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Nationwide Oilwell Varco (NOV) is present process a sweeping cybersecurity transformation underneath CIO Alex Philips, embracing a Zero Belief structure, strengthening identification defenses and infusing AI into safety operations. Whereas the journey will not be full, the outcomes, by all accounts, are dramatic – a 35-fold drop in safety occasions, the elimination of malware-related PC reimaging and thousands and thousands saved by scrapping legacy “equipment hell” {hardware}.
VentureBeat just lately sat down (nearly) for this in-depth interview the place Philips particulars how NOV achieved these outcomes with Zscaler’s Zero Belief platform, aggressive identification protections and a generative AI “co-worker” for its safety workforce.
He additionally shares how he retains NOV’s board engaged on cyber danger amid a world menace panorama the place 79% of assaults to achieve preliminary entry are malware-free, and adversaries can transfer from breach to interrupt out in as little as 51 seconds.
Beneath are excerpts of Philips’ latest interview with VentureBeat:
VentureBeat: Alex, NOV went “all in” on Zero Belief a lot of years in the past – what had been the standout beneficial properties?
Alex Philips: After we began, we had been a standard castle-and-moat mannequin that wasn’t maintaining. We didn’t know what Zero Belief was, we simply knew that we would have liked identification and conditional entry on the core of every little thing. Our journey started by adopting an identity-driven structure on Zscaler’s Zero Belief Alternate and it modified every little thing. Our visibility and safety protection dramatically elevated whereas concurrently experiencing a 35x discount within the variety of safety incidents. Earlier than, our workforce was chasing hundreds of malware incidents; now, it’s a tiny fraction of that. We additionally went from reimaging about 100 malware-infected machines every month to nearly zero now. That’s saved a substantial quantity of money and time. And for the reason that answer is cloud-based, Equipment hell is gone, as I wish to say.
The zero belief method now offers 27,500 NOV customers and third events policy-based entry to hundreds of inside purposes, all with out exposing these apps on to the web.
We had been then capable of take an interim step and re-architect our community to reap the benefits of internet-based connectivity vs. legacy costly MPLS. “On common, we elevated velocity by 10–20x, lowered latency to vital SaaS apps, and slashed value by over 4x… Annualized financial savings [from network changes] have already achieved over $6.5M,” Philips has famous of the venture.
VB: How did shifting to zero belief really scale back the safety noise by such an infinite issue?
Philips: A giant purpose is that our web visitors now goes by way of a Safety Service Edge (SSE) with full SSL inspection, sandboxing, and information loss prevention. Zscaler friends instantly with Microsoft, so Workplace 365 visitors bought quicker and safer – customers stopped making an attempt to bypass controls as a result of efficiency improved. After being denied SSL inspection with on-prem tools, we lastly bought authorized approval to decrypt SSL visitors for the reason that cloud proxy doesn’t give NOV entry to spy on the info itself. Which means malware hiding in encrypted streams began getting caught earlier than hitting endpoints. In brief, we shrunk the assault floor and let good visitors circulation freely. Fewer threats in meant fewer alerts total.
John McLeod, NOV’s CISO, concurred that the “previous community perimeter mannequin doesn’t work in a hybrid world” and that an identity-centric cloud safety stack was wanted. By routing all enterprise visitors by way of cloud safety layers (and even isolating dangerous internet classes by way of instruments like Zscaler’s Zero Belief Browser), NOV dramatically reduce down intrusion makes an attempt. This complete inspection functionality is what enabled NOV to identify and cease threats that beforehand slipped by way of, slashing incident volumes by 35x.
VB: Have been there any unexpected advantages to adopting Zero Belief you didn’t initially count on?
Alex Philips: Sure, our customers really most popular the cloud-based Zero Belief expertise over legacy VPN shoppers, so adoption was easy and gave us unprecedented agility for mobility, acquisitions, and even what we wish to name “Black Swan Occasions”. For instance, when COVID-19 hit, NOV was already ready! I instructed my management workforce if all 27,500 of our customers wanted to work remotely, our IT techniques may deal with it. My management was shocked and our firm stored shifting ahead with out lacking a beat.
VB: Identification-based assaults are on the rise – you’ve talked about staggering stats about credential theft. How is NOV fortifying identification and entry administration?
Philips: Attackers realize it’s typically simpler to log in with stolen credentials than to drop malware. The truth is, 79% of assaults to achieve preliminary entry in 2024 had been malware-free, counting on stolen credentials, AI-driven phishing, and deepfake scams, in response to latest menace stories. One in three cloud intrusions final 12 months concerned legitimate credentials. We’ve tightened identification insurance policies to make these techniques more durable.
