Email Security

The use of emails has always been increasing ever since its inception in the 1960s. Business communication, circulation of academic information, conveying personal information – almost everything is passed on between individuals or organizations via emails mainly for either or all of the following reasons:

  • Emails are faster.
  • Emails are reliable.
  • Emails ensure that the information reaches the end recipient and, if not, notifies the sender about it.
  • There is no scope of data loss with emails.
  • Emails are an excellent means of recording information chronologically.

Email Security Service

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Are Emails Secure?

On the surface, there is nothing to be concerned about in email communication. The accounts of both the sender and the receiver are self-operated and locked by passwords which only both of these parties know. However, with the advancement of useful technology occurs an equal (if not higher) rise in technology which brings vicious attackers and hackers into the picture.

What Is Phishing?

Phishing attacks are just like fishing in a river where a person tries to get hold of a fish by giving it a believable bait of a bread crumb or any similar bit of food. However, in phishing attacks, the fishes are the netizens, and the fishermen are the cyber attackers. Phishing attacks are most commonly circulated via email messages. In such attacks, an unexpected mail from a seemingly credible source asks the receiver to take specific immediate action (such as paying unpaid dues or claiming a reward) by clicking on an attached link or downloading a file. But these are impersonating emails taking the user to fake websites created by the attacker. And often, these install malware into the computers of users. These attacks also happen in other forms like through voice messages (Vishing), SMS frauds (Smishing), attacks targeting the big shots of an organization from whom the profits can be maximum (Whaling) or creating a replica of a website to win the trust of an unsuspecting user (Pharming).

What Is Malware?

Malware is another means used by attackers to install corrupt files and software into the computer systems of users without their permission or against their will. Often malware operates secretly and steals the private information of users without their knowledge. This information is then accessed by the attacker who either uses the data to blackmail the victim, launch a sextortion campaign, or sell the stolen details at a high price in the dark market. Its types include:

  • Ransomware – which locks the system of the user or encrypts files until the demanded ransom is paid.
  • Spyware – which launches spying software into the computer and steals data.
  • Scareware – which attempts to extract user information by instilling fear in them.
  • Adware – where malware gets downloaded via attacker-created fake advertisements.

What Is Email Security?

Email security is the process of shielding email accounts from the attacks of vicious hackers. It refers to the means employed by a user, an organization, or an information network to keep themselves secure from these phishing attempts and malware attacks.

How To Ensure Email Security?

Email security can never be a fool-proof plan as the attackers always manage to find some loophole even in the most sophisticated methods of protection. However, minimizing such attacks is the objective, and this can be achieved by adopting the following measures:

  • Setting strong passwords: Strong passwords with alphanumeric characters and symbols are highly recommended. It’s always more important to have secure passwords instead of easy to remember passwords.
  • Changing passwords from time to time: Using the same password for too long makes you more vulnerable to hacking attempts of attackers. Hence it is always advisable to change passwords from time to time. Also, having different passwords for different accounts is a smarter decision than otherwise.
  • Having a good antivirus installed: Antivirus software creates a layer of protection against all types of viruses and malware trying to attack your devices. It is a must to have an antivirus when you visit multiple websites on the Internet or install external devices and disks into your computer.
  • Having anti-spam filters: Anti-spam filters ensure that spam emails or messages do not show up in your mailbox, thus protecting your system from the malicious emails sent by attackers. It also saves you a lot of time and energy that gets wasted otherwise in opening those emails.
  • Using only updated software: Software developers update software from time to time to incorporate patches and other improvements to make the software secure and more efficient. Not updating one’s software to the latest version is sending an invitation to attackers to steal your files.
  • Being wise on the web: With everything said and done, the most frugal tip remaining is to be careful on the Internet. One must have a skeptical mind and halt before impulsively clicking on links and pop-ups. A click takes hardly a second, but often its after-effects cost millions of dollars!

Since one cannot do away with emails, one needs to find ways and means of doing away with the threats to email security. Protecting yourselves on the web is not easy but also not unachievable. Taking specific preventive measures goes a long way in keeping attackers and malware away.


