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SonicWall Breached, Firewall Backup Data Exposed
Mark Anderson | Security | September 19, 2025

Euclid Security Newsletter

September 19, 2025 

SonicWall Breached, Firewall Backup Data Exposed

SonicWall is urging customers to reset credentials after their firewall configuration backup files were exposed in a security breach impacting MySonicWall accounts.

 

Security News

New York Blood Center Alerts 194,000 People to Data Breach

The compromised information includes names, Social Security numbers, driver's license or state ID numbers, bank account details for those using direct deposit, health information and test results.

Target-rich environment: Why Microsoft 365 has become the biggest risk

Microsoft 365 has become the central nervous system of modern business - and cybercriminals know it. Just as Windows became the primary target for attackers because of its market dominance in the 1990s and 2000s,

ChatGPT Targeted in Server-Side Data Theft Attack

The attack, dubbed ShadowLeak, targeted ChatGPT's Deep Research capability, which is designed to conduct multi-step research for complex tasks. OpenAI neutralized ShadowLeak after it was notified by Radware.

LinkedIn now uses your data for AI by default, opt out now!

LinkedIn is making major changes to its User Agreement and Privacy Policy, effective November 3, 2025. Among the most notable updates, the company will now use member data by default to improve its generative AI models, unless users manually opt out.

1 in 3 Android Apps Leak Sensitive Data

The report found that client-side weaknesses are fueling new avenues for abuse. Attackers can tamper with apps, intercept traffic and exploit compromised devices to bypass defenses.

Global hiring risks: What you need to know about identity fraud and screening trends

Hiring new employees has always carried some risk, but that risk is growing in new ways, and identity fraud is becoming more common in the hiring process.

Microsoft: Office 2016 and Office 2019 reach end of support next month

​​​​​Microsoft reminded customers again this week that Office 2016 and Office 2019 will reach the end of extended support in less than 30 days, on October 14, 2025.

 

Important Updates & Patches

Google Patches Zero Day for Chrome Browser

Google has released a security update for the Chrome stable channel to fix a zero-day vulnerability (CVE-2025-10585) reported by its Threat Analysis Group (TAG) on Tuesday.

WatchGuard warns of critical vulnerability in Firebox firewalls

WatchGuard has released security updates to address a remote code execution vulnerability impacting the company's Firebox firewalls.

 

Dan's Corner

Windows Paint is getting a Photoshop-like upgrade

Microsoft has been steadily transforming Paint into a more robust and advanced image editor. This update is coming soon in a future Windows update. Here's how to try its latest features.

 

An archive of Euclid Security Newsletters can be found on the support website.

Euclid Technology Solutions, LLC
540 Devall Drive, Suite 301
Auburn, AL 36832

P: 301-657-8089
E: support@euclidtechnology.com

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