Kevin Mahaffey

Who they are

Kevin Mahaffey is co-founder and investor at SNR.vc — previously co-founded Lookout, the mobile security company, and before that founded DailyWireless.com, which was acquired by Tippit, Inc.

Person

Kevin has been programming since age 8, and that technical depth runs through everything he's built. He co-founded DailyWireless.com before it was acquired by Tippit, Inc., then co-founded Lookout — the mobile security company — where he served as CTO, building it into one of the defining names in mobile security. After Lookout, he channeled that operator experience into SNR.vc, an early-stage venture firm he co-founded in San Francisco focused on AI, robotics, biotech, SaaS, and cybersecurity. The through-line is a founder-turned-investor who keeps one foot in the technical weeds: he speaks at DEF CON, Black Hat, and RSA Conference on security and privacy, and runs a Substack at writing.snr.vc covering defensibility, applications, and investment philosophy. His writing themes — cybersecurity, mobile security, privacy, AI, and emerging technology — map directly onto the sectors he bets on.

Company

SNR.vc's most recent disclosed deal was its participation in Anzen's Series A in 2025, following a Series A in Metaplane in 2024 — a pattern of backing enterprise and high-tech companies into their growth rounds after seeding them early. The firm was founded in 2015 and is headquartered in San Francisco. It focuses on seed and pre-seed rounds, with selective Series A follow-ons, and its portfolio spans Enterprise Applications, High Tech, and Consumer sectors. Kevin co-leads the firm alongside partner Amit Gupta, who brings complementary experience from Qualcomm, Lookout, and Benchling.

Market

SNR.vc operates in the early-stage VC market, where it co-invests alongside funds including Felicis Ventures and Anthos Capital. The broader VC industry is contending with geopolitical disruption, increased protectionism, and the mass adoption of AI — dynamics that reshape both deal flow and portfolio risk, particularly for funds with exposure to high-tech and cybersecurity.

Network

Kevin's closest named collaborator at SNR.vc is Amit Gupta, his co-founder and partner, who previously worked at Qualcomm, Lookout, and Benchling — the Lookout overlap suggesting a long working relationship that predates the fund. Portfolio touchpoints include Boundless and Salt Security, where SNR has made investments.

Amit Gupta· Co-founder and Partner, SNR.vc

How they likely show up

Programming since age 8 and a CTO background at Lookout → he likely reads code and architecture claims critically; won't be satisfied with hand-wavy technical pitches.
Hybrid role-type (operator-turned-investor, still writing and speaking on technical topics) → he probably blurs the line between thesis-building and hands-on founder support.
Active Substack at writing.snr.vc covering defensibility and investment philosophy → he thinks in written frameworks and is comfortable articulating his views publicly; he'll expect sharp, specific thinking in return.
Long-tenure signal across both Lookout and SNR.vc → he likely builds conviction slowly and bets on relationships over transactions.
Regular presence at DEF CON, Black Hat, and RSA Conference → he stays current in the security research community, not just the investment community; he's a practitioner, not just a capital allocator.
Possibly — focus on cybersecurity and AI in both portfolio and writing suggests he's actively forming views on the intersection of the two, and may be particularly sharp on that thesis right now.

Conversation tips

→ Reference a specific post from writing.snr.vc — he's writing about defensibility and applications, so engaging with a specific argument he's made signals you've done the work.
→ Come with a technical opinion, not just a market view — his CTO background means he'll probe the architecture layer of any AI or security claim.
→ Ask about the Lookout-to-SNR transition specifically — moving from operator to investor after building a security company is a deliberate arc worth understanding.
→ Don't pitch a sector he knows cold (mobile security, cybersecurity) without having done the depth work — he'll notice fast.
→ If you're a founder, lead with what makes your company defensible, not just the TAM — that's the vocabulary he writes and thinks in.

Toolbox

Openers

Open on the Anzen Series A participation in 2025 — it's his most recent disclosed deal and a way to ask how SNR thinks about when to follow on versus hold the seed line.
Reference DailyWireless.com, his first founded company before Lookout — it's an early signal about his appetite for building from zero, and most people skip past it.
Bring up his DEF CON or Black Hat talks — he's been presenting security research there for years, which is unusual for a VC; it's a real differentiator worth exploring.

Discovery questions

When you were CTO at Lookout, what did you learn about defensibility in security companies that now shapes how you evaluate deals at SNR?
Your Substack focuses on defensibility and applications — how has that thesis shifted as AI has compressed the time-to-build for security products?
SNR co-invests with funds like Felicis and Anthos — how do you think about your differentiated edge in a deal when larger platforms are at the table?

Avoid

Don't lead with broad AI hype or surface-level security market sizing — he has a decade of technical depth in both areas and will disengage quickly if the conversation stays at altitude.

Make it yours