Top Tech Headlines – September 30, 2025

It’s the end of the month, but the tech world isn’t slowing down. Today’s top stories include a major zero-day in mobile browsers, a Microsoft patch you don’t want to miss, a surprising data leak from a cloud giant, and big updates in Linux world. Let's break it all down.

Critical Zero-Day in Mobile Browsers Puts Millions at Risk

Security researchers have disclosed a new zero-day vulnerability affecting mobile versions of both Chrome and Safari. The flaw allows attackers to execute code remotely by convincing users to visit a malicious website. Both Apple and Google are working on patches, but until updates are released, users are advised to avoid unknown links and consider using hardened browsing apps.

Microsoft Patches Windows Bug That Let Hackers Bypass Defender

Microsoft has issued a critical update for a vulnerability in Windows Defender that allowed malicious scripts to run unchecked on systems previously thought secure. The flaw was being actively exploited in limited targeted attacks. If you haven’t updated yet, this is your sign to run Windows Update ASAP.

Massive Cloud Provider Data Leak Affects Thousands of Businesses

One of the world’s top cloud hosting providers suffered a data misconfiguration error, exposing sensitive data from over 3,000 business clients. The company hasn’t disclosed which clients were affected, but cybersecurity experts warn that the leaked information could be used for phishing and targeted attacks. It's a harsh reminder that trusting someone else’s storage can still leave your data vulnerable.

Ubuntu Announces Major Kernel Upgrade for LTS Releases

Ubuntu has rolled out a long-anticipated kernel update to its 22.04 and 20.04 LTS editions, bringing improved hardware support and tighter security. The update integrates patches for multiple recent CVEs and adds support for newer CPUs and GPUs. If you're running Ubuntu from a bootable USB, now’s a great time to refresh your image.

Linux Mint 22 Beta Drops with Streamlined Interface and Privacy Tools

The Linux Mint team has released the beta for version 22, and it’s packed with usability improvements and built-in privacy protection. Highlights include a simplified installer, native VPN integration, and fewer background trackers. It’s shaping up to be a well-rounded OS for both beginners and power users—especially for those booting from secure USB drives.

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