<div>
I would advise you to use the <a href="http://krebsonsecurity.com/2013/03/help-keep-threats-at-bay-with-click-to-play/" rel="ugc">&quot;click-to-play&quot;</a> feature in your browser and use the HTML5 (non-flash) player on youtube. <br />
<br />
This will solve a lot of problems, as Flash has many security problems.<br />
<br />
As yo why this appears: best bet is you have a piece of adware on your computer that loads on top of that youtube video and tries to load other adverts from a different domain.<br />
<br />
HTH,<br />
Dan
</div>


I would advise you to use the "click-to-play" [http://krebsonsecurity.com/2013/03/help-keep-threats-at-bay-with-click-to-play/] feature in your browser and use the HTML5 (non-flash) player on youtube.

This will solve a lot of problems, as Flash has many security problems.

As yo why this appears: best bet is you have a piece of adware on your computer that loads on top of that youtube video and tries to load other adverts from a different domain.

HTH,
Dan

<div>
<div class="content wysiwyg-content">
hello, &nbsp;after each youtube video I play on my pc, I'm getting an Adobe pop-up error- &nbsp;Security error: 2123 Security sandbox violation. &nbsp;Can you please reply with instructions of how to resolve this issue and also what it means. &nbsp;thank you
</div>
</div>


hello,  after each youtube video I play on my pc, I'm getting an Adobe pop-up error-  Security error: 2123 Security sandbox violation.  Can you please reply with instructions of how to resolve this issue and also what it means.  thank you

how to resolve adobe flash player error?

Adobe Flash (formerly Macromedia Flash) is a cross-platform multimedia and software platform used to embed animations, video, and interactive applications into web pages and desktop and mobile applications and games. Flash displays text, vector and raster graphics to provide animations, video games and applications. It allows streaming of audio and video, and can capture mouse, keyboard, microphone and camera input. The ActionScript programming language allows creation of interactive animations, video games, web applications, desktop applications and mobile applications.