Troubleshooting common BIMI issues

Troubleshooting common BIMI issues

 

You probably already know that your logo is one of the biggest assets your brand owns, but wouldn’t it be great if it showed next to your emails in the inboxes of your recipients? The way to make that happen is BIMI, which stands for Brand Indicators for Message Identification. BIMI lets your logo show up next to your emails when they land in the recipient’s mailbox, which will help your brand stand out and build trust with your audience.

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Building a zero-trust security model for emails

Building a zero-trust security model for emails

 

According to Verizon’s 2023 Data Breach Investigations Report, somewhere between 75% and 91% of targeted cyberattacks start with an email. Considering that such statistics surface in the news every day, organizations are trying to keep up with the growing number of sophisticated cyberattacks. Email is one of the most exploited vectors for phishing and ransomware attacks. Traditional security measures and technologies are evidently failing to ward off new-age cyberattacks; that’s why the latest solutions, like zero-trust security models, are emerging as robust alternatives. 

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Basics of DKIM syntax and tags

Basics of DKIM syntax and tags

 

DKIM stands for DomainKeys Identified Mail, a cryptography-based email authentication protocol that helps receiving servers verify if an email sent from your domain was tampered with in transit. If you have DKIM deployed for your domain, then your server will affix a digital signature to the header with each outgoing email. This is a cryptographically secured signature that is produced using a private key that is known only to you. The counterpart of the private key is a public key, which is published in the DNS of your domain.

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5 efficient email security techniques for advanced persistent threats

5 efficient email security techniques for advanced persistent threats

5 efficient email security techniques for advanced persistent threats

by DuoCircle

 

An advanced persistent threat (APT) is a sophisticated, prolonged cyberattack in which a malicious actor gains access to a network and remains undetected for an extended period. This type of cyberattack is often motivated by political, financial, or strategic interests and aims to steal sensitive data, disrupt operations, or conduct espionage

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Understanding the ins and outs of attack simulations

Understanding the ins and outs of attack simulations

 

Attack simulation is a cybersecurity technique that tests defenses by imitating tactics, methods, and procedures used by threat actors to exploit vulnerabilities and launch attacks. Its purpose is to spot system vulnerabilities and help the security team remediate them before someone capitalizes on them for malicious purposes. 

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BreakSPF attack- working, impact, and preventive measures

BreakSPF attack- working, impact, and preventive measures

 

Amidst the chaos in the cybersecurity landscape, a new type of cyberattack has been surfacing: BreakSPF. This latest attack framework bypasses the SPF authentication checks, invading target recipients’ inboxes with phishing and spoofing emails. This foul technique is capable of wreaking havoc on a large scale, jeopardizing the security of millions of domains across the world. 

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How to get started with BIMI for Zoho Mail- a guide to acquiring a verified checkmark

How to get started with BIMI for Zoho Mail- a guide to acquiring a verified checkmark

How to get started with BIMI for Zoho Mail- a guide to acquiring a verified checkmark

by DuoCircle

 

After Gmail and other key players, Zoho Mail is now openly supporting BIMI, allowing senders to display their brand logos with a blue verified checkmark in Zoho mailboxes. Email security risks are on the rise, stressing 95% of the top 500 cybersecurity leaders about it. 

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A roundup of TLDs that were the prime target of cyber attackers in 2024

A roundup of TLDs that were the prime target of cyber attackers in 2024

A roundup of TLDs that were the prime target of cyber attackers in 2024

by DuoCircle

 

As an unsuspecting internet user, if you come across an email from someone whose email address ends with a ‘.com’ or ‘.org,’ you might not think twice before opening it. After all, it comes from one of the widely recognized TLDs (top-level domains) out there. But in the context of cybersecurity, not everything that looks legitimate is to be trusted. 

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How to spot and dodge AI impersonation attacks?

How to spot and dodge AI impersonation attacks?

 

AI is everywhere, from your smartphones and home appliances to high-efficiency systems in workplaces and industries. It is officially the era of artificial intelligence, where bots have taken over almost every domain, including cybersecurity.

