Socket Secures $40M Series B to Safeguard Software Supply Chains Attacks,

Socket, the leading platform for protecting against software supply chain threats, has raised $40 million in a Series B funding round led by Abstract Ventures. This latest capital infusion brings Socket’s total funding to $65 million and accelerates its mission to modernize security for open-source software. Andreessen Horowitz (a16z) and Elad Gil, alongside several high-profile angels, also participated in the round.

With more than 90% of modern software built on open-source components, traditional Software Composition Analysis (SCA) tools have struggled to combat sophisticated supply chain attacks. Socket has emerged as the market leader by identifying malicious behaviors in real-time — such as backdoors, typo-squatting, and obfuscated code — allowing organizations to move from reactive vulnerability patching to proactive threat prevention.

“We’ve seen incredible momentum over the past year,” said Feross Aboukhadijeh, CEO and founder of Socket. “Companies across AI, B2B SaaS, and finance are switching from legacy SCA tools to Socket because we don’t just scan for vulnerabilities — we detect and block active threats as they occur.”

Redefining Software Security with Developer-Centric Solutions

Socket now supports six programming languages, including newly added Java and Ruby, expanding its comprehensive feature set that covers critical use cases like license enforcement and reachability analysis. This strategic evolution has enabled Socket to replace legacy solutions like Snyk and rapidly become a go-to platform for enterprise-grade security.

“Attackers are getting smarter, and legacy tools aren’t catching them,” said Jason Clinton, CISO at Anthropic. “Socket’s real-time threat detection helps us stay ahead of zero-day supply chain attacks and strengthens our security posture.”

Industry leaders are also taking note of Socket’s rapid innovation. “With generative AI driving unprecedented speed in software development, malicious packages can slip through faster than ever," commented Amjad Masad, founder and CEO at Replit. "Socket’s ability to block threats early empowers developers to innovate without compromising security.”

Rapid Growth and Strategic Vision

In just 12 months, Socket’s AI-powered threat detection technology has identified and blocked over 100 software supply chain attacks every week. Its solution now protects 7,500 organizations and more than 300,000 GitHub repositories, solidifying its position as a must-have tool in open-source security.

“Socket’s proactive approach and ability to replace outdated SCA tools are transforming how enterprises protect their software," commented Ramtin Naimi, founder and managing partner at Abstract Ventures. "We’re proud to lead this round and support their mission to make open-source software safer for everyone.”

The Series B round included participation from notable angels and industry leaders such as Bret Taylor, chairman of OpenAI, Phil Venables, Google’s CISO, and Tobias Lütke, CEO of Shopify, and Scott Johnston, CEO of Docker, among others.