Preventing phishing, spoofing, and ransomware attacks with DKIM records
by DuoCircle
Here’s a reality check— your email ecosystem is not secure enough!
Scammers are everywhere, prying on your outgoing emails, trying to intercept them, and convincing your clients that those emails are genuinely from you—a classic tactic that threat actors use to carry out their malicious scams. Lately, these techniques have become more sophisticated and common.
Windows Vulnerability Patched, Gmail Takeover Threat, PIH Health Ransomware – Cybersecurity News [December 09, 2024]
by DuoCircle
Zero-day vulnerabilities are the most critical because no one knows about them unless they are discovered. Therefore, malicious actors have greater chances of exploiting them before corrective measures are initiated. In this week’s news section, we shall discuss some zero-day vulnerabilities and the measures software producers take to mitigate the risks.
You probably already know that your logo is one of the biggest assets your brand owns, but wouldn’t it be great if it showed next to your emails in the inboxes of your recipients? The way to make that happen is BIMI, which stands for Brand Indicators for Message Identification. BIMI lets your logo show up next to your emails when they land in the recipient’s mailbox, which will help your brand stand out and build trust with your audience.
DKIM stands for DomainKeys Identified Mail, a cryptography-based email authentication protocol that helps receiving servers verify if an email sent from your domain was tampered with in transit. If you have DKIM deployed for your domain, then your server will affix a digital signature to the header with each outgoing email. This is a cryptographically secured signature that is produced using a private key that is known only to you. The counterpart of the private key is a public key, which is published in the DNS of your domain.
Banshee Stealer Unveiled, Corrupted Word Phishing, AI Voice Scams – Cybersecurity News [December 02, 2024]
by DuoCircle
The cybercriminal breed is expanding at a tremendous rate, necessitating urgent remedial measures from the relevant involved parties. Cybercriminals are also upscaling their operations and taking sufficient precautionary measures to prevent getting caught. Unfortunately, the public, who end up as unsuspecting victims, needs to pull up their socks and act responsibly to avoid becoming victims of cybersecurity fraud. This week’s cybersecurity news focuses on these aspects and aims to educate people to become more aware of the ever-evolving cyber threat landscape.
A 90-year-old man lost 1.15 crores (approx. $0.14 million USD) worth of life savings to digital arrest scammers who were arrested!
by DuoCircle
The entire world came crashing down for a Gujarat-based, 90-year-old man when a group of scammers got in touch with him under the pretext of digital arrest. They wiped away 1.15 crores worth of life savings while posing as Central Bureau of Investigation (CBI) officers, Mumbai police, and Enforcement Directorate (ED) officers. However, due to the awareness of the relatives and the agility and expertise of authorities, five threat actors got arrested red-handed as they withdrew a part of the scammed money.
How are DMARC enforcement and DMARC reporting different?
by DuoCircle
Domain-based Message Authentication, Reporting, and Conformance (DMARC) is one of the most powerful tools that security teams rely on to combat email-based attacks such as phishing, spoofing, and Business Email Compromise (BEC). Essentially, this tool enables domain owners to protect their domains from scammers by specifying how emails should be handled if they fail authentication checks. But the best part about DMARC is that it goes beyond enforcing policies to block malicious emails; it gives you insights into all that’s going on with your domain and its email traffic. We are talking about the reporting aspect of DMARC, which works hand-in-hand with enforcement to create a complete email security system.
5 efficient email security techniques for advanced persistent threats
by DuoCircle
An advanced persistent threat (APT) is a sophisticated, prolonged cyberattack in which a malicious actor gains access to a network and remains undetected for an extended period. This type of cyberattack is often motivated by political, financial, or strategic interests and aims to steal sensitive data, disrupt operations, or conduct espionage.
In this week’s cyber update, let’s examine the following case scenarios closely: a significant email data breach affecting multiple healthcare organizations, the discovery of a new Wi-Fi exploit used in targeted attacks, a malware campaign exploiting an outdated Avast driver, a high-profile extortion campaign targeting cloud storage platforms, and recent intrusion attempts on telecom infrastructure. These headlines are followed by matter-expert suggestions highlighting best practices one could follow to mitigate potential risks in the future.
How do we fix the custom domain configuration problems for Azure Email Communication?
by DuoCircle
Email deliverability is the backbone of email marketing campaigns; your effort in strategizing and executing the campaign will go to complete waste if half of your emails don’t reach the inboxes of the intended recipients. If you have deployed email authentication protocols like SPF and DKIM and ensured their TXT records aren’t amiss, receiving mail servers will consider emails sent from your domain by authorized senders as genuine and, hence, will not hesitate to place them in the inboxes.
