Key Takeaways CrowdStrike Holdings shares hit a record intraday high Tuesday after a cyberattack hit Chinese AI startup DeepSeek.The attack comes after tech stocks sank Monday on news that DeepSeek's AI assistant runs on less-advanced chips and at a lower cost than U.

Investors should be closely monitoring CRWD right now, with cybersecurity in focus after the reported attack on DeepSeek.

Chinese startup DeepSeek said on Monday it will temporarily limit registrations due to a cyberattack after the company's AI assistant amassed sudden popularity. The startup earlier in the day was also hit by outages on its website after its AI assistant became the top-rated free application available on Apple's App Store in the United States.