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If you use Google Chrome or a Chromium-based browser such as Microsoft Edge, update it immediately and/or check it for updates over the coming days: there is a zero-day bug being “actively exploited” in the older version of Chrome that will also affect other vendors’ browsers.
Details are intentionally scant until enough of the wider world has installed the update, but the flaw exists in how Chrome handles heap overflows in V8, Chromium’s Javascript engine.
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