It's not a security check for you. It's a captcha that the website uses to verify that you are a human being and not a bot. A captcha (an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge-response test used in computing to determine whether or not the user is human. A human being would be able to read the captcha, but the captcha might be visually complicated enough to stop some bots from entering the site.
If there was a way to easily get rid of or bypass the captcha, then it would defeat the purpose of the captcha, which is to protect the website from being accessed by bots.
Can someone tell me why down voting this question? Is it unclear or not useful? – Siddiqui Noor – 2016-01-16T17:55:05.283
1@SiddiquiNoor I didn't downvote, but I think it's because we can't tell you anything useful without knowing what web site is producing the message. Also, questions about specific web apps/sites are off-topic here. – Ben N – 2016-01-16T18:00:06.843
1Only the down voter can say you why... for me it's an honest question even if you can try to give an example page from where it cames out... probably it is a pop up advertisement from another page. Use add on like adblock or ghostery to get rid of it. And set in the options to ask or to block pop up windows... – Hastur – 2016-01-16T18:04:58.647
1@BenN I am not asking for any specific web apps/sites. It comes for other sites too. That was an example. – Siddiqui Noor – 2016-01-16T18:20:55.310
@Hastur It is not a pop up advertisement. I will use adblock or ghostery, thanks. – Siddiqui Noor – 2016-01-16T18:22:06.697