[REVISION HISTORY]
Browser extension malware and Chrome security overhaul
Updated 3 times since CLSTR started tracking revisions of this situation.
What changed
2026-07-31 18:24 UTC → 2026-08-01 08:45 UTC ·
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The coordinated campaign of fraudulent Chrome and Edge extensions uncovered in June 2026 prompted a series of rapid security actions. Microsoft removed 119 malicious Edge add‑ons and suspended over 90 developer accounts, while Google responded with Chrome 150.0.7871.46/47, retiring Manifest V2, adding HTTPS‑first connections, deeper Wallet integration and the Gemini Spark AI assistant, and a $319 000 bug‑bounty that covered 433 fixes, including 20 critical bugs. July emergency builds patched 12 high‑severity CVEs across Chrome 150.0.7871.128‑.182, and other vendors released related updates. On 29 July Google announced a security overhaul, fixing 1,072 bugs across versions 149 and 150—more than the total of the prior 23 releases—and uncovering a 13‑year‑old sandbox‑escape (CVE‑2026‑3545). The firm moved to a two‑week major‑release cadence, began bi‑weekly security updates, and piloted “dynamic patching” that replaces background processes without a full restart. A pilot announced on 31 July confirmed the AI‑driven workflow: Gemini‑powered agents scan code, generate fixes and run automated tests, enabling a twice‑weekly release cadence for major milestones and weekly security patches. Chrome 151, released earlier in July, incorporated 370 additional fixes, including seven critical ones, using the dynamic‑patching system that keeps leverages Chrome’s multi‑process architecture to swap child processes on the fly, keeping the browser continuously up‑to‑date for billions of users worldwide. The accelerated two‑week cycle will start with Chrome 153 in September 2026, mirroring Microsoft Edge, to counter AI‑powered attacks that exploit newly released patches.
Versions
- 2026-08-01 08:45 UTC Browser extension malware and Chrome security overhaul
- 2026-07-31 18:24 UTC Browser extension malware and Chrome security overhaul
- 2026-07-31 17:13 UTC Browser extension malware and security responses
- 2026-07-31 15:04 UTC Browser extension malware and security responses
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