Updating Reference section hyperlinks
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 ## References
 
-* [OWASP - CSV Excel Macro Injection](https://owasp.org/index.php/CSV_Excel_Macro_Injection)
-* [Google Bug Hunter University - CSV Excel formula injection](https://sites.google.com/site/bughunteruniversity/nonvuln/csv-excel-formula-injection)
-* [Comma Separated Vulnerabilities - James Kettle](https://www.contextis.com/resources/blog/comma-separated-vulnerabilities/)
+* [OWASP - CSV Excel Macro Injection](https://owasp.org/www-community/attacks/CSV_Injection)
+* [Google Bug Hunter University - CSV Excel formula injection](https://bughunters.google.com/learn/invalid-reports/google-products/4965108570390528/csv-formula-injection)
 * [CSV INJECTION: BASIC TO EXPLOIT!!!! - 30/11/2017 - Akansha Kesharwani](https://payatu.com/csv-injection-basic-to-exploit/)
 * [From CSV to Meterpreter - 5th November 2015 - Adam Chester](https://blog.xpnsec.com/from-csv-to-meterpreter/)
-* [CSV Injection -> Meterpreter on Pornhub - @ZephrFish Andy](https://news.webamooz.com/wp-content/uploads/bot/offsecmag/147.pdf)
 * [The Absurdly Underestimated Dangers of CSV Injection - 7 October, 2017 - George Mauer](http://georgemauer.net/2017/10/07/csv-injection.html)
 * [Three New DDE Obfuscation Methods](https://blog.reversinglabs.com/blog/cvs-dde-exploits-and-obfuscation)
+* [Your Excel Sheets Are Not Safe! Here's How to Beat CSV Injection](https://www.we45.com/post/your-excel-sheets-are-not-safe-heres-how-to-beat-csv-injection)
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