Cybersecurity firm Zscaler's shares fall on dour annual forecasts

The forecast comes after peers Palo Alto Networks and SentinelOne boosted expectations with strong annual revenue forecasts as CrowdStrike's customers reevaluated their options in the aftermath of a global IT outage. Zscaler was on track to shed more than $4 billion from its market valuation of $29.2 billion if premarket losses hold.