Lumma Infostealer Returns, Coyote Malware Exploits, Interlock Ransomware Alert – Cybersecurity News [July 21, 2025]

Lumma Infostealer Returns, Coyote Malware Exploits, Interlock Ransomware Alert – Cybersecurity News [July 21, 2025]

Lumma Infostealer Returns, Coyote Malware Exploits, Interlock Ransomware Alert – Cybersecurity News [July 21, 2025]

by DuoCircle

From malware sneaking in through fake game cheats to ransomware hitting hospitals, this week’s cyber stories are anything but quiet. Lumma’s back in action, Coyote’s abusing Windows in clever ways, and even Dior couldn’t dodge a data breach. If you use the internet (and who doesn’t?), here’s what you should be paying attention to.

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How to fix the “DMARC policy not enabled” error- Everything you need to know!

How to fix the “DMARC policy not enabled” error- Everything you need to know!

How to fix the “DMARC policy not enabled” error- Everything you need to know!

by DuoCircle

 

If you have stumbled upon this blog, then it is highly likely that you are dealing with the issue of the “DMARC policy not enabled” error. You get this message when your domain has a DMARC record, but there is no valid policy to define it. A DMARC record makes no sense without a DMARC policy. It’s like having a front desk guard in your building who smiles and nods, even when strangers walk in. Hence, the moment this message appears, you must understand that your email system is no longer protected against phishing and spoofing attacks.

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Office 365 Phishing Protection: Essential Tips for Enhanced Email Security

Office 365 Phishing Protection: Essential Tips for Enhanced Email Security

 

In a world where emails are the primary means of communication, the risk of phishing attacks lurks just one click away. Whether it’s a seemingly innocuous message from a “trusted” source or a polished-looking request for sensitive information, these scams can catch anyone off guard. The reality is that identifying these threats isn’t just about having the latest technology; it also relies heavily on being informed and proactive.

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How are Gmail and Outlook policies raising the bar for DMARC adoption?

How are Gmail and Outlook policies raising the bar for DMARC adoption?

How are Gmail and Outlook policies raising the bar for DMARC adoption?

by DuoCircle

 

There was a time when email security was a mere IT concern; it was a good-to-have but wasn’t really a priority. We are referring to a time when email-based threats were not as prevalent or dangerous as they are today. It might sound like we are talking about a distant past here, but that’s the reality. You can no longer put email security on the back burner, thinking that your emails will protect themselves or that cybercriminals will never reach you.

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Spear Phishing Prevention: Essential Cybersecurity Strategies to Protect Your Data

Spear Phishing Prevention: Essential Cybersecurity Strategies to Protect Your Data

 

When you check your email, how often do you stop to think about the risks lurking behind seemingly innocent messages? Spear phishing attacks—targeted attempts designed to trick individuals into revealing sensitive information—are becoming more common and far more sophisticated. As cybercriminals zero in on their targets with personalized tactics, it’s essential for everyone, especially employees, to recognize these threats before they strike.

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FileFix Ransomware Threat, Konfety Malware Evasion, Crypto Users Targeted – Cybersecurity News [July 14, 2025]

FileFix Ransomware Threat, Konfety Malware Evasion, Crypto Users Targeted – Cybersecurity News [July 14, 2025]

FileFix Ransomware Threat, Konfety Malware Evasion, Crypto Users Targeted – Cybersecurity News [July 14, 2025]

by DuoCircle

Attackers are getting creative again, using copy-paste tricks to drop malware, hiding Android threats inside broken app files, and setting up entire fake startups to steal crypto. Developers are being targeted through tampered npm packages, while a newly exposed Wing FTP flaw is already under active abuse. With techniques evolving fast, staying patched and alert is more important than ever. Read on to stay a step ahead

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Cloudflare’s new SPF, DKIM, and DMARC requirements

Cloudflare’s new SPF, DKIM, and DMARC requirements

 

Starting July 3, 2025, Cloudflare requires all emails to be authenticated using at least one of the protocols. SPF or DKIM, to forward them. This requirement has been imposed in consideration of the growing number of email-based phishing and spoofing attacks. These email authentication protocols ensure that only authorized emails reach the inboxes of recipients, thereby preventing them from being manipulated into transferring money or sharing confidential information. 

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How to Setup DKIM for Your Domain: A Complete Email Authentication Guide

How to Setup DKIM for Your Domain: A Complete Email Authentication Guide

 

Email communication has become a vital part of our daily lives, especially for businesses. But did you know that a simple yet crucial security feature can help protect your emails from being tampered with or falsely represented? That’s where DKIM (DomainKeys Identified Mail) comes in. This method adds a digital signature to your email, giving both you and your recipients peace of mind that messages are authentic and safe.

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How to avoid email authentication failures when sending messages to Microsoft 365 users?

How to avoid email authentication failures when sending messages to Microsoft 365 users?

How to avoid email authentication failures when sending messages to Microsoft 365 users?

by DuoCircle

 

If you are struggling with disappearing emails or deliverability drops when targeting Microsoft 365 users, then it’s an indication of an underlying issue— misconfigured or missing email authentication protocols. 

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Understanding SPF Record Syntax: Ensure Email Security with Proper Configuration

Understanding SPF Record Syntax: Ensure Email Security with Proper Configuration

 

Email has become a central tool for communication, but with its convenience comes the risk of impersonation and spam. Many people don’t realize that proper email setup is crucial to keep their messages safe and trusted. One of the best ways to protect your domain from being misused is through an SPF record. Think of it as a security badge that tells other mail servers which addresses are allowed to send emails on your behalf. 