Understanding the ins and outs of attack simulations
by DuoCircle
Attack simulation is a cybersecurity technique that tests defenses by imitating tactics, methods, and procedures used by threat actors to exploit vulnerabilities and launch attacks. Its purpose is to spot system vulnerabilities and help the security team remediate them before someone capitalizes on them for malicious purposes.
BreakSPF attack- working, impact, and preventive measures
by DuoCircle
Amidst the chaos in the cybersecurity landscape, a new type of cyberattack has been surfacing: BreakSPF. This latest attack framework bypasses the SPF authentication checks, invading target recipients’ inboxes with phishing and spoofing emails. This foul technique is capable of wreaking havoc on a large scale, jeopardizing the security of millions of domains across the world.
The wait is over! We’re here with this week’s round-up of the most pressing cybersecurity events and developments worldwide. The latest reports shed light on a significant data breach at a fintech giant, Finastra, efforts by the USDA to thwart phishing attacks with advanced authentication measures, a zero-day vulnerability impacting PAN-OS devices, VMware vCenter Server flaws being exploited post-patch, and a critical WordPress plugin vulnerability that puts millions of websites at risk.
With rapid digitization, email has become one of the most effective communication tools, both for business and corporate entities. However, the matter of concern is that the same emails are a favorite avenue for threat actors who exploit them to carry out malicious attacks, impersonate trusted brands, and spam naive users. This is where DMARC (Domain-based Message Authentication, Reporting, and Conformance) steps in! This is a robust email authentication protocol that can protect your domain as well as email recipients from the prying eyes of cybercriminals.
How to get started with BIMI for Zoho Mail- a guide to acquiring a verified checkmark
by DuoCircle
After Gmail and other key players, Zoho Mail is now openly supporting BIMI, allowing senders to display their brand logos with a blue verified checkmark in Zoho mailboxes. Email security risks are on the rise, stressing 95% of the top 500 cybersecurity leaders about it.
A roundup of TLDs that were the prime target of cyber attackers in 2024
by DuoCircle
As an unsuspecting internet user, if you come across an email from someone whose email address ends with a ‘.com’ or ‘.org,’ you might not think twice before opening it. After all, it comes from one of the widely recognized TLDs (top-level domains) out there. But in the context of cybersecurity, not everything that looks legitimate is to be trusted.
Your week’s wait is over since we are once again at your service, delivering the latest news and happenings in the cybersecurity world. The news pieces are freshly curated from authentic sources, providing you with insights on recent threat landscape scenarios. The news sections we cover further down the article include significant data breaches affecting healthcare providers, Microsoft’s latest patch addressing its vulnerabilities, the FBI’s warning about usage of hacked police email accounts, the rise of the new Interlock ransomware, and finally, the success of CISA’s ScubaGear tool, improving Microsoft 365 security configurations in cloud settings. Let’s explore and understand each section in detail.
Enforcing DMARC policies on incoming emails in Amazon WorkMail
by DuoCircle
Email domains use DNS to secure communications from eavesdroppers. They aim at preventing phishing, spoofing, ransomware, and impersonation attacks. DNS records also include a DMARC record, which is implemented and configured by the owner of the specific domain with the intention of allowing only authorized entities to send emails from that domain. A DMARC record consists of DMARC policies that instruct the receiving server on how to deal with unauthorized emails sent from your domain. By unauthorized emails, we mean outgoing emails from your domain that didn’t pass the DMARC checks.
AI is everywhere, from your smartphones and home appliances to high-efficiency systems in workplaces and industries. It is officially the era of artificial intelligence, where bots have taken over almost every domain, including cybersecurity.
![Windows Vulnerability Patched, Gmail Takeover Threat, PIH Health Ransomware – Cybersecurity News [December 09, 2024]](https://www.duocircle.com/wp-content/uploads/2024/12/sender-policy-framework-5.jpg)
![Banshee Stealer Unveiled, Corrupted Word Phishing, AI Voice Scams – Cybersecurity News [December 02, 2024]](https://www.duocircle.com/wp-content/uploads/2024/12/email-smtp-service-1.jpg)
![Healthcare Email Breaches, Wi-Fi Exploits Uncovered, Malware Exploits Avast – Cybersecurity News [November 25, 2024]](https://www.duocircle.com/wp-content/uploads/2024/12/spf-record-tester.jpg)
![Finastra Probes Breach, USDA Adopts FID, PAN-OS Zero-Day – Cybersecurity News [November 18, 2024]](https://www.duocircle.com/wp-content/uploads/2024/11/spf-validator-7.jpg)
![Healthcare Breaches Confirmed, Microsoft Releases Patches, FBI Issues Advisory – Cybersecurity News [November 11, 2024]](https://www.duocircle.com/wp-content/uploads/2024/11/sender-policy-framework-7.jpg)