The cybersecurity firm caused a global tech outage, leading to a crash in its stock price.Cybersecurity company CrowdStrike (CRWD -0.33%) was once a hot stock in its industry. Shares soared from a 52-week low of $141.97 last August to a high of$398.33 on July 9.That changed days later on July 19 when, after CrowdStrike made what should have been a routine software update, an error in the code caused massive disruption to computer systems around the globe. Airlines, banks, hospitals, and other organizations ...