International Information System Security Certification Consortium interview questions

One of the worst, most humiliating hiring processes I have ever dealt with. Applied more than a month ago, did an initial interview with the talent manager and another with the hiring manager. Sent over additional communications and resources requested by the hiring manager, only to be ghosted for more than a month. Sent follow-ups to the hiring manager and then the talent manager and received no feedback. Sent a second follow-up to the hiring manager, politely requesting definitive feedback to know if I was still in the pipeline, only to receive a dismissive templated email 15 minutes later to let me know they had gone with another candidate. Months of no communication and ghosting, only to receive a generic email in 15 mins at their own convenience. Very unprofessional and indicative of the company culture as a whole.