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Artificial intelligence (AI) is creating a painful cybersecurity headache for almost every business around the world. Hackers are using this technology to stage sophisticated attacks, and traditional defense mechanisms are struggling to keep up. But many businesses are also using AI software everyday, creating an entirely new set of vulnerabilities.

Zscaler (NASDAQ: ZS) was an early pioneer of the zero-trust cybersecurity architecture, and it has evolved to become one of the best defenses against AI-related threats. In simple terms, it makes valuable applications and data invisible to any user without authorized access to a given corporate network, and an attacker can't hit what they can't see -- not even if they are using an advanced tool like AI.

Missed Nvidia in 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia. Continue »

The stock is still down 55% from its 2021 record high, when a frenzy in the tech market drove its valuation to an unsustainable level. But the majority of the analysts tracked by The Wall Street Journal have assigned it a buy rating, and not a single one recommends selling. Here's why their bullish consensus might be justified as AI adoption continues to ramp up.