Windows 10 users are being warned to stay vigilant as they could become prime targets for cyber criminals. As of October 14, Microsoft has stopped sending vital security updates to PCs operating on the Windows 10 system . This is due to the tech giant shifting its focus to the newer Windows 11 system , which will start receiving new features incompatible with the decade-old system. Despite the option to purchase a more current device, consumer watchdog Which? discovered that 28 per cent of tech