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.
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.
The role of canonicalization in preventing email breakage in DKIM
by DuoCircle
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.
Unintentional DKIM failures: common message modifications that trigger false positives
by DuoCircle
DKIM is highly sensitive to alterations. This sensitivity is what makes DKIM a robust protocol against phishing attacks attempted by changing the email content while it’s in transit. However, sometimes inadvertent modifications happen in transit, which triggers emails to fail DKIM authentication even if a malicious entity hasn’t altered them. This blog lists the common unintentional modifications that lead to false positives.
Is BIMI just an authentication protocol? 6 Reasons it’s more than that!
by DuoCircle
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.
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.
What is the role of cryptography in the healthcare industry?
by DuoCircle
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.
![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)
![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)
