A DKIM selector is a string included in the DKIM signature of an email, which helps the recipient’s mail server locate the corresponding public key stored in DNS records for verification purposes. It is essential for ensuring that emails sent from your domain can be properly authenticated, thereby enhancing your email security and integrity.
Migrating from one Office 365 tenant to another can feel a bit like planning a big move: there’s excitement for new beginnings, but also a mountain of details to manage! Whether you’re merging companies, reorganizing, or simply upgrading, a smooth transition is key to keeping everything running without a hitch. With the right strategies and tools in your corner, you can make the process simpler and less stressful.
Threat actors are becoming more sophisticated, and the safety of the digital space is taking a toll because of it. Over the past few months, cybersecurity experts have noticed a new phishing scam tactic in which bad actors send fake meeting invitations that redirect the invitees to phishing websites. These invites look exactly like the original Google invites, and even the phishing website is cloned so well that it’s difficult to catch its fakeness. Since the counterfeit platforms are flawless, the success rate of these attacks is extremely high; users are entering sensitive details and downloading malicious links without batting their eyes.
In today’s fast-paced tech world, many businesses are seeking ways to streamline their IT services and improve customer satisfaction, but how do they do that effectively? Enter the MSP Partner Program—a game-changing initiative specifically designed for Managed Service Providers (MSPs).
The ‘fo’ tag in DMARC stands for ‘failure options.’ It’s an optional tag that helps domain owners specify the types of authentication and alignment issues that must be reported. This tag supports four specific types of failure reports: fo=0, fo=1, fo=d, and fo=s. The ‘fo’ tag can combine multiple reporting options, enabling you to create a customized reporting strategy that aligns best with your preferences and risk tolerance.
In a digital world where email is still a primary mode of communication, protecting your domain from malicious attacks has never been more critical. You may think email security only pertains to big corporations, but every organization, large or small, should be on alert against threats like phishing and spoofing.
If you look around and notice the gadgets you use every day and how interconnected they are, you will realize that these gadgets are constantly communicating with each other and with users over the internet. Whether it is your smartwatch and your phone or the security camera in your home and the cloud storage service, almost everything that you use is part of the ecosystem that is called IoT or Internet of Things.
Email has become a fundamental part of our everyday communication, whether we’re sending a simple message to a friend or relaying critical information in a business setting. However, we often overlook the unsung hero behind this seamless experience: the Simple Mail Transfer Protocol, or SMTP. Imagine being able to send an email without worrying if it would arrive safely or be intercepted along the way.
In the digital age, emails have become one of our main ways to communicate, whether it’s sharing important updates with colleagues or sending family photos. But imagine sending an email only for it to vanish into the vastness of cyberspace because your domain isn’t set up correctly. That’s where SPF records come in—they act like a security guard at the email gate, verifying that messages sent from your domain are legitimate and keeping spam at bay.
![Bybit’s $1.5B Loss, FatalRAT Hits APAC, GitVenom Targets Wallets, – Cybersecurity News [February 24, 2025]](https://www.duocircle.com/wp-content/uploads/2025/03/phishing-protection-5643.jpg)
State-sponsored hacktivism is on the rise. Script kiddies use pre-existing scripts while others employ highly sophisticated tactics using diverse tools and resources. Attackers are scouring GitHub for sensitive information on GitHub and trying to steal critical information from repositories. Security breaches happen when they gain unauthorized access to the source code. This week, we’re reviewing a series of the latest cybersecurity incidents by closely analyzing their attack trends and threat vectors. We’ll also discuss how a significant cryptocurrency exchange organization was the victim of a massive crypto attack and explore how the FatalRAT malware targeted organizations across APAC. Below is a summary of the latest findings.
Email marketing is the most effective digital marketing strategy. That’s because its ROI (return on investment) is the highest—3600% to 4200%.
But that’s not for any ordinary email marketing campaign. For that much ROI, your emails have to be highly personalized. In different studies, 82% of marketers reported an increase in their open rates with personalization.
DKIM policy secures your email communications by detecting any kind of tampering or alterations during the transit. However, the journey from your outbox to a receiving inbox is an intricate one. Since emails get delivered super quick, we fail to notice the minor changes that take place during the process. The mail systems may lead to certain minor changes in the email content (line breaks, case differences, whitespace, and so on). Even though the changes may not appear to be too major, they can affect the integrity of the email, thereby resulting in DKIM failure. In order to avoid these instances of false negatives, you must focus on canonicalizing your emails.
Your emails are not simply a communication channel; they are a representation of your brand, its trustworthiness, identity, and professionalism. Similarly, Brand Indicators for Message Identification (BIMI) is more than just an authentication protocol.
![FrigidStealer Targets macOS, MAVInject Evades Detection, Stealthy Espionage Malware – Cybersecurity News [February 17, 2025]](https://www.duocircle.com/wp-content/uploads/2025/02/sender-policy-framework-6542.jpg)
Cybersecurity threats are rapidly evolving at an unprecedented rate, making cybersecurity more critical than ever. This week, we uncovered a new malware targeting macOS users through fake browser updates and a stealthy cyberattack exploiting Windows utilities to evade detection. We will also explore how hackers deploy payment skimmers using hidden image tags, as well as discover how the latest cyber espionage campaigns target big industries and international corporations. Lastly, we will cover the news highlighting recent data breaches affecting thousands of individuals and organizations across the globe.
There is no doubt that DMARC is deployed to prevent phishing and spoofing emails; however, misconfigured DMARC records are synonymous with exploitable vulnerabilities. DMARC is implemented in tandem with SPF and DKIM. This email authentication structure compensates for the drawbacks of SPF and DKIM. SPF’s drawback is that it is highly likely to break when emails are forwarded; this means when someone forwards a legitimate email, the receiving server will either mark it as spam or reject it. DKIM’s drawback is that it triggers false positives because of inadvertent message modifications.
Here’s a bitter reality: Cyberattackers leave no individual or sector behind.
We know that data breaches and cyberattacks have become a reality today— thanks to technological evolution. However, the actual issue arises when critical services like healthcare become the target of malicious activities.
Let’s do a quick recap of how DKIM works so that we can go further into knowing what happens to emails that don’t pass the DKIM authentication checks.
![Massive Cyber Attack, ClickFix Deploys RAT, Hacker Group Attacks – Cybersecurity News [February 10, 2025]](https://www.duocircle.com/wp-content/uploads/2025/02/spf-validator-3271.jpg)
Cybercriminals nowadays are getting smarter and adapting social engineering and ransomware techniques to attack their targets. This week, we’re covering a series of critical attacks that smartly leveraged the use of BotNet, affecting around 2.8 million devices. Also, we will uncover how social engineering attacks were executed to run unintended malicious PowerShell commands.
DKIM works using encryption techniques and digital signatures that help the sender’s server transparently sign outgoing emails so that the recipient’s server can verify if the content has been altered in transit. DKIM is highly sensitive to message modifications; even the slightest difference between the content the sender sent and the recipient received causes DKIM verification to fail.
If you send marketing email campaigns to your clients almost every day, you will know that email is one of the key channels to connect with your audience. But what you might not realize is that it is also the most vulnerable channel that lets cybercriminals in and leaves your entire ecosystem exposed to phishing, spoofing attacks, and data breaches.