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.
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.
Cold outreach has always been a tightrope walk. On the other hand, businesses and recruiters are seeking to connect with new prospects and initiate conversations. On the other, sending too many emails to the wrong people at the wrong time can harm the sender’s reputation, kill deliverability, and even have a domain blacklisted.
Why SPF, DKIM, and DMARC are becoming mandatory in sectors like aviation and energy
by DuoCircle
Email-based cyberattacks are everywhere. They are more rampant in some industries and have grave consequences in others. For sectors that operate on very high stakes, like aviation and energy, the impact of these attacks is usually very serious and sometimes, at a scale that can disrupt other critical services as well.
In today’s digital landscape, ensuring robust email security is paramount for organizations and domain owners alike. The rise of email phishing attacks, domain spoofing, and other forms of email fraud necessitates advanced solutions that not only detect but also prevent unauthorized email activity.
DomainKeys Identified Mail (DKIM) is a critical component of modern email authentication frameworks designed to enhance email security by verifying sender identities and ensuring message integrity. Introduced as an open standard and formalized by RFC 6376, DKIM employs public key cryptography to cryptographically sign email headers and message body, allowing mailbox providers like Google’s Gmail, Microsoft 365, and Yahoo to verify that emails originate from legitimate senders.
Troubleshooting SPF syntax errors: Tips for fixing the most common mistakes
by DuoCircle
When you configure SPF for your domain, there are a lot of things that can go wrong and wreck your entire setup. And if your SPF configuration is not done right, your emails will be at risk, the risk of being rejected, marked as spam, or worse, being impersonated by threat actors.
DomainKeys Identified Mail (DKIM) stands as a crucial pillar of email authentication and security. Defined under RFC 6376, DKIM is an email protocol that uses cryptography to sign email messages with a private key after leaving the mail client or mail server, specifically the mail transfer agent (MTA). The cryptographic signature included in the email headers enables receiving mail servers to perform signature verification by retrieving the corresponding public key from a DNS TXT record associated with the sender’s email domain.
Email communication remains one of the most essential tools for businesses and individuals alike, but ensuring its authenticity is critical to protecting recipients from phishing and spoofing attacks. One of the key mechanisms for verifying the legitimacy of an email is DomainKeys Identified Mail (DKIM), which uses cryptographic signatures to confirm that messages haven’t been altered in transit and truly originate from the claimed domain.
Email security has become a critical priority for businesses and organizations of all sizes, and DMARC (Domain-based Message Authentication, Reporting, and Conformance) plays a central role in protecting domains from spoofing and phishing attacks. While setting up DMARC ensures that unauthorized messages are flagged or rejected, the real challenge lies in understanding the flood of DMARC XML reports that email providers generate. These reports contain valuable insights into who is sending emails on your behalf, whether they pass authentication checks, and where potential vulnerabilities may exist.
In today’s digital landscape, email security is more critical than ever. Cybercriminals frequently exploit email systems through spoofing and phishing, making it essential for organizations to adopt robust authentication methods. DomainKeys Identified Mail (DKIM) is one of the core email authentication protocols that helps verify a sender’s identity and ensures that messages are not altered in transit. Implementing DKIM involves publishing a TXT record in your domain’s DNS, which serves as a digital signature for outgoing emails.
Sometimes your email just doesn’t reach its recipient. You’ve done everything right— crafted the perfect message, sent it to the correct address, and even authenticated your domain with email authentication protocols. Yet, it gets flagged or doesn’t even land in the receiver’s mailbox.
SPF macros can be best described as placeholders that are used within SPF records. They intend to make the SPF record more flexible and intelligent. This way, you don’t have to hardcode every detail; you can use macros like %{i}, %{d}, and %{h} to allow SPF records to adapt during a live email authentication check.
In an age where our inboxes are overflowing with messages, ensuring that the emails you send actually reach their intended recipients can feel like a daunting task. Have you ever wondered why some of your important emails end up lost in the void of the spam folder or, worse, get rejected outright? This is often due to a little-known defense mechanism called the Sender Policy Framework (SPF).
In a world where email communication is essential for businesses, it’s alarming how many organizations overlook the basics of email security. Have you ever received an email from a seemingly trustworthy source, only to later discover it was a clever spoof? This common issue highlights the importance of establishing a solid foundation for your email systems.
How to avoid email authentication failures when sending messages to Microsoft 365 users?
by DuoCircle
If you are struggling with disappearing emails or deliverability drops when targeting Microsoft 365 users, then it’s an indication of an underlying issue— misconfigured or missing email authentication protocols.
Email has become a central tool for communication, but with its convenience comes the risk of impersonation and spam. Many people don’t realize that proper email setup is crucial to keep their messages safe and trusted. One of the best ways to protect your domain from being misused is through an SPF record. Think of it as a security badge that tells other mail servers which addresses are allowed to send emails on your behalf.
How to pass Microsoft’s email authentication requirements?
by DuoCircle
If your company’s mailboxes are in Exchange Online, Microsoft requires you to take email protection seriously. You are liable for protecting the integrity of email messages from senders in your domain. Your recipients should be confident enough to open emails from your domain, knowing you have already taken the measures to ward off phishing and spoofing attempts.
3 emerging AI-powered cyber threats and how to stay protected from them in 2025
by DuoCircle
AI has penetrated deep into our lives, both maliciously and benevolently. The situation has worsened to a point where now one in 10 adults worldwide has fallen victim to an AI-voice cloning scam, and 77% of them have lost money.
Tackling common SPF errors: A cheatsheet for safer email authentication
by DuoCircle
SPF, or Sender Policy Framework, is the foundational authentication protocol that tells receiving servers which sources are allowed to send emails on behalf of your domain. Now, if something goes wrong with your SPF setup, it may not only have a direct impact on your email deliverability and security, but also have a ripple effect across other authentication checks, such as DKIM and DMARC. Emails may land in spam, get rejected outright, or leave your domain vulnerable to spoofing attacks—all because of a misconfigured SPF protocol.
Affiliate email marketing is one of the most stable income channels for affiliates – open rates reach 50% and even more in some industries – but there are still quite a few obstacles to overcome, from spam filters to phishing attacks to fake sign-ups. As an advertiser, you’d like to nullify or at least mitigate all those risks, so you can get purchase-prone leads that match your demographics.