Cortana can be used to open websites on Windows 10 when PC is locked

Microsoft's digital assistant Cortana could help hackers infect a computer running Windows 10 with a virus. A pair of independent Israeli security researchers found the major security flaw this week. By giving simple voice commands, they found they could install malware and launch websites from computer's lock screen. The hack works because Windows 10 allows a device to connect to a different network while it is still locked. This means an attacker can connect a USB with a network adapter and ask Cortana to open an unencrypted and potentially dangerous websites.