GitHub Backdoor Threat, Cartier Data Breach, Fake RubyGems Steal – Cybersecurity News [June 02, 2025]

GitHub Backdoor Threat, Cartier Data Breach, Fake RubyGems Steal – Cybersecurity News [June 02, 2025]

GitHub Backdoor Threat, Cartier Data Breach, Fake RubyGems Steal – Cybersecurity News [June 02, 2025]

by DuoCircle

 

From hidden backdoors on GitHub to fake Fastlane plugins hijacking social media bots, this week’s cyber updates spotlight how trust in familiar tools is being silently exploited. Major brands like The North Face and Cartier are also dealing with breaches, and U.S. agencies face urgent patch deadlines due to active vulnerabilities. Let’s take a closer look!

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Why transactional emails should always be DKIM-signed

Why transactional emails should always be DKIM-signed

 

Not every email that you send is important, but transactional emails— the ones that confirm your payments, send shipping updates, or reset your password—are especially critical. That’s not just because they carry important information, but also because your users need to act on it quickly.

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SPF Record Format: Essential Guidelines for Email DNS Configuration

SPF Record Format: Essential Guidelines for Email DNS Configuration

When it comes to managing your email communication, ensuring that your messages land in the right inbox can feel a lot like navigating a minefield. One misstep, and your carefully crafted emails could end up getting sidestepped—or worse, flagged as spam! A core part of this journey involves understanding and configuring SPF records, which serve as gatekeepers for your domain’s email integrity.

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FIDO2: A guide to securing your accounts beyond passwords

FIDO2: A guide to securing your accounts beyond passwords

 

We’ve all been there— forgotten passwords, set ones that were too simple to be hacked, or used the same passwords across all accounts. But ideally, your priority should be security, not convenience. 

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Cetus Protocol Breach, DragonForce Supply Attack, MATLAB Ransomware Disruption – Cybersecurity News [May 26, 2025]

Cetus Protocol Breach, DragonForce Supply Attack, MATLAB Ransomware Disruption – Cybersecurity News [May 26, 2025]

Cetus Protocol Breach, DragonForce Supply Attack, MATLAB Ransomware Disruption – Cybersecurity News [May 26, 2025]

by DuoCircle

 

We’re back with the week’s cybersecurity round-up of a mix of high-stakes breaches, targeted malware campaigns, and growing concerns around supply chain vulnerabilities. Each of these incidents highlights different tactics attackers are using to exploit trust, access, and visibility. Read on for all the details.

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Understanding SPF Record Example: A Step-by-Step Guide to Email Validation

Understanding SPF Record Example: A Step-by-Step Guide to Email Validation

Email is a cornerstone of communication, but imagine sending a message that never arrives or worse, ends up in someone’s spam folder. Frustrating, right? That’s where SPF records come into play. They help email servers decide whether the emails they receive are from someone who’s actually allowed to send them. You might think creating an SPF record sounds complicated, but it’s simpler than you might expect. It’s all about making sure the right people can send messages on your behalf while keeping the unwanted ones at bay. This guide will walk you through setting up your own SPF record step by step, ensuring your emails get where they need to go—without any hiccups along the way!

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SPF Record Breakdown: Configuration Tips for Enhanced Email Security

SPF Record Breakdown: Configuration Tips for Enhanced Email Security

Understanding SPF Records for Email Security Have you ever wondered why some of your emails vanish into spam folders while others land right in the inbox? The secret often lies in something called the SPF record. Think of it as a digital passport for your emails, showing the world which servers are allowed to send messages for your domain. Properly managing this little-known aspect can save you from headaches and ensure that your emails are delivered with confidence.

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PowerSchool Data Extortion, Cellcom Cyberattack Confirmed, Hackers Exploit Gaps – Cybersecurity News [May 19, 2025]

PowerSchool Data Extortion, Cellcom Cyberattack Confirmed, Hackers Exploit Gaps – Cybersecurity News [May 19, 2025]

PowerSchool Data Extortion, Cellcom Cyberattack Confirmed, Hackers Exploit Gaps – Cybersecurity News [May 19, 2025]

by DuoCircle

 

This week in cybersecurity–a student admits to a massive school data hack, a major mobile network outage turns out to be a cyberattack, and hackers are actively spying on global aid operations. We also look into a DNS hijacking campaign affecting top organizations, and a trusted VMware tool gets caught in a malware-laced supply chain attack. Here’s a quick look at what’s been happening.

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