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Palo Alto Networks paying $3.3B to acquire observability startup Chronosphere, which has roots in Seattle

20 November 2025 at 09:53
Chronosphere co-founders Martin Mao (CEO) and Rob Skillington (CTO). (Chronosphere Photo)

Cybersecurity giant Palo Alto Networks announced Wednesday it will acquire Chronosphere in a deal valued at $3.35 billion.

Founded in 2019, Chronosphere sells observability software that helps engineering teams spot problems quickly and keep cloud applications running. Palo Alto Networks said the acquisition will help it meet the massive data demands created by modern AI workloads.

Chronosphere CEOΒ Martin MaoΒ and CTOΒ Rob SkillingtonΒ first met in the Seattle area at Microsoft, where they worked on migrating Office to the cloud-based Office 365 format. They both later joined Uber’s engineering teams.Β 

The company describes itself as a β€œdistributed team” with major hubs in New York City, Seattle, and Vilnius. Mao is based in the Seattle region, along with several Chronosphere employees. The team, including Mao and Skillington, will join Palo Alto once the acquisition closes. Chronosphere has more than 250 employees.

On the company’s earnings call with analysts Wednesday, Palo Alto Networks CEO Nikesh Arora described Chronosphere as β€œone of the fastest-growing software companies in history.” It counts two of the β€œpremier LLMs” as customers.

Arora said existing observability tools were not built for the AI era and that full observability has become cost prohibitive for many organizations. Chronosphere, he said, can deliver observability at one-third the cost of other leading solutions.

He added that Chronosphere has β€œchanged the observability model” with its combination of open source and architectural techniques.

When Palo Alto evaluated observability and data-pipeline vendors, Arora said the team was struck by Chronosphere’s engineering chops. β€œGenerally, engineers have too much pride to tell you that somebody else is good,” he said. β€œBut our team came back and said, β€˜these guys are the best engineers we’ve run into.'”

Chronosphere reports more than $160 million in annual recurring revenue, growing at triple-digit rates, according to Palo Alto.

Chronosphere will remain β€œlargely standalone” after the deal closes next year. β€œThey are basically a bunch of really smart engineers and forward-deployed engineers, as well as a few salespeople,” Arora said. β€œSo, we’re going to give them some support by introducing the right customers in very targeted fashion.”

The company’s investors include General Atlantic; Greylock Partners; Lux Capital; Addition; Founders Fund; Spark Capital; and Glynn Capital.

β€œWhen Rob Skillington and I started Chronosphere six years ago, we set out to build a next-generation observability platform capable of handling the most complex cloud native workloads,” Mao wrote on LinkedIn. β€œToday, we are the observability leader trusted by the world’s top AI and digital-native innovators.”

Earlier this year Palo Alto Networks also acquired Protect AI, a Seattle startup that helps companies monitor machine learning systems.

Palo Alto Networks to Acquire Observability Platform Chronosphere in $3.35 Billion Deal

19 November 2025 at 21:18

The move to acquire Chronosphere is the latest of several acquisitions in recent years and follows a massive $25 billion deal to acquire CyberArk.

The post Palo Alto Networks to Acquire Observability Platform Chronosphere in $3.35 Billion Deal appeared first on SecurityWeek.

Palo Alto Networks to Acquire AI Observability Platform Chronosphere for $3.35 Billion

19 November 2025 at 17:56

Palo Alto Networks Inc. announced Wednesday it will acquire Chronosphere, a next-generation observability platform designed for artificial intelligence (AI) workloads, in a $3.35 billion deal combining cash and replacement equity awards. The acquisition, pending regulatory approval, is expected to close in the second half of Palo Alto Networks’ fiscal 2026. The move represents the cybersecurity..

The post Palo Alto Networks to Acquire AI Observability Platform Chronosphere for $3.35 Billion appeared first on Security Boulevard.

LANDFALL Spyware Targeted Samsung Galaxy Phones via Malicious Images

10 November 2025 at 11:41
Unit 42 discovered LANDFALL, commercial-grade Android spyware, which used a hidden image vulnerability (CVE-2025-21042) to remotely spy on Samsung Galaxy users via WhatsApp. Update your phone now.

Black Hat USA 2025 – AI, Innovation, and the Power of the Cybersecurity Community

By: Gary
13 August 2025 at 14:07

By Gary Miliefsky, Publisher of Cyber Defense Magazine Black Hat, the cybersecurity industry’s most established and in-depth security event series, has once again proven why it remains the go-to gathering...

The post Black Hat USA 2025 – AI, Innovation, and the Power of the Cybersecurity Community appeared first on Cyber Defense Magazine.

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