NC #555 Black Screen of Death, Don't Turn off SIP, Tenba Messenger Bag, Security Stuff

What would make not one but two Macs suddenly have their screens go black? We'll unravel that mystery along with a Dumb Question from John Ornsby asking if it's ok to partially turn off System Integrity Protection (SIP). I'll give you a review of the Tenba DNA 8 Messenger Bag and then we'll close out the show with Security Stuff from Bart Busschots.