Good videos to up my investigation skills

Hey guys. Been a soc analyst for a couple years now so feel pretty competent and got all the basics skills down. But I was looking for possible YouTube channels or blogs that can help up my investigation game. I notice the majority of videos i see are either red team or malware analysis. I was looking more like videos where someone investigates an alert they got in a siem and then goes over everything they do to investigate. Just …

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