Government has acess to users webcams

UK, US spies hacked into webcam feeds of millions of Yahoo users | Fox News
US hacked and recorded millions of users with their webcams.

Seems the government has easy enough access to any computer running windows.
Is linux more secure, or is this exploit something to do with internet web?

Today you must assume anything you have on the PC or do on the web, if the government wants it they get it.

U.S. and British spy agencies intercepted and stored images from the webcams of millions of likely innocent Yahoo users, including “large quantities” of sexually explicit images, the Guardian reported Thursday -- a revelation the web giant described as “a whole new level of violation.”

A secret program called Optic Nerve appears intended to collate a digital mugbook of sorts, snapping screenshots every 5 minutes or so from user feeds. But the program targeted indiscriminately, regardless of whether the webcam owner was an intelligence target or not.

More than 1.8 million user accounts from around the world were accessed in one six-month period alone.

Seems the government has easy enough access to any computer running windows.
Is linux more secure, or is this exploit something to do with internet web?

This has nothing to do with the security of your computer but with the interception of the data it is sending. Whether you are using Windows, Linux, Mac OS, etc., makes no difference. Once data has left your local network it is beyond your control.