Cybersecurity threats are rapidly evolving at an unprecedented rate, making cybersecurity more critical than ever. This week, we uncovered a new malware targeting macOS users through fake browser updates and a stealthy cyberattack exploiting Windows utilities to evade detection. We will also explore how hackers deploy payment skimmers using hidden image tags, as well as discover how the latest cyber espionage campaigns target big industries and international corporations. Lastly, we will cover the news highlighting recent data breaches affecting thousands of individuals and organizations across the globe.
There is no doubt that DMARC is deployed to prevent phishing and spoofing emails; however, misconfigured DMARC records are synonymous with exploitable vulnerabilities. DMARC is implemented in tandem with SPF and DKIM. This email authentication structure compensates for the drawbacks of SPF and DKIM. SPF’s drawback is that it is highly likely to break when emails are forwarded; this means when someone forwards a legitimate email, the receiving server will either mark it as spam or reject it. DKIM’s drawback is that it triggers false positives because of inadvertent message modifications.
What is the role of cryptography in the healthcare industry?
by DuoCircle
Here’s a bitter reality: Cyberattackers leave no individual or sector behind.
We know that data breaches and cyberattacks have become a reality today— thanks to technological evolution. However, the actual issue arises when critical services like healthcare become the target of malicious activities.
Massive Cyber Attack, ClickFix Deploys RAT, Hacker Group Attacks – Cybersecurity News [February 10, 2025]
by DuoCircle
Cybercriminals nowadays are getting smarter and adapting social engineering and ransomware techniques to attack their targets. This week, we’re covering a series of critical attacks that smartly leveraged the use of BotNet, affecting around 2.8 million devices. Also, we will uncover how social engineering attacks were executed to run unintended malicious PowerShell commands.
DKIM works using encryption techniques and digital signatures that help the sender’s server transparently sign outgoing emails so that the recipient’s server can verify if the content has been altered in transit. DKIM is highly sensitive to message modifications; even the slightest difference between the content the sender sent and the recipient received causes DKIM verification to fail.
What are the most important email security protocols, and how do they protect your communications?
by DuoCircle
If you send marketing email campaigns to your clients almost every day, you will know that email is one of the key channels to connect with your audience. But what you might not realize is that it is also the most vulnerable channel that lets cybercriminals in and leaves your entire ecosystem exposed to phishing, spoofing attacks, and data breaches.
The key differences between Sender Policy Framework and Sender ID
by DuoCircle
The primitive version of SMTP (Simple Mail Transfer Protocol) didn’t have a feature to verify the email sender’s authenticity, leaving room for phishing and spoofing instances. Over time, emails became one of the most exploitable attack vectors. It was easier for threat actors to modify the ‘From’ field in an email to impersonate banks, governments, and well-known brands. They would send millions of potentially fraudulent emails each day, urging recipients to ‘reset their password’ or ‘verify their account,’ leading to credential theft.
Zip Flaw Exploited, Meta Confirms Spyware, ENGlobal Ransomware Outage – Cybersecurity News [February 03, 2025]
by DuoCircle
Cyber threats are becoming more sophisticated with each day passing by, attacking individuals and businesses unpredictably. This week’s security news covers news pieces directly curated from authentic sources. We will discuss how a new exploit in 7-Zip allowed attackers to bypass Windows security and how Meta identified a spyware attack on 90 journalists and activists.
Everything you need to know about setting up email authentication on Mailchimp!
by DuoCircle
If you want your emails to reach your subscribers’ inboxes without any hassle, setting up email authentication for your authorized domain is something you can’t afford to ignore. Domain authentication enables you to send out your emails to the right inbox. It also enables you to maintain your subscriber base and grow them eventually by keeping them actively engaged.
![FrigidStealer Targets macOS, MAVInject Evades Detection, Stealthy Espionage Malware – Cybersecurity News [February 17, 2025]](https://www.duocircle.com/wp-content/uploads/2025/02/sender-policy-framework-6542.jpg)
![Massive Cyber Attack, ClickFix Deploys RAT, Hacker Group Attacks – Cybersecurity News [February 10, 2025]](https://www.duocircle.com/wp-content/uploads/2025/02/spf-validator-3271.jpg)
![Zip Flaw Exploited, Meta Confirms Spyware, ENGlobal Ransomware Outage – Cybersecurity News [February 03, 2025]](https://www.duocircle.com/wp-content/uploads/2025/02/spf-permerror-6464.jpg)
