Daily Learning - Day 25

Date: 25th February 2017

Below are the topics i learnt today..

Follow Hashtag: #SKC100DaysofLearning

Topic 1: Security - Find the Technology Components used in Web Application.


Are you interested to know which websites use a certain technology

Wappalyzer is a browser extension that uncovers the technologies used on websites. It detects content management systems, eCommerce platforms, web servers, JavaScript frameworks, analytics tools and many more.

Install this on your web browser:  https://wappalyzer.com/download



Topic 2: Security - Massive Bug May Have Leaked User Data From Millions of Sites. So … Change Your Passwords

THE INTERNET INFRASTRUCTURE company Cloudflare, which provides a variety of performance and security services to millions of websites, revealed late Thursday that a bug had caused it to randomly leak potentially sensitive customer data across the internet.

And the Bug is called as - "CloudBleed"

Lessons Learnt:

  • It is necessity to know, the third-party components of code added to your application.           See Topic -1 : To find out the Third-Party Components and Server Details.


  • Check if there are any vulnerabilities recorded on the Third-Party Components and Server. It may not be their code is perfect
  • When you see any Bug, even not serious. Act quickly to address the Bug as a Preliminary Fix after learning about the Bug.
  • Permanently Patch the Bug on the systems.
  • To Mitigate the risk, Option is to Change the Password which ever sites linked to Cloudfare.
  • Other Options for Defense: 2-FA Security Authorization.




Tool: Find out which CDN Service, your website is using.


Change.Org uses Cloudfare as CDN Service.





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