Today’s browsers are almost operating systems unto themselves. They can run software programs and encrypt files. These capabilities, combined with the browser’s access to the host computer’s files – including ones in the cloud, shared folders and external drives – via the File System Access API creates a new opportunity for ransomware.
Imagine you want to edit photos on a benign-looking free online photo editing tool. When you upload the photos for editing, any hackers who control the malicious editing tool can access the files on your computer via your browser. The hackers would gain access to the folder you are uploading from and all subfolders.
Read more…
Source: MSN News
Related:
- Three critical vulnerabilities patched by SAP
December 10, 2025
SAP has released its December cumulative security update, through which it fixed 14 vulnerabilities found in different products. Among them are three critical-severity flaws which should be addressed without delay. The full list of addressed vulnerabilities can be found on this link. The most critical bug fixed this time is a code injection vulnerability discovered in ...
- React2Shell RCE flaw exploited by Chinese hackers hours after disclosure
December 8, 2025
Just as the experts predicted, cybercriminals are now actively exploiting the critical severity vulnerability in React Server Components (RSC) that was discovered late last week. To make matters worse, the crooks observed abusing the bug seem to be working for the Chinese government. Late last week, the React team published a security advisory detailing a pre-authentication ...
- Leaks show Intellexa burning zero-days to keep Predator spyware running
December 5, 2025
Intellexa is a well-known commercial spyware vendor, servicing governments and large corporations. Its main product is the Predator spyware. An investigation by several independent parties describes Intellexa as one of the most notorious mercenary spyware vendors, still operating its Predator platform and hitting new targets even after being placed on US sanctions lists and being under ...
- CVE-2025-55182 React vulnerability could soon be exploited – so patch now
December 5, 2025
eact is one of the most popular JavaScript libraries, which powers much of today’s internet. Researchers recently discovered a maximum-severity vulnerability. This bug could allow even the low-skilled threat actors to execute malicious code (RCE) on vulnerable instances. Earlier this week, the React team published a new security advisory detailing a pre-authentication bug in multiple versions ...
- Shai Hulud 2.0, now with a wiper flavor
December 3, 2025
In September, a new breed of malware distributed via compromised Node Package Manager (npm) packages made headlines. It was dubbed “Shai-Hulud”, and Kaspersky published an in-depth analysis of it in another post. Recently, a new version was discovered. Shai Hulud 2.0 is a type of two-stage worm-like malware that spreads by compromising npm tokens to republish ...
- Google patches 107 Android flaws, including two being actively exploited
December 2, 2025
Google has patched 107 vulnerabilities in Android in its December 2025 Android Security Bulletin, including two high-severity flaws that are being actively exploited. The December updates are available for Android 13, 14, 15, and 16. Android vendors are notified of all issues at least a month before publication, but that doesn’t always mean the patches ...