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Legal professionals also require email authentication- here’s what you need to know

Legal professionals also require email authentication- here’s what you need to know

Legal professionals also require email authentication- here’s what you need to know

by DuoCircle

 

Emails are one of the most used mediums for attempting phishing. Irrespective of your industry and operational style, if your work involves the exchange of emails (which almost every business does in today’s time), then you could be the target of phishers

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Are multiple DKIM records allowed for a domain?

Are multiple DKIM records allowed for a domain?

 

Yes, you can create and update multiple DKIM records for your domain. In fact, it’s one of the best practices in certain scenarios. Each DKIM record corresponds to a different, unique selector that allows the existence and association of multiple public keys. This way, different public keys linked with different email servers or systems can coexist without triggering any technical problems. 

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What are the best practices to follow for managing DKIM keys?

What are the best practices to follow for managing DKIM keys?

 

When it comes to validating the authenticity of an email’s contents, DKIM (DomainKeys Identified Mail) is the go-to authentication protocol for most organizations. It does so by adding a digital signature to the email’s header. This signature helps verify that the message is actually coming from a trusted source and that its contents have not been changed during transit

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Reasons why your company needs DMARC right away

Reasons why your company needs DMARC right away

 

You may not know, but DMARC adoption among the top 1 million websites is low, with only 33.4% having a valid DMARC record. This means that a significant portion of these websites, that is 66.6%, are vulnerable to email spoofing and phishing attacks. 57.2% of these websites use a ‘none’ policy, meaning emails that fail DMARC checks are still delivered to recipients’ primary inboxes. As a result, 85.7% of the domains don’t have effective DMARC protection, leaving them open to cyber threats.

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What is digital adoption and how is it improving email deliverability in 2024?

What is digital adoption and how is it improving email deliverability in 2024?

What is digital adoption and how is it improving email deliverability in 2024?

by DuoCircle

 

Digital adoption means using new technologies, tools, and systems to make various processes more efficient and less time-consuming. There are tons of apps and software that do so many things that we don’t have to do manually. For example, Whatfix is a Digital Adoption Platform (DAP) that helps organizations implement new CRM systems quickly and get accustomed to the new software with minimal disruption. For companies implementing internal tools like HR or accounting software, Userlane ensures users can navigate new platforms without formal training sessions.

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How to add a DKIM signature for your domain in Zoho?

How to add a DKIM signature for your domain in Zoho?

 

Once you have created a DKIM TXT record in your domain’s DNS manager, you can turn on DKIM for your domain from Zoho Mail’s control panel. DKIM configuration happens in 3 steps. Let’s see how these steps unfold to inform recipients if the email content was altered in transit. 

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The history and evolution of ransomware attacks

The history and evolution of ransomware attacks

 

In 1989, a group of unsuspected attendees at a World Health Organization conference received around 20,000 floppy disks. This incident went down in history not because of any scientific breakthroughs but because it heralded an all-new era in cybercrime—ransomware. Fast-forward to today, and ransomware attacks have transformed into a billion-dollar criminal enterprise, targeting not only the big giants but also small businesses and individuals

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What are email feedback loops and how do they work?

What are email feedback loops and how do they work?

 

Email feedback loops are the significant mechanisms that notify senders about spam complaints. Your sender’s reputation plays a huge role in deciding whether a recipient’s mailbox will place your email in the inbox or spam folder or reject its entry. This is where email feedback loops step in and help you monitor your complaint rates so that you can take corrective measures for protecting and improving your domain’s sender reputation. Some of the common corrective measures are changing the way you write email content, using a better subject line, removing dormant subscribers from the list, providing an easy one-click unsubscribe option, etc. 

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Learning to avoid breaking up the Google Workspace DKIM setup

Learning to avoid breaking up the Google Workspace DKIM setup

 

Enabling DKIM on Google Workspace is a two-step process but most people stop after completing the first one only. If that’s what you have also done, then please know that in such scenarios, DKIM and DMARC will function normally, and there won’t be any impact on email delivery, failing to complete the second step will compromise your email security. However, DKIM will fail to authenticate emails using your custom domain, causing communication problems at multiple levels

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