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Hackers Exploit Shellter, Anatsa Trojan Spreads, Pull Request Breach – Cybersecurity News [July 07, 2025]

Hackers Exploit Shellter, Anatsa Trojan Spreads, Pull Request Breach – Cybersecurity News [July 07, 2025]

Hackers Exploit Shellter, Anatsa Trojan Spreads, Pull Request Breach – Cybersecurity News [July 07, 2025]

by DuoCircle

 

This week’s cyber world feels like a game of digital whack-a-mole, where every time defenders squash one threat, another pops up somewhere else. There are hackers sneaking malware into trusted tools, trojans hiding in mobile apps, and cybercriminals hijacking search results and online ads. From leaked security software fueling new attacks to crafty scams riding the wave of AI buzz, cybercriminals are proving they’ll exploit anything. Here’s how they’ve been keeping security teams on their toes!

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How to pass Microsoft’s email authentication requirements?

How to pass Microsoft’s email authentication requirements?

How to pass Microsoft’s email authentication requirements?

by DuoCircle

 

If your company’s mailboxes are in Exchange Online, Microsoft requires you to take email protection seriously. You are liable for protecting the integrity of email messages from senders in your domain. Your recipients should be confident enough to open emails from your domain, knowing you have already taken the measures to ward off phishing and spoofing attempts.

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DMARC is now mandatory in New Zealand: Here’s what the NZ government expects

DMARC is now mandatory in New Zealand: Here’s what the NZ government expects

DMARC is now mandatory in New Zealand: Here’s what the NZ government expects

by DuoCircle

 

Most countries have already made DMARC enforcement mandatory, especially for government agencies (after all, that’s where the real threats lie). But New Zealand wasn’t on this list until now! 

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Fake Wallet Extensions, Qantas Hack Revealed, ICC Cyberattack Unveiled– Cybersecurity News [June 30, 2025]

Fake Wallet Extensions, Qantas Hack Revealed, ICC Cyberattack Unveiled– Cybersecurity News [June 30, 2025]

Fake Wallet Extensions, Qantas Hack Revealed, ICC Cyberattack Unveiled– Cybersecurity News [June 30, 2025]

by DuoCircle

 

This week’s cybersecurity round-up brings you stories you need to know, from fake crypto wallets lurking in Firefox to major breaches hitting airlines, global courts, and healthcare groups. We’ll see how threat actors are shifting from traditional tactics and which new threats are on the radar.

Stay digitally safe and well-informed about your personal information security!

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Why Email Marketing Software Beats Manual Campaigns

Why Email Marketing Software Beats Manual Campaigns

As we move further into the digital age, there is a growing appetite for brands to build a relationship with their audience by reaching them with personalized communication. Email marketing is a powerful weapon, but most people have never been able to figure out how to conduct email campaigns manually or with high-end tools. Once organizations understand why email marketing software works better than manual efforts, they can redirect their efforts into more effective ways.

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How does DMARC improve email deliverability?

How does DMARC improve email deliverability?

When it comes to B2B and B2C business communications, email plays a crucial role as a core communication channel. From running marketing campaigns to offering customer support, from notifying customers with transactional details to engaging them one-on-one with newsletters and emails, they do it all for your business. 

 

But what if these emails do not reach your audience at all? Poor email deliverability can not only affect your day-to-day business operations but also tarnish your brand reputation. This is exactly why you need DMARC to enhance your email deliverability.

Let’s find out how your email deliverability is dependent on DMARC.

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SonicWall Malware Warning, Crypto Phishing Scheme, Medical Data Exposed – Cybersecurity News [June 23, 2025]

SonicWall Malware Warning, Crypto Phishing Scheme, Medical Data Exposed – Cybersecurity News [June 23, 2025]

SonicWall Malware Warning, Crypto Phishing Scheme, Medical Data Exposed – Cybersecurity News [June 23, 2025]

by DuoCircle

If you’re online, you’re a target, and this week proves it once again. Attackers have cloned a popular VPN app, used crypto support tools for phishing, and exposed data from hospitals, city councils, and even an international sports event. Here’s a deeper look into cybersecurity’s latest threats and how to stay protected!

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3 emerging AI-powered cyber threats and how to stay protected from them in 2025

3 emerging AI-powered cyber threats and how to stay protected from them in 2025

3 emerging AI-powered cyber threats and how to stay protected from them in 2025

by DuoCircle

AI has penetrated deep into our lives, both maliciously and benevolently. The situation has worsened to a point where now one in 10 adults worldwide has fallen victim to an AI-voice cloning scam, and 77% of them have lost money.

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How does DMARC make cold emailing more effective?

How does DMARC make cold emailing more effective?

 

Cold emailing is a strategic and effective way for businesses and service providers to reach potential clients, pitch their best offers, and generate high-quality leads. However, with so much noise surrounding AI chatbots, funnel automation, and generative AI, cold emailing no longer works the way it did five years ago. Two major factors that determine the fate of your cold emails are trust and deliverability. Without these two, cold emailing in 2025 may feel like a lost cause. 

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Avoiding common BIMI pitfalls: What goes wrong and how to fix it

Avoiding common BIMI pitfalls: What goes wrong and how to fix it

Avoiding common BIMI pitfalls: What goes wrong and how to fix it

by DuoCircle

 

BIMI (Brand Indicators for Message Identification) does one simple task— showing your brand logo next to your emails in the recipients’ inboxes. But getting there? Not so much.

You might think it’s easy to get your logo to be displayed next to your emails, but unfortunately, it’s nothing like setting a profile picture (more…)

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