Latest cybersecurity reporting from selected sources.

Microsoft has found a malicious Chrome extension that posed as the AI search engine Perplexity and quietly logged what people searched for. It routed every query and every character typed into the address bar through an attacker-controlled server before redirecting users to real results

Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its fourth zero-day of 2026, and an emergency update for Adobe Reader nixes an actively exploited flaw that can lead to remote code execution.

Cybersecurity researchers have disclosed a vulnerability in Anthropic's Claude Google Chrome Extension that could have been exploited to trigger malicious prompts simply by visiting a web page

Cybersecurity researchers have disclosed details of a now-patched security flaw in Google Chrome that could have permitted attackers to escalate privileges and gain access to local files on the system

Cybersecurity researchers have disclosed details of an ongoing campaign dubbed KongTuke that used a malicious Google Chrome extension masquerading as an ad blocker to deliberately crash the web browser and trick victims into running arbitrary commands using ClickFix-like lures to deliver a previously undocumented remote access trojan (RAT) dubbed ModeloRAT

Cybersecurity researchers have disclosed details of a malicious Google Chrome extension that's capable of stealing API keys associated with MEXC, a centralized cryptocurrency exchange (CEX) available in over 170 countries, while masquerading as a tool to automate trading on the platform

The zero-day exploitation of a now-patched security flaw in Google Chrome led to the distribution of an espionage-related tool from Italian information technology and services provider Memento Labs, according to new findings from Kaspersky

A vulnerability disclosed 18 years ago, dubbed "0.0.0.0 Day", allows malicious websites to bypass security in Google Chrome, Mozilla Firefox, and Apple Safari and interact with services on a local network. [...]

The move follows a series of reported compliance failures and lack of progress in addressing publicly disclosed incidents

Google has announced that it's going to start blocking websites that use certificates from Entrust starting around November 1, 2024, in its Chrome browser, citing compliance failures and the certificate authority's inability to address security issues in a timely manner

Exploit code is circulating for CVE-2024-4761, disclosed less than a week after a similar security vulnerability was disclosed as being used in the wild.

The country has issued a recommendation to update after a high-risk vulnerability was disclosed last week in the browser.

So far this year, Google has disclosed six vulnerabilities that attackers were actively exploiting before the company had a patch for them.

Google's Threat Analysis Group (TAG) on Thursday disclosed that it acted to mitigate threats from two distinct government-backed attacker groups based in North Korea that exploited a recently-uncovered remote code execution flaw in the Chrome web browser