features (S/MIME, TLS or third-party solutions)
Admin capabilities for managing security settings and user access.
Secure email gateway and cloud email security can be considered as options.Grant Limited Access Based on Roles
Limit the access privileges depending on the role of the user in the organization. For instance:
Normal employees don’t need administrative privileges
Some departments might require additional protection (finance, HR)
Administrators will use strong passwords, 2FA and monitor the account.
Have An Incident Response Plan
Prepare an easy-to-follow strategy for dealing with email breaches, including:
Changing passwords and enabling 2FA
Checking for malware on the compromised device
Informing affected parties (customers, partners) about the incident if necessary.
Frequently Asked Questions about Email Security Best Practices
What’s the easiest way to enhance email security right now?
Set up a robust and unique password and activate two-factor authentication on your principal email account. This will prevent most straightforward attacks.
How frequently should I update my email password?
Update it immediately if you believe you’ve been breached and at regular intervals (6–12 months) for essential accounts.
How can I tell whether my email account is hacked?
Symptoms include unknown sent emails, password change requests for which you did not ask, unexpected login notifications from new locations, or missing emails.
What action must I take if I discover my email account has been hacked?
Promptly modify your password, sign out of all connections, activate two-factor authentication, run an anti-malware check on your device, and examine your forwarding settings.
Is it alright to receive emails from unfamiliar sources?
It is safe to view emails from unknown sources without links or attachments.
How can I distinguish between a legitimate and a phishing email?
Phishing emails typically contain bad grammar, urgency or threats, URL mismatches, inquiries for confidential information, and unusual sender addresses.
Which is more perilous, links or attachments?
Both links and attachments can be harmful. Harmful links can direct you to phony login screens, whereas hazardous attachments can download malware onto your computer.
Should I create one email for everything?
No, I advise creating separate emails: one for banking and important online services, and another for signing up for newsletters.
Is public Wi-Fi bad for email security?
Yes. Public Wi-Fi may be dangerous for email since the traffic may get intercepted. Use a virtual private network or wait until you get connected to a safe network.
Is it necessary to have an antivirus if my provider scans attachments?
Yes. While provider scanning helps, antivirus software gives me protection from threats that pass unnoticed or those that come from places other than email services.
What is email encryption and do I need it at all?
Email encryption makes your message unreadable to anyone except your recipient. For personal and business correspondence, I recommend encrypting email with a tool included or external to email providers.
May I send passwords via email?
I advise against sending passwords via email. If this is necessary, I will send invitations to a password manager. Alternatively, I can send information in parts, such as via phone.
What kinds of scams should I watch out for?
The most common scam types are phishing emails (banking, parcel delivery, employment), cryptocurrency scams, and the so-called “CEO” scams.
How do I safely unsubscribe from spam emails?
In case the email address sending the message is legitimate (for example, a recognized brand), it will be fine to use the unsubscribe link. In case the authenticity of the email address is not sure, mark the email as spam.
Is it okay to use my company email for personal reasons?
It is strictly prohibited to use your work email address for personal use since you do not own it completely.
Can you explain what two-factor authentication is? What is better—app codes or text codes?
For two-factor authentication, two different elements are needed; this can be done using an authenticator that produces a code. Codes from authenticators are much safer than codes sent via text messages, but texts are more secure than none.
Should companies train their employees regarding email security?
It would be best if you had a training session regarding email security at least twice a year.
Is backing up emails important?
Certainly, because this will help you protect yourself against losing any important information in case of an attack, such as account theft, accident deletion, or ransomware.
Should I open attachments sent by colleagues or friends?
Be wary about all unsolicited attachments, even from known people, since they could have been hacked. Always confirm if the situation is not clear.
What is the most critical piece of advice for email security newcomers?
Stop and think twice before clicking on anything, especially if it seems too urgent or emotional.Stay Connected with My Coding Journey
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