Must aware during web surfing – protect your personal privacy – turn off your camera on web browser

Preface:

What’s our objective to discussion this topic today? Our goal is going to protect user privacy. As we know, internet traffic are under surveillance. This activities not limited to China nowadays. It was includes the major leader countries in Europe, England and USA.

Situation in China

The country like China provides a clear announcement. The China government was told that all internet traffics in China are under surveillance. And thus that they build the great wall (firewall).  (Tianhe-1 and Tianhe-2 (Milkyway-2) are capable to take this responsibility.

2016 Supercomputer magazine

Situation in United State

How about the surveillance program status from NSA (National security agency) . The NSA has official announcement was that after a comprehensive review of mission needs, current technological constraints, United States person privacy interests, and certain difficulties in implementation, NSA has decided to stop some of its activities conducted under Section 702. For more details, please find below URL for references:

NSA Statement: NSA Stops Certain Section 702 “Upstream” Activities – For more detail, please refer below url for reference.

https://www.nsa.gov/news-features/press-room/statements/2017-04-28-702-statement.shtml

NSA Stops Certain Foreign Intelligence Collection Activities Under Section 702 – For more detail, please refer below url for reference.

https://www.nsa.gov/news-features/press-room/press-releases/2017/nsa-stops-certain-702-activites.shtml

NSA Transparency Report: THE USA FREEDOM Act Business Records FISA Implementation – 15 January 2016 – For more detail, please refer below url for reference.

https://www.nsa.gov/about/civil-liberties/reports/assets/files/UFA_Civil_Liberties_and_Privacy_Report.pdf

Above items given an idea to people our communications (electronic or without electronic) are under surveillance. A positive thinking of idea told yourself that such policy are going to fight against crimes. Apart from that are you aware of your personal privacy especially your mobile phone camera (Lens)? We known more secret on mobile phone recently. The execution of JavaScript or HTML5  allow access your mobile phone camera from Chrome (example shown as below):

Enable camera and microphone in packaged application for Chrome OS

navigator.webkitGetUserMedia({ audio: true, video: true },
            function (stream) {
                mediaStream = stream;
            },
            function (error) {
                console.error("Error trying to get the stream:: " + error.message);
            });    

Remark: The audio and video for a <webview>-embedded page require permission. It will alert mobile phone owner. A software developer hints that the require permission might embedded audioCapture and videoCapture and put the permissions in manifest.json. The mobile phone user might not aware.

Below HTML5 program language which allow to select the source and pass it in as optional into getUserMedia. This function is available in Chrome web browser.

Step 1: Select source

MediaStreamTrack.getSources(gotSources);

Step 2: pass it in as optional into getUserMedia

var constraints = {
  audio: {
    optional: [{sourceId: audioSource}]
  },
  video: {
    optional: [{sourceId: videoSource}]
  }
};
navigator.getUserMedia(constraints, successCallback, errorCallback);

Step 3: Put the permissions on manifest.json or manifest.xml. The mobile phone user might not aware.

Above audio and video capture functions only do a reverse engineering will transform to other criteria of function receive your personal photo. Are you aware of it ?

Summary:

Refer to above information. It looks that we need to spend more job affords to close the back door on your mobile phone, right? But the easy way to do from end user side is that just disable the camera on your mobile phone browser. Or just use a sticker to disable it. It is straight forward, bye!

 

 

 

 

 

 

 

 

 

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