Unintentional DKIM failures: common message modifications that trigger false positives

Unintentional DKIM failures: common message modifications that trigger false positives

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.

(more…)

Gmail security requirements for brands and businesses

Gmail security requirements for brands and businesses

 

Gmail is one of the best email service providers in the world. Gmail has managed to beat all the competition because of its state-of-the-art features and seamless integration with other Google services. With a whopping user base of 1.8 billion, Gmail focuses extensively on security requirements and restrictions in order to enhance user safety and data privacy.

(more…)

What is the DMARC ‘sp’ Tag for Subdomains?

What is the DMARC ‘sp’ Tag for Subdomains?

 

Domain owners with multiple subdomains expose their businesses to phishing and spoofing attacks, which underscores the importance of protecting them with DMARC. Generally, domain administrators only deploy SPF, DKIM, and DMARC for the main domains, leaving unsecured subdomains to be the ideal entry points for threat actors. That’s why all your subdomains should have a quarantine or reject policy, with the percentage parameter ideally set to 100.

(more…)

Child Data Ransom, Hessen Encryption Report, Steganography RAT Deployment – Cybersecurity News [February 26, 2024]

Child Data Ransom, Hessen Encryption Report, Steganography RAT Deployment – Cybersecurity News [February 26, 2024]

Child Data Ransom, Hessen Encryption Report, Steganography RAT Deployment - Cybersecurity News [February 26, 2024]

by Duocircle

 

We’re back again with the latest in cybersecurity news this week! Join us for a detailed look into the Rhysida ransomware and the Hessen attack to get updates on how you can stay safe. We’ll also share news of the new IDAT loader targeting the Ukrainian Armed Forces, PayPal’s new patent for browser cookie security, and Apple’s latest PQ3 encryption for iMessages. Stay tuned.

(more…)

Safeguarding Retailers Against Cyber Threats

Safeguarding Retailers Against Cyber Threats

 

Amidst the widespread digital transformation, the retail industry stands at the crossroads of innovation and vulnerability. Therefore, retailers need to draw their line of defense with a comprehensive approach to cybersecurity, including robust email security safeguards.

(more…)

Are MortalKombat Ransomware and Tengyun Snake Attacks Emerging Email Threats?

Are MortalKombat Ransomware and Tengyun Snake Attacks Emerging Email Threats?

Attachment-based malware threats are not dying out, they are now a persistent threat. Researchers discovered a new ransomware threat, MortalKombat, in early 2023 that spreads through phishing emails and targets victims worldwide. MortalKombat and Tengyun Snake are the emerging email threats that made experts wonder whether detection-based approaches are enough today.

(more…)

Pin It on Pinterest