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Microsoft Rushes Emergency Patch for Office Zero-Day
Mark Anderson | Security | January 30, 2026

Euclid Security Newsletter

January 30, 2026 

Microsoft Rushes Emergency Patch for Office Zero-Day

To exploit the vulnerability, an attacker would need either system access or be able to convince a user to open a malicious Office file.

 

Security News

Fake ChatGPT browser extensions are stealing your login credentials

If you've installed a browser extension to enhance your ChatGPT experience, you might want to think again.

82% of hackers now use AI

A new study from Bugcrowd finds that 82 percent of hackers now use AI in their workflows, up from 64 percent in 2023, with AI primarily used for automating tasks, accelerating learning, and analyzing data.

Apple's new iPhone and iPad security feature limits cell networks from collecting precise location data

A new security feature rolled out to select models of the latest iPhones and iPads this week will make it more difficult for law enforcement, spies, and malicious hackers to obtain a person's precise location data from their phone provider.

WinRAR vulnerability still a go-to tool for hackers

State-sponsored hackers and financially motivated attackers continue leveraging a critical WinRAR vulnerability (CVE-2025-8088) that's been fixed over half a year ago.

Password Reuse in Disguise: An Often-Missed Risky Workaround

Near-identical password reuse continues to slip past security controls, often unnoticed, even in environments with established password policies.

Grammarly and QuillBot are among widely used Chrome extensions facing serious privacy questions

A new study shows that some of the most widely used AI-powered browser extensions are a privacy risk. They collect lots of data and require a high level of browser access.

 

Important Updates & Patches

Google Releases Security Updates for Chrome

Google releases a security update for a High vulnerability in the background fetch API.

 

Dan's Corner

Google rolls out Android theft protection feature updates

​Google has introduced stronger Android authentication safeguards and enhanced recovery tools to make smartphones more challenging targets for thieves.

 

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

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