This is the 4th edition of January, and last week witnessed multiple ups and downs in the cybersecurity ecosystem. Microsoft turned out to be the most mimicked brand in the last quarter of 2025, while experts realized the imminent cyber threat during the Winter Olympics. A West London council was targeted by hackers, leading to a breach of sensitive personal data. Meanwhile, a group of experts has stated that 2026 is going to witness highly sophisticated social engineering tactics over vulnerability-oriented cyberattacks.
Email authentication is fundamental to achieving secure and dependable email delivery, with DKIM being a key factor in verifying the authenticity and integrity of your communications. However, merely implementing DKIM is insufficient — ineffective selector management can compromise security, lead to verification errors, and damage your sender reputation.
The success of email delivery is largely influenced by effective domain authentication, with a crucial aspect often neglected being the SPF void lookup. When an email server assesses a domain’s Sender Policy Framework (SPF) record, it conducts DNS lookups to confirm that the sending source is permitted. If these lookups fail or yield no results, they are categorized as “void lookups,” which can undermine the strength of your domain’s authentication.
Last week was replete with unfortunate phishing mishaps. Here are the top cyber incidents that we have covered for you to keep you updated. While Amazon, the e-commerce giant, is being targeted by phishing actors, left, right, and center, LinkedIn is also becoming a popular playground for cybercrooks. The crypto community is already in shock because of the Ledger customer data breach incident. Meanwhile, a highly sophisticated campaign is targeting the user credentials by impersonating Google Support.
The sophistication of email threats is increasing, complicating the ability of businesses to safeguard their domains and reputation. DMARC XML reports provide essential information regarding entities sending emails on your behalf; however, the raw data can be intricate and challenging to analyze.(more…)
Ensuring your emails land in the inbox rather than the spam folder is essential for effective communication. As phishing threats become more prevalent and email authentication requirements tighten, it’s crucial for organizations to take additional measures to authenticate their messages.
DMARC enforcement best practices: Moving from ‘none’ to ‘reject’
by DuoCircle
It’s 2026, and email-based attacks remain one of the major concerns for organizations. It opens the door to sophisticated attacks such as phishing, brand impersonation, and business email compromise. This means cursory checks are no longer enough.
In the ever-evolving landscape of email security, Sender Policy Framework (SPF) is a cornerstone protocol for authenticating emails, defending against spoofing, and enhancing email deliverability.
This week’s cybersecurity news highlights how trust-based digital systems continue to be exploited across crypto platforms, browser ecosystems, and online marketplaces. Trust Wallet disclosed a major supply-chain attack that led to millions in stolen crypto, while researchers uncovered a long-running browser extension campaign tied to corporate espionage.
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