Lena Smart is the kind of CISO every organization needs. In 2019, she became MongoDB's first CISO - her third chief security position - and, since joining, she has implemented programs that have transformed the company's security posture and culture. In a conversation with Tessian's CEO Tim Sadler, she reveals how and why launching a security champions program has successfully reduced phishing click-thru rates, minimized threats caused by human error and helped build a stronger security cultu...