add infosec certification links

content/en/docs/infosec/basics.md

@@ -17,10 +17,12 @@ Additional properties:
 - [Heather Adkins, Betsy Beyer, Paul Blankinship, Ana Oprea, Piotr Lewandowski, Adam Stubblefield (2020): Building Secure and Reliable Systems. O'Reilly Media](https://sre.google/books/building-secure-reliable-systems/)
 - [CNCF: Cloud Native Security Whitepaper Version 2](https://www.cncf.io/wp-content/uploads/2022/06/CNCF_cloud-native-security-whitepaper-May2022-v2.pdf)
 
-## Definitions
+## Definitions/Certifications
 
 - [IT-Grundschutz-Kompendium](https://www.bsi.bund.de/DE/Themen/Unternehmen-und-Organisationen/Standards-und-Zertifizierung/IT-Grundschutz/IT-Grundschutz-Kompendium/it-grundschutz-kompendium_node.html)
+- [Cloud Computing Compliance Criteria Catalogue (C5)](https://www.bsi.bund.de/DE/Themen/Unternehmen-und-Organisationen/Informationen-und-Empfehlungen/Empfehlungen-nach-Angriffszielen/Cloud-Computing/Kriterienkatalog-C5/kriterienkatalog-c5_node.html)
 - [RFC 2350 - Expectations for Computer Security Incident Response](https://www.rfc-editor.org/rfc/rfc2350.html)
+- [European Cybersecurity Certification Scheme for Cloud Services (EUCS)](https://www.enisa.europa.eu/publications/eucs-cloud-service-scheme)
 
 ### Attack/Threat Analysis