Cloaked's $375M Mega-Round Leads Security and AI Surge in Top 10 Weekly VC Funding Deals

Venture capital investments slowed slightly this week, yet security and AI startups captured the spotlight with massive funding rounds totaling over $1 billion across the top 10 U.S. deals announced from March 14-20, 2026.

Cloaked dominated headlines by raising a whopping $375 million in its Series B round, signaling robust investor appetite for privacy solutions.

Security Sector's Unprecedented Dominance

Founded in 2020 in Massachusetts, Cloaked offers subscription-based privacy and security tools for consumers, led by General Catalyst and Liberty City Ventures in this landmark raise.

This infusion will accelerate development amid escalating cyber threats, building on the company's history of addressing individual data vulnerabilities.

Other security heavyweights like XBOW and Oasis Security each secured $120 million, with XBOW hitting unicorn status for autonomous testing tech and Oasis focusing on AI agent identity protection.

AI Infrastructure Breakthrough with Frore Systems

Frore Systems, an eight-year-old San Jose innovator, clinched $143 million in Series D funding at a $1.64 billion valuation, led by MVP Ventures, to advance AI hardware cooling solutions.

The deal underscores the critical need for efficient cooling in powering next-gen AI computing demands.

Additional AI and related rounds included Cape's $100 million Series C for privacy-focused mobile networks and Latent's $80 million Series A for healthcare AI platforms.

Healthcare and biotech also shone with Imperative Care's $100 million and Crossbow Therapeutics' $77 million to propel stroke treatments and cancer therapies forward.

These investments herald a future of enhanced cybersecurity for AI ecosystems, revolutionary hardware efficiencies, and accelerated clinical advancements.

Despite the broader VC slowdown, security and AI's resilience positions them as enduring pillars for innovation and growth.