For instance, we built-in our Zscaler platform with Okta for identification and conditional entry checks. Our conditional entry insurance policies confirm units have our SentinelOne antivirus agent operating earlier than granting entry, including an additional posture test. We’ve additionally drastically restricted who can carry out password or MFA resets. No single admin ought to be capable of bypass authentication controls alone. This separation of duties prevents an insider or compromised account from merely turning off our protections.
VB: You talked about discovering a niche even after disabling a person’s account. Are you able to clarify?
Philips: We found that for those who detect and disable a compromised person’s account, the attacker’s session tokens may nonetheless be lively. It isn’t sufficient to reset passwords; you must revoke session tokens to actually kick out an intruder. We’re partnering with a startup to create close to real-time token invalidation options for our mostly used sources. Basically, we wish to make a stolen token ineffective inside seconds. A Zero Belief structure helps as a result of every little thing is re-authenticated by way of a proxy or identification supplier, giving us a single choke level to cancel tokens globally. That method, even when an attacker grabs a VPN cookie or cloud session, they will’t transfer laterally as a result of we’ll kill that token quick.
VB: How else are you securing identities at NOV?
Philips: We implement multi-factor authentication (MFA) virtually in all places and monitor for irregular entry patterns. Okta, Zscaler, and SentinelOne collectively kind an identity-driven safety perimeter the place every login and system posture is repeatedly verified. Even when somebody steals a person password, they nonetheless face system checks, MFA challenges, conditional entry guidelines, and the chance of on the spot session revocation if something appears off. Resetting a password isn’t sufficient anymore — we should revoke session tokens immediately to cease lateral motion. That philosophy underpins NOV’s identification menace protection technique.
VB: You’ve additionally been an early adopter of AI in cybersecurity. How is NOV leveraging AI and generative fashions within the SOC?
Philips: We have now a comparatively small safety workforce for our international footprint, so we should work smarter. One method is bringing AI “co-workers” into our safety operations heart (SOC). We partnered with SentinelOne and began utilizing their AI safety analyst instrument—an AI that may write and run queries throughout our logs at machine velocity. It’s been a recreation changer, permitting analysts to ask questions in plain English and get solutions in seconds. As an alternative of manually crafting SQL queries, the AI suggests the subsequent question and even auto-generates a report, which has dropped our imply time to reply.
We’ve seen success tales the place menace hunts are carried out as much as 80% quicker utilizing AI assistants. Microsoft’s personal information exhibits that including generative AI can scale back incident imply time to decision by 30%. Past vendor instruments, we’re additionally experimenting with inside AI bots for operational analytics, utilizing OpenAI foundational AI fashions to assist non-technical workers shortly question information. In fact, we have now information safety guardrails in place so these AI options don’t leak delicate data.
VB: Cybersecurity is not simply an IT problem. How do you interact NOV’s board and executives on cyber danger?
Philips: I made it a precedence to carry our board of administrators alongside on our cyber journey. They don’t want the deep technical trivialities, however they do want to know our danger posture. With generative AI exploding, for instance, I briefed them on each the benefits and dangers early on. That schooling helps after I suggest controls to stop information leaks—there’s already alignment on why it’s needed.
The board views cybersecurity as a core enterprise danger now. They’re briefed on it at each assembly, not simply annually. We’ve even run tabletop workout routines with them to indicate how an assault would play out, turning summary threats into tangible resolution factors. That results in stronger top-down assist.
I make it a degree to consistently reinforce the fact of cyber danger. Even with thousands and thousands invested in our cybersecurity program, the chance is rarely absolutely eradicated. It isn’t if we can have an incident, however when.
VB: Any closing recommendation, based mostly on NOV’s journey, for different CIOs and CISOs on the market?
Philips: First, acknowledge that safety transformation and digital transformation go hand in hand. We couldn’t have moved to the cloud or enabled distant work so successfully with out Zero Belief, and the enterprise value financial savings helped fund safety enhancements. It actually was a “win, win, win.”
Second, give attention to the separation of duties in identification and entry. Nobody particular person ought to be capable of undermine your safety controls—myself included. Small course of adjustments like requiring two individuals to alter MFA for an exec or extremely privileged IT workers, can thwart malicious insiders, errors, and attackers.
Lastly, embrace AI rigorously however proactively. AI is already a actuality on the attacker aspect. A well-implemented AI assistant can multiply your workforce’s protection, however you need to handle the dangers of knowledge leakage or inaccurate fashions. Make sure that to merge AI output along with your workforce’s talent to create an AI-infused “brAIn”.
We all know the threats maintain evolving, however with zero belief, sturdy identification safety and now AI on our aspect, it helps give us a preventing likelihood.
