F5 Breach Response, Windows 10 Patch, Oracle Security Flaws – Cybersecurity News [October 13, 2025]

F5 Breach Response, Windows 10 Patch, Oracle Security Flaws – Cybersecurity News [October 13, 2025]

F5 Breach Response, Windows 10 Patch, Oracle Security Flaws – Cybersecurity News [October 13, 2025]

by DuoCircle

 

It’s been a hectic week for enterprise security, with several major companies pushing out critical fixes. F5 admitted that attackers stole its BIG-IP source code, which even triggered a federal emergency directive. Microsoft wasn’t far behind, releasing 183 patches, including three zero-days, just as Windows 10 support was ending, and it had to tighten security on Edge’s IE mode after reports of it being exploited. On top of that, successive flaws struck Oracle’s E-Business Suite, and Cisco devices were hit by a new campaign called Operation Zero Disco that used a zero-day exploit to deploy stealthy Linux rootkits.

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Ways to Migrate Office 365 to Office 365 Without Data Loss

Ways to Migrate Office 365 to Office 365 Without Data Loss

 

Office 365 migration, particularly tenant-to-tenant migration within Microsoft 365 environments, is a critical process that organizations undertake during mergers, acquisitions, or restructuring. This cloud migration involves the complex movement of data, identities, and permissions from one Office 365 tenant to another, ensuring retention of data integrity and continuity in cloud collaboration.

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How do DKIM replay attacks happen?

How do DKIM replay attacks happen?

 

DKIM was designed to ensure email integrity. You sign the message, verify that it came from your domain, and trust that no one can tamper with it. But attackers have found a way to turn this mechanism against domain owners through something called a DKIM replay attack. By capturing a legitimately signed message and resending it later, they can make phishing emails appear authentic and easily bypass both DKIM and DMARC checks.

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365 to 365 Migration Explained: From Exchange Online to Microsoft 365 Groups

365 to 365 Migration Explained: From Exchange Online to Microsoft 365 Groups

 

365 to 365 migration refers to the process of transferring data, resources, and user identities from one Microsoft 365 tenant to another. This often occurs during corporate mergers, acquisitions, divestitures, or tenant restructuring, necessitating a comprehensive Microsoft 365 tenant migration strategy. Unlike simpler data migrations, a 365 tenant-to-tenant migration encompasses complex components such as Office 365 email migration, SharePoint Online migration, OneDrive migration, and Microsoft Teams migration, relying on robust tenant-to-tenant migration tools and best practices to ensure seamless data relocation.

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Microsoft Office 365: How to Setup DMARC Record and Improve Email Authentication

Microsoft Office 365: How to Setup DMARC Record and Improve Email Authentication

 

Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a critical email authentication protocol standardized by RFC 7489 designed to enhance email security by preventing domain spoofing and email fraud. DMARC builds upon two foundational authentication mechanisms — Sender Policy Framework (SPF) and DomainKeys Identified Mail (DKIM) — by enabling domain owners to publish policies that instruct receiving mail transfer agents (MTAs) on how to handle messages that fail authentication checks.

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Integrating Google Apps DKIM With SPF And Dmarc For Complete Email Security

Integrating Google Apps DKIM With SPF And Dmarc For Complete Email Security

 

In today’s cyber threat landscape, robust email security is paramount for organizations leveraging Google Workspace and Gmail as their primary communication tools. Integrating DomainKeys Identified Mail (DKIM) with Sender Policy Framework (SPF) and Domain-based Message Authentication, Reporting, and Conformance (DMARC) offers a comprehensive approach to email authentication and fraud prevention.

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DMARC reporting: When to enable it and how to address privacy concerns

DMARC reporting: When to enable it and how to address privacy concerns

DMARC reporting: When to enable it and how to address privacy concerns

by DuoCircle

 

DMARC reports are an essential aspect of your email authentication setup. Unlike what most organizations think, DMARC is not a one-time stint that you can implement and forget about. To get the most out of the authentication protocol and properly protect your domain, you must stay on top of things and monitor what’s going on in your domain.

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Hackers Hijack WordPress, SonicWall Backup Breach, Oracle Data Theft – Cybersecurity News [October 06, 2025]

Hackers Hijack WordPress, SonicWall Backup Breach, Oracle Data Theft – Cybersecurity News [October 06, 2025]

Hackers Hijack WordPress, SonicWall Backup Breach, Oracle Data Theft – Cybersecurity News [October 06, 2025]

by DuoCircle

 

We are once again back with fresh news pieces highlighting the important news where major platforms and giant industries have been targeted. To start with, a critical WordPress flaw is being widely exploited to hijack administrator accounts, with over 13,800 attack attempts recorded. SonicWall confirmed that firewall backup files for all cloud backup customers were exposed in a breach, overturning earlier claims of limited impact.

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Jaguar Land Rover cyberattack: How a lack of cybersecurity systems led to catastrophe!

Jaguar Land Rover cyberattack: How a lack of cybersecurity systems led to catastrophe!

Jaguar Land Rover cyberattack: How a lack of cybersecurity systems led to catastrophe!

by DuoCircle

 

Jaguar Land Rover, the biggest car manufacturer in the UK, has come to a complete standstill after the recent cyberattack incident. JLR is still struggling with the aftermath of the severe cyberattack. This unfortunate incident is a staggering reminder of how modern-day manufacturers are prone to threat attacks. 

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