DKIM Replay Attack- A New Cyberthreat

DKIM Replay Attack- A New Cyberthreat

 

In DKIM replay attacks, bad actors exploit highly reputed email domains and produce legitimate DKIM keys corresponding to them. The produced keys are then used to bypass DKIM filters and compromise the online security of thousands of recipients. All this is possible because, upon reception, the recipients’ mail servers find no discrepancies in DKIM authentication; hence, the emails are placed in the primary inboxes.

(more…)

Microsoft’s Per Day Limit on Exchange Online Bulk Emails to Minimize Spam Instances

Microsoft’s Per Day Limit on Exchange Online Bulk Emails to Minimize Spam Instances

Microsoft’s Per Day Limit on Exchange Online Bulk Emails to Minimize Spam Instances

by Duocircle

 

From January 1, 2025, all Microsoft Exchange Online users will be subjected to a daily limit of 2,000 external recipients per 24 hours. The reason for implementing this limit is to stop overburdening the resources involved in the process. Microsoft Exchange Online was never designed to send bulk emails, and that’s why the resources are not capable of handling high-volume email traffic.

(more…)

UK Defence Payroll Breached, Wichita Ransomware Pause, Lockbit Teases Reveal – Cybersecurity News [May 06, 2024]

UK Defence Payroll Breached, Wichita Ransomware Pause, Lockbit Teases Reveal – Cybersecurity News [May 06, 2024]

UK Defence Payroll Breached, Wichita Ransomware Pause, Lockbit Teases Reveal - Cybersecurity News [May 06, 2024]

by Duocircle

 

Here’s our latest cybersecurity news piece that will show you how to keep yourself safe from all the new tactics of cybercriminals and what’s going on in the digital security space. Join us, and we’ll share how the UK Ministry of Defence’s payroll data was compromised, why Wichita had to halt its IT network operations, the new details about LockBit and its potential return, NSA’s alert on North Korean threat actors misusing DMARC policies for spear phishing and intelligence exfiltration, and the data compromise of 800K individuals by the University System of Georgia.

(more…)

PCI DSS v4.0 and the Role of DMARC in Boosting Security: A Guide

Kevin Mitnick- One of The Greatest Showmen in the Cyber World!

Kevin Mitnick- One of The Greatest Showmen in the Cyber World!

by Duocircle

 

Kevin Mitnick is an unforgettable name in the history of cyber crimes. He was known by the name of “The World’s Most Famous Hacker.” An American computer security consultant, bestseller author as well as famous security speaker, Kevin David Mitnick created ripples in the cybersecurity world with his notorious hacking stints.

(more…)

How Can Third-Party Marketing Agencies Send DMARC Compliant Emails on Behalf of Others?

How Can Third-Party Marketing Agencies Send DMARC Compliant Emails on Behalf of Others?

How Can Third-Party Marketing Agencies Send DMARC Compliant Emails on Behalf of Others?

by Duocircle

 

Businesses often outsource marketing work to third-party agencies as they have people with special skill sets and expertise in areas like branding, digital marketing, social media management, media relations, content creation, etc. Moreover, it’s a cost-effective measure because hiring an in-house marketing team can be heavy on pockets, especially for small and medium-sized businesses.

(more…)

Fraudulent Executive Sentenced, Hacktivists Target Water, Router Login Theft – Cybersecurity News [April 29, 2024]

Fraudulent Executive Sentenced, Hacktivists Target Water, Router Login Theft – Cybersecurity News [April 29, 2024]

Fraudulent Executive Sentenced, Hacktivists Target Water, Router Login Theft - Cybersecurity News [April 29, 2024]

by Duocircle

 

We’re back here with the latest cybersecurity news that shook the world this week. We’ll shed light on the executive sentence issued by the U.S. military, the alert about Pro-Russian hacktivists targeting water infrastructure, the new Cuttlefish malware, the cyberattack on London Drugs, and how scammers are targeting data website users for stealing credit card details and personal information. Stay tuned!

(more…)

Why is Sending Forged and Impersonated Emails Easy?

Why is Sending Forged and Impersonated Emails Easy?

 

On average, 3.4 billion forged emails are sent each day, and in the fourth quarter of 2023 alone, 1339 brands became victims of phishing attacks. The number of such instances is increasing year by year because email forging is becoming easier with automated tools, artificial intelligence, cybercrime-as-a-service (CaaS), etc. In fact, as per a report by SlashNext, there has been a 1,265% increase in phishing attacks in the 12 months from Q4 2022 to the end of Q3 2023.

(more…)

Decoding Canonicalization: The Reason Behind DKIM Signature Verification Failures

Decoding Canonicalization: The Reason Behind DKIM Signature Verification Failures

Decoding Canonicalization: The Reason Behind DKIM Signature Verification Failures

by Duocircle

 

When you send an email to someone, it embarks on a complex journey before it reaches the recipient’s inbox. While this might seem like a seamless, instantaneous process, it is prone to being tampered with along the way. This is why it is recommended that you implement DomainKeys Identified Mail (DKIM) for your email communications.

(more…)

Pin It on Pinterest