Email security is one of the most critical aspects of running a professional and trustworthy business. With cyber threats, phishing attempts, and email spoofing on the rise, ensuring that your organization’s emails are authenticated has never been more important. DomainKeys Identified Mail (DKIM) is a widely used email authentication method that adds a digital signature to your outgoing messages, helping prevent tampering and proving that emails truly come from your domain.
How can real estate companies protect their emails with DMARC?
by DuoCircle
The real estate industry has evolved to be as digitally driven as any other industry, like finance and retail. From property listings to deal closures, everything happens online. Although it has made things a lot easier for the agent, seller, and buyer, this digital shift has also opened doors to cyberattackers.
Cybersecurity threats continue to escalate this week. Apple issued its seventh zero-day fix of 2025 after reports of active exploitation. Hackers are abusing a two-year-old Apache flaw to install hidden back doors that patch themselves to evade detection. A phishing campaign is spreading malware against enterprises worldwide. Authorities renewed sanctions on crypto exchanges that moved over $100 million for ransomware groups and froze another $300 million tied to fraud. At the same time, another malware is exploiting Windows flaws to infiltrate multiple industries.
DMARCbis adoption: what IT leaders, CISOs, and domain owners need to know
by DuoCircle
The stronger and better DMARC2.0 is almost here. This upgraded, tighter version aims to combat the growing menace of email-based phishing and spoofing attacks, especially the ones powered by artificial intelligence.
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.
How can the finance sector leverage DMARC to defend against email fraud?
by DuoCircle
The finance sector thrives on trust. The fact that your clients are putting their hard-earned money in your company or institution shows that they not only have confidence in your financial products or services, but also that they believe you have the ability to keep their assets and data safe. But, truth be told, their money and data aren’t really safe unless you actively protect them.
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.
Email remains one of the most vital communication tools for both businesses and individuals, but when outgoing messages fail to send, productivity and reliability take a hit. At the heart of email delivery lies the Simple Mail Transfer Protocol (SMTP) server, which is responsible for relaying messages from your email client to the recipient’s inbox. However, misconfigurations, connectivity problems, or security restrictions can cause SMTP servers to malfunction, leaving users frustrated with undelivered or bounced emails.
Cybersecurity incidents this week include Google completing notifications for a Salesforce breach linked to ShinyHunters, and the discovery of Charon ransomware targeting the Middle East public and aviation sectors with APT-style tactics. Researchers exposed new 2TETRA:2BURST flaws in critical TETRA radio systems, while a WinRAR zero-day was exploited by Paper Werewolf and RomCom groups. The GreedyBear campaign stole over $1 million via malicious browser extensions, alongside an Ethereum trading bot scam using AI-generated YouTube videos to drain wallets of nearly $900,000. Let’s dissect each news in brief!
